WO1998057436A2 - Source coding enhancement using spectral-band replication - Google Patents

Source coding enhancement using spectral-band replication Download PDF

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Publication number
WO1998057436A2
WO1998057436A2 PCT/IB1998/000893 IB9800893W WO9857436A2 WO 1998057436 A2 WO1998057436 A2 WO 1998057436A2 IB 9800893 W IB9800893 W IB 9800893W WO 9857436 A2 WO9857436 A2 WO 9857436A2
Authority
WO
WIPO (PCT)
Prior art keywords
signal
signals
die
transposition
subband signals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB1998/000893
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English (en)
French (fr)
Other versions
WO1998057436A3 (en
Inventor
Lars Gustaf Liljeryd
Per Rune Albin Ekstrand
Lars Fredrik Henn
Hans Magnus Kristofer KJÖRLING
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Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SE9702213A external-priority patent/SE9702213D0/xx
Priority claimed from SE9704634A external-priority patent/SE9704634D0/xx
Priority to BRPI9805989-0A priority Critical patent/BR9805989B1/pt
Priority to US09/230,799 priority patent/US6680972B1/en
Priority to HK01101733.9A priority patent/HK1030843B/xx
Priority to AT98921697T priority patent/ATE257987T1/de
Priority to AU74465/98A priority patent/AU7446598A/en
Priority to DE69821089T priority patent/DE69821089T2/de
Application filed by Individual filed Critical Individual
Priority to JP50196299A priority patent/JP3871347B2/ja
Priority to EP98921697A priority patent/EP0940015B1/en
Publication of WO1998057436A2 publication Critical patent/WO1998057436A2/en
Anticipated expiration legal-status Critical
Publication of WO1998057436A3 publication Critical patent/WO1998057436A3/en
Priority to US10/680,224 priority patent/US6925116B2/en
Priority to US10/681,105 priority patent/US7328162B2/en
Priority to US10/682,030 priority patent/US7283955B2/en
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands

Definitions

  • channels k of said analysis filterbank or transform are connected to channels Mk, M ⁇ 1, in a synthesis filterbank or transform, and
  • Fig 2 illustrates spectral replication of upper harmonics according to the present invention
  • Fig 14 illustrates generation of a non-overlappmg combination of several harmonic orders according to the present mvention
  • Fig 15 illustrates generation of an mterleaved combination of several harmomc orders accordmg to the present mvention
  • Fig. 2 the generation of At* order harmonics, where M is an integer > 2, is shown.
  • the term ⁇ 1 order harmonics is used for simplicity, albeit the process generates A/* order harmonics to all signals in a certain frequency region, which in most cases are themselves harmonics of unknown order.
  • the input signal with the frequency domain representation ⁇ /) is bandlimited to the range 0 tof max , 201.
  • Fig 7 the behaviour of the system under transient conditions regarding die position of die codebook is illustrated Pnor to the transient, die codebook 1 representing the mput segment 1 is positioned "to d e left" of segment 1 Co ⁇ elation segment 1 represents a part of the previous output and is used to find synchromsation pomt 1 in codebook 1
  • die codebook is moved accordmg to Fig 7a and is stationary untd the mput segment currently being processed is once again "to die right" of the codebook This makes it impossible to duplicate die transient smce die system is not allowed to search for synchromsation pomts p ⁇ or to the transient
  • x 2 ( «') is filtered through a /"-channel modified analysis filter bank 2107, 2213, where the ⁇ analysis filters are exponentially modulated, producing a set of complex-valued subband signals.
  • the filter bank will be oversampled by a factor M
  • the normalised subband samples are represented by 2301 and die spectral envelopes are represented by the scalefactors 2305.
  • the transmission to decoder 2303 is shown in parallel form.
  • the spectral envelope information is generated and transmitted according to Fig. 23, whereby only me lowband subband samples are transmitted. Transmitted scalefactors thus span the full frequency range while die subband samples only span a restricted frequency range, excluding die highband.
  • die decoder die lowband subband samples 2401 are transposed 2403 and combined with the received highband spectral envelope information 2405. In this way the synthetic highband spectral envelope is identical to that ofthe original, while maintaining a significant bit rate reduction.
  • Transient response improvements are common problems m audio codecs, and similar artifacts occur m the present mvention
  • patching generates spectral "zeros" or notches, co ⁇ esponding to time domain pre- and post-echoes, I e spunous transients before and after "true” transients Albeit the P-blocks "fill in the zeros" for slowly varying tonal signals, the pre- and post-echoes remain
  • the improved multiband method is mtended to work on discrete smusoids, where die number of sinusoids is rest ⁇ cted to one per subband Transients or noise in a subband can be viewed as a large number of discrete smusoids witiun that subband ⁇ us generates mtermodulation distortion
  • These artifacts are considered as additional quantization-noise sources connected to die rephcated highband channels dunng transient intervals Traditional metiiods to avoid pre- and post-echo artifacts m

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Luminescent Compositions (AREA)
  • Pyridine Compounds (AREA)
  • Cosmetics (AREA)
PCT/IB1998/000893 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication Ceased WO1998057436A2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
JP50196299A JP3871347B2 (ja) 1997-06-10 1998-06-09 スペクトル帯域複製を用いた原始コーディングの強化
EP98921697A EP0940015B1 (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication
US09/230,799 US6680972B1 (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication
HK01101733.9A HK1030843B (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication
AT98921697T ATE257987T1 (de) 1997-06-10 1998-06-09 Verbesserung von quellenkodierung unter verwendung von spektralbandreplikation
AU74465/98A AU7446598A (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication
DE69821089T DE69821089T2 (de) 1997-06-10 1998-06-09 Verbesserung von quellenkodierung unter verwendung von spektralbandreplikation
BRPI9805989-0A BR9805989B1 (pt) 1997-06-10 1998-06-09 método e aparelho para decodificar um sinal codificado.
US10/680,224 US6925116B2 (en) 1997-06-10 2003-10-08 Source coding enhancement using spectral-band replication
US10/681,105 US7328162B2 (en) 1997-06-10 2003-10-09 Source coding enhancement using spectral-band replication
US10/682,030 US7283955B2 (en) 1997-06-10 2003-10-10 Source coding enhancement using spectral-band replication

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
SE9702213A SE9702213D0 (sv) 1997-06-10 1997-06-10 A method and a device for bit-rate reduction using synthetic bandwidth expansion
SE9702213-1 1997-06-10
SE9704634-6 1997-12-12
SE9704634A SE9704634D0 (sv) 1997-12-12 1997-12-12 Synthetic bandwidth expansion of audio signals
SE9800268-6 1998-01-30
SE9800268A SE512719C2 (sv) 1997-06-10 1998-01-30 En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion

Related Child Applications (5)

Application Number Title Priority Date Filing Date
US09230799 A-371-Of-International 1998-06-09
US09/230,799 A-371-Of-International US6680972B1 (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication
US10/680,224 Division US6925116B2 (en) 1997-06-10 2003-10-08 Source coding enhancement using spectral-band replication
US10/681,105 Division US7328162B2 (en) 1997-06-10 2003-10-09 Source coding enhancement using spectral-band replication
US10/682,030 Division US7283955B2 (en) 1997-06-10 2003-10-10 Source coding enhancement using spectral-band replication

Publications (2)

Publication Number Publication Date
WO1998057436A2 true WO1998057436A2 (en) 1998-12-17
WO1998057436A3 WO1998057436A3 (en) 2000-02-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1998/000893 Ceased WO1998057436A2 (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication

Country Status (13)

Country Link
US (4) US6680972B1 (enExample)
EP (2) EP1367566B1 (enExample)
JP (2) JP3871347B2 (enExample)
CN (2) CN1308916C (enExample)
AT (2) ATE257987T1 (enExample)
AU (1) AU7446598A (enExample)
BR (1) BR9805989B1 (enExample)
DE (2) DE69831435T2 (enExample)
DK (2) DK0940015T3 (enExample)
ES (2) ES2213901T3 (enExample)
PT (2) PT940015E (enExample)
SE (1) SE512719C2 (enExample)
WO (1) WO1998057436A2 (enExample)

Cited By (134)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000045378A3 (en) * 1999-01-27 2000-11-16 Lars Gustaf Liljeryd Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
WO2000045379A3 (en) * 1999-01-27 2000-12-07 Lars Gustaf Liljeryd Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting
WO2001026095A1 (en) * 1999-10-01 2001-04-12 Coding Technologies Sweden Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
FR2807897A1 (fr) * 2000-04-18 2001-10-19 France Telecom Methode et dispositif d'enrichissement spectral
WO2001091111A1 (en) * 2000-05-23 2001-11-29 Coding Technologies Sweden Ab Improved spectral translation/folding in the subband domain
WO2002041301A1 (en) * 2000-11-14 2002-05-23 Coding Technologies Sweden Ab Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering
WO2002041302A1 (en) * 2000-11-15 2002-05-23 Coding Technologies Sweden Ab Enhancing the performance of coding systems that use high frequency reconstruction methods
WO2002052545A1 (en) * 2000-12-22 2002-07-04 Coding Technologies Sweden Ab Enhancing source coding systems by adaptive transposition
FR2821476A1 (fr) * 2001-02-23 2002-08-30 France Telecom Procede de reconstruction spectrale de signal audio a spectre incomplet et dispositif correspondant
FR2821475A1 (fr) * 2001-02-23 2002-08-30 France Telecom Procede et dispositif de reconstruction spectrale de signaux a plusieurs voies, notamment de signaux stereophoniques
FR2821501A1 (fr) * 2001-02-23 2002-08-30 France Telecom Procede et dispositif de reconstruction spectrale d'un signal a spectre incomplet et systeme de codage/decodage associe
JP2002328699A (ja) * 2001-03-02 2002-11-15 Matsushita Electric Ind Co Ltd 符号化装置および復号化装置
WO2003007656A1 (en) * 2001-07-10 2003-01-23 Coding Technologies Ab Efficient and scalable parametric stereo coding for low bitrate applications
JP2003108197A (ja) * 2001-07-13 2003-04-11 Matsushita Electric Ind Co Ltd オーディオ信号復号化装置およびオーディオ信号符号化装置
WO2003046891A1 (en) * 2001-11-29 2003-06-05 Coding Technologies Ab Methods for improving high frequency reconstruction
JP2003526123A (ja) * 2000-03-07 2003-09-02 ノキア コーポレイション 音声復号器及び音声を復号化する方法
WO2004013841A1 (en) * 2002-08-01 2004-02-12 Matsushita Electric Industrial Co., Ltd. Audio decoding apparatus and audio decoding method based on spectral band repliction
EP1351218A3 (en) * 2002-03-06 2004-04-07 Kabushiki Kaisha Toshiba Audio signal reproducing method and an apparatus for reproducing the same
WO2004027998A3 (en) * 2002-09-18 2004-05-27 Coding Tech Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
EP1455345A1 (en) * 2003-03-07 2004-09-08 Samsung Electronics Co., Ltd. Method and apparatus for encoding and/or decoding digital data using bandwidth extension technology
JPWO2003003345A1 (ja) * 2001-06-29 2004-10-21 株式会社ケンウッド 信号の周波数成分を補間するための装置および方法
EP1351401A4 (en) * 2001-07-13 2004-11-17 Matsushita Electric Industrial Co Ltd AUDIO SIGNAL DECODING DEVICE AND AUDIO SIGNAL ENCODING DEVICE
WO2004102532A1 (en) * 2003-05-08 2004-11-25 Dolby Laboratories Licensing Corporation Improved audio coding systems and methods using spectral component coupling and spectral component regeneration
EP1160977A3 (en) * 2000-06-02 2004-12-08 Agere Systems Guardian Corporation Method and apparatus for reducing aliasing in cascaded filter banks
WO2005001814A1 (en) 2003-06-30 2005-01-06 Koninklijke Philips Electronics N.V. Improving quality of decoded audio by adding noise
WO2005001813A1 (en) 2003-06-25 2005-01-06 Coding Technologies Ab Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal
WO2005031705A1 (ja) 2003-09-30 2005-04-07 Matsushita Electric Industrial Co., Ltd. サンプリングレート変換装置、符号化装置、復号化装置、およびこれらの方法
RU2259632C1 (ru) * 2004-03-24 2005-08-27 Московский государственный университет путей сообщения (МИИТ) Способ деления полосы частот передаваемого сигнала и устройство для его осуществления
EP1531551A4 (en) * 2002-08-21 2006-01-04 Sony Corp SIGNAL CODING DEVICE, METHOD, SIGNAL DECODING DEVICE AND METHOD
EP1617414A2 (en) 2004-07-14 2006-01-18 British Broadcasting Corporation Transmission of a data signal in an audio signal
WO2006018748A1 (en) * 2004-08-17 2006-02-23 Koninklijke Philips Electronics N.V. Scalable audio coding
US7069212B2 (en) 2002-09-19 2006-06-27 Matsushita Elecric Industrial Co., Ltd. Audio decoding apparatus and method for band expansion with aliasing adjustment
US7082573B2 (en) 2003-07-30 2006-07-25 America Online, Inc. Method and system for managing digital assets
US7184961B2 (en) * 2000-07-21 2007-02-27 Kabushiki Kaisha Kenwood Frequency thinning device and method for compressing information by thinning out frequency components of signal
US7242710B2 (en) * 2001-04-02 2007-07-10 Coding Technologies Ab Aliasing reduction using complex-exponential modulated filterbanks
US7246065B2 (en) 2002-01-30 2007-07-17 Matsushita Electric Industrial Co., Ltd. Band-division encoder utilizing a plurality of encoding units
EP1503370A4 (en) * 2002-05-07 2007-08-22 Sony Corp Coding method, coding device, decoding method and decoding device
US7269550B2 (en) 2002-04-11 2007-09-11 Matsushita Electric Industrial Co., Ltd. Encoding device and decoding device
US7283967B2 (en) 2001-11-02 2007-10-16 Matsushita Electric Industrial Co., Ltd. Encoding device decoding device
US7308401B2 (en) 2001-11-14 2007-12-11 Matsushita Electric Industrial Co., Ltd. Encoding device and decoding device
US7318027B2 (en) 2003-02-06 2008-01-08 Dolby Laboratories Licensing Corporation Conversion of synthesized spectral components for encoding and low-complexity transcoding
US7337118B2 (en) 2002-06-17 2008-02-26 Dolby Laboratories Licensing Corporation Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
US7451091B2 (en) 2003-10-07 2008-11-11 Matsushita Electric Industrial Co., Ltd. Method for determining time borders and frequency resolutions for spectral envelope coding
US7489111B2 (en) 2005-12-08 2009-02-10 Robert W. Wise Holstered cordless power tool
AU2006235813B2 (en) * 2002-09-18 2009-03-12 Dolby International Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
EP2023344A4 (en) * 2006-05-22 2009-06-17 Oki Electric Ind Co Ltd OFF-BAND SIGNAL GENERATOR AND FREQUENCY BAND EXPANSION DEVICE
US7555434B2 (en) 2002-07-19 2009-06-30 Nec Corporation Audio decoding device, decoding method, and program
SG153658A1 (en) * 2002-03-28 2009-07-29 Dolby Lab Licensing Corp Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
DE102008015702A1 (de) 2008-01-31 2009-08-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Bandbreitenerweiterung eines Audiosignals
EP2104097A1 (en) * 2008-03-19 2009-09-23 Oki Electric Industry Co., Ltd. Voice band expander and expansion method
EP1318502A3 (de) * 2001-11-08 2009-10-07 Grundig Multimedia B.V. Verfahren zur Audiocodierung
KR100923301B1 (ko) * 2003-03-22 2009-10-23 삼성전자주식회사 대역 확장 기법을 이용한 오디오 데이터의 부호화 방법,그 장치, 복호화 방법 및 그 장치
KR100923300B1 (ko) * 2003-03-22 2009-10-23 삼성전자주식회사 대역 확장 기법을 이용한 오디오 데이터의 부호화 방법,그 장치, 복호화 방법 및 그 장치
US7660424B2 (en) 2001-02-07 2010-02-09 Dolby Laboratories Licensing Corporation Audio channel spatial translation
US7668722B2 (en) 2004-11-02 2010-02-23 Coding Technologies Ab Multi parametrisation based multi-channel reconstruction
US7668711B2 (en) 2004-04-23 2010-02-23 Panasonic Corporation Coding equipment
US7676678B2 (en) 2005-09-06 2010-03-09 Nero Ag Method for signing a data package and signing apparatus
US7685218B2 (en) 2001-04-10 2010-03-23 Dolby Laboratories Licensing Corporation High frequency signal construction method and apparatus
EP2169670A2 (en) 2008-09-25 2010-03-31 LG Electronics Inc. An apparatus for processing an audio signal and method thereof
EP2184929A1 (en) 2008-11-10 2010-05-12 Oticon A/S N band FM demodulation to aid cochlear hearing impaired persons
WO2010066861A2 (en) 2008-12-10 2010-06-17 Skype Limited Regeneration of wideband speech
US7742927B2 (en) 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
WO2010081892A2 (en) 2009-01-16 2010-07-22 Dolby Sweden Ab Cross product enhanced harmonic transposition
WO2010086461A1 (en) * 2009-01-28 2010-08-05 Dolby International Ab Improved harmonic transposition
WO2010094710A2 (en) 2009-02-18 2010-08-26 Dolby International Ab Low delay modulated filter bank
WO2010112587A1 (en) * 2009-04-02 2010-10-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extension
EP2218068A4 (en) * 2007-11-21 2010-11-24 Lg Electronics Inc METHOD AND APPARATUS FOR SIGNAL PROCESSING
WO2010136459A1 (en) * 2009-05-27 2010-12-02 Dolby International Ab Efficient combined harmonic transposition
WO2011000780A1 (en) * 2009-06-29 2011-01-06 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Bandwidth extension encoder, bandwidth extension decoder and phase vocoder
EP2293295A2 (en) 2008-03-10 2011-03-09 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Device and method for manipulating an audio signal having a transient event
WO2011047887A1 (en) * 2009-10-21 2011-04-28 Dolby International Ab Oversampling in a combined transposer filter bank
EP1956590A4 (en) * 2005-11-30 2011-07-13 Kenwood Corp INTERPOLATION DEVICE, AUDIO REPRODUCTION DEVICE, INTERPOLATION METHOD AND INTERPOLATION PROGRAM
WO2011089029A1 (en) 2010-01-19 2011-07-28 Dolby International Ab Improved subband block based harmonic transposition
EP2360686A1 (en) * 2010-01-28 2011-08-24 Samsung Electronics Co., Ltd. Signal processing method and apparatus for enhancing speech signals
WO2011110500A1 (en) 2010-03-09 2011-09-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing an input audio signal using cascaded filterbanks
US8046214B2 (en) 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US8065139B2 (en) 2004-06-21 2011-11-22 Koninklijke Philips Electronics N.V. Method of audio encoding
WO2012010494A1 (en) 2010-07-19 2012-01-26 Dolby International Ab Processing of audio signals during high frequency reconstruction
US8116459B2 (en) * 2006-03-28 2012-02-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Enhanced method for signal shaping in multi-channel audio reconstruction
US8249883B2 (en) 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
US8255229B2 (en) 2007-06-29 2012-08-28 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US8255231B2 (en) 2004-11-02 2012-08-28 Koninklijke Philips Electronics N.V. Encoding and decoding of audio signals using complex-valued filter banks
JP2012208514A (ja) * 2006-06-21 2012-10-25 Samsung Electronics Co Ltd 符号化方法及び復号化方法
US8301439B2 (en) 2005-07-15 2012-10-30 Samsung Electronics Co., Ltd Method and apparatus to encode/decode low bit-rate audio signal by approximiating high frequency envelope with strongly correlated low frequency codevectors
US8311809B2 (en) 2003-04-17 2012-11-13 Koninklijke Philips Electronics N.V. Converting decoded sub-band signal into a stereo signal
US8332210B2 (en) 2008-12-10 2012-12-11 Skype Regeneration of wideband speech
KR101223835B1 (ko) * 2008-07-11 2013-01-17 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 신호 합성기 및 오디오 신호 인코더
US8386268B2 (en) 2009-04-09 2013-02-26 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a synthesis audio signal using a patching control signal
US8396717B2 (en) 2005-09-30 2013-03-12 Panasonic Corporation Speech encoding apparatus and speech encoding method
JP2013050543A (ja) * 2011-08-30 2013-03-14 Fujitsu Ltd 符号化方法、符号化装置および符号化プログラム
US8401862B2 (en) 2008-12-15 2013-03-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, method for providing output signal, bandwidth extension decoder, and method for providing bandwidth extended audio signal
US8423371B2 (en) 2007-12-21 2013-04-16 Panasonic Corporation Audio encoder, decoder, and encoding method thereof
US8433582B2 (en) 2008-02-01 2013-04-30 Motorola Mobility Llc Method and apparatus for estimating high-band energy in a bandwidth extension system
US8463412B2 (en) 2008-08-21 2013-06-11 Motorola Mobility Llc Method and apparatus to facilitate determining signal bounding frequencies
US8463599B2 (en) 2009-02-04 2013-06-11 Motorola Mobility Llc Bandwidth extension method and apparatus for a modified discrete cosine transform audio coder
US8494865B2 (en) 2008-10-08 2013-07-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio decoder, audio encoder, method for decoding an audio signal, method for encoding an audio signal, computer program and audio signal
US8527283B2 (en) 2008-02-07 2013-09-03 Motorola Mobility Llc Method and apparatus for estimating high-band energy in a bandwidth extension system
EP2360688A4 (en) * 2009-10-21 2013-09-04 Panasonic Corp DEVICE FOR PROCESSING SOUND SIGNALS, SOUND ENCODING DEVICE AND SOUND WRENCHING DEVICE
US8605911B2 (en) 2001-07-10 2013-12-10 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US8645127B2 (en) 2004-01-23 2014-02-04 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
EP2704142A1 (en) 2012-08-27 2014-03-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for reproducing an audio signal, apparatus and method for generating a coded audio signal, computer program and coded audio signal
KR20140027533A (ko) * 2009-09-18 2014-03-06 돌비 인터네셔널 에이비 입력 신호를 전위시키기 위한 시스템 및 방법, 상기 방법을 수행하는 소프트웨어 프로그램 및 컴퓨터 프로그램 제품을 포함하는 저장 매체
US8688441B2 (en) 2007-11-29 2014-04-01 Motorola Mobility Llc Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape for out-of-signal bandwidth content
EP2317509A4 (en) * 2008-08-29 2014-06-11 Sony Corp DEVICE AND METHOD FOR EXPANSION OF A FREQUENCY BAND AND CODING DEVICE AND METHOD, DECODING DEVICE AND METHOD AND PROGRAM THEREFOR
US8788275B2 (en) 2006-11-24 2014-07-22 Fujitsu Limited Decoding method and apparatus for an audio signal through high frequency compensation
US8805696B2 (en) 2001-12-14 2014-08-12 Microsoft Corporation Quality improvement techniques in an audio encoder
US8880410B2 (en) 2008-07-11 2014-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
AU2014200151B2 (en) * 2010-01-19 2015-04-16 Dolby International Ab Improved subband block based harmonic transposition
US9093080B2 (en) 2010-06-09 2015-07-28 Panasonic Intellectual Property Corporation Of America Bandwidth extension method, bandwidth extension apparatus, program, integrated circuit, and audio decoding apparatus
RU2562434C2 (ru) * 2010-08-12 2015-09-10 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Передискретизация выходных сигналов аудиокодеков на основе квадратурных зеркальных фильтров (qmf)
AU2014201331B2 (en) * 2009-06-29 2015-10-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Bandwidth extension encoder, bandwidth extension decoder and phase vocoder
US9159333B2 (en) 2006-06-21 2015-10-13 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
US9172342B2 (en) 2010-09-16 2015-10-27 Dolby International Ab Cross product enhanced subband block based harmonic transposition
US9240196B2 (en) 2010-03-09 2016-01-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for handling transient sound events in audio signals when changing the replay speed or pitch
US9318127B2 (en) 2010-03-09 2016-04-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Device and method for improved magnitude response and temporal alignment in a phase vocoder based bandwidth extension method for audio signals
AU2013211560B2 (en) * 2009-01-28 2016-04-28 Dolby International Ab Improved harmonic transposition
US9646624B2 (en) 2013-01-29 2017-05-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for providing an encoded audio information, method for providing a decoded audio information, computer program and encoded representation using a signal-adaptive bandwidth extension
EP3182411A1 (en) 2015-12-14 2017-06-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing an encoded audio signal
AU2015221516B2 (en) * 2009-01-28 2017-08-10 Dolby International Ab Improved Harmonic Transposition
US9805735B2 (en) 2010-04-16 2017-10-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for generating a wideband signal using guided bandwidth extension and blind bandwidth extension
AU2015264887B2 (en) * 2009-05-27 2017-12-07 Dolby International Ab Efficient Combined Harmonic Transposition
US9947340B2 (en) 2008-12-10 2018-04-17 Skype Regeneration of wideband speech
US9997162B2 (en) 2012-09-17 2018-06-12 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal
US10140997B2 (en) 2014-07-01 2018-11-27 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Decoder and method for decoding an audio signal, encoder and method for encoding an audio signal
USRE47180E1 (en) 2008-07-11 2018-12-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
NO343581B1 (no) * 2017-03-01 2019-04-08 Dolby Int Ab Fremgangsmåte, anordning og program til spektralinnhyllingsjustering
AU2017206142B2 (en) * 2010-01-19 2019-07-11 Dolby International Ab Improved Subband Block Based Harmonic Transposition
US10522156B2 (en) 2009-04-02 2019-12-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extension
EP3745397A1 (en) * 2014-03-24 2020-12-02 Sony Corporation Decoding device and decoding method, and program
RU2765345C2 (ru) * 2010-08-03 2022-01-28 Сони Корпорейшн Устройство и способ обработки сигнала и программа
EP3985666A1 (en) 2009-01-28 2022-04-20 Dolby International AB Improved harmonic transposition
RU2772356C2 (ru) * 2010-01-19 2022-05-19 Долби Интернешнл Аб Усовершенствованное гармоническое преобразование на основе блока поддиапазонов
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
US12002476B2 (en) 2010-07-19 2024-06-04 Dolby International Ab Processing of audio signals during high frequency reconstruction

Families Citing this family (294)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100684051B1 (ko) * 1996-11-07 2007-07-11 코닌클리케 필립스 일렉트로닉스 엔.브이. 비트스트림신호의데이터처리
JP4193243B2 (ja) * 1998-10-07 2008-12-10 ソニー株式会社 音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体
US7085377B1 (en) * 1999-07-30 2006-08-01 Lucent Technologies Inc. Information delivery in a multi-stream digital broadcasting system
AU2820701A (en) * 2000-01-18 2001-07-31 National Research Council Of Canada Parallel correlator archtitecture
CN1154975C (zh) * 2000-03-15 2004-06-23 皇家菲利浦电子有限公司 用于声频编码的拉盖尔函数
US7330814B2 (en) * 2000-05-22 2008-02-12 Texas Instruments Incorporated Wideband speech coding with modulated noise highband excitation system and method
JP3538122B2 (ja) * 2000-06-14 2004-06-14 株式会社ケンウッド 周波数補間装置、周波数補間方法及び記録媒体
JP3576941B2 (ja) * 2000-08-25 2004-10-13 株式会社ケンウッド 周波数間引き装置、周波数間引き方法及び記録媒体
US20020049586A1 (en) * 2000-09-11 2002-04-25 Kousuke Nishio Audio encoder, audio decoder, and broadcasting system
US20020087315A1 (en) * 2000-12-29 2002-07-04 Lee Victor Wai Leung Computer-implemented multi-scanning language method and system
US6845170B2 (en) * 2001-01-11 2005-01-18 Sony Corporation Watermark resistant to resizing and rotation
US20020128839A1 (en) * 2001-01-12 2002-09-12 Ulf Lindgren Speech bandwidth extension
CN1327409C (zh) * 2001-01-19 2007-07-18 皇家菲利浦电子有限公司 提供信号重建的宽带音频信号发送机、接收机、系统和方法
US6865273B2 (en) * 2002-06-05 2005-03-08 Sony Corporation Method and apparatus to detect watermark that are resistant to resizing, rotation and translation
US7602936B2 (en) * 2001-03-08 2009-10-13 Sony Corporation Method to make wavelet watermarks resistant to affine transformations
US7711123B2 (en) * 2001-04-13 2010-05-04 Dolby Laboratories Licensing Corporation Segmenting audio signals into auditory events
WO2003019533A1 (en) * 2001-08-24 2003-03-06 Kabushiki Kaisha Kenwood Device and method for interpolating frequency components of signal adaptively
ATE363121T1 (de) * 2001-10-25 2007-06-15 Koninkl Philips Electronics Nv Verfahren zur übertragung breitbandiger tonsignale über einen übertragungskanal mit verminderter bandbreite
JP3926726B2 (ja) * 2001-11-14 2007-06-06 松下電器産業株式会社 符号化装置および復号化装置
JP4308229B2 (ja) * 2001-11-14 2009-08-05 パナソニック株式会社 符号化装置および復号化装置
US20030108108A1 (en) * 2001-11-15 2003-06-12 Takashi Katayama Decoder, decoding method, and program distribution medium therefor
WO2003042648A1 (en) * 2001-11-16 2003-05-22 Matsushita Electric Industrial Co., Ltd. Speech encoder, speech decoder, speech encoding method, and speech decoding method
US7433489B2 (en) * 2001-11-28 2008-10-07 Sony Electronics Inc. Method to ensure temporal synchronization and reduce complexity in the detection of temporal watermarks
US7317811B2 (en) * 2001-11-28 2008-01-08 Sony Electronics Inc. Method to decode temporal watermarks in compressed video
JP4317355B2 (ja) * 2001-11-30 2009-08-19 パナソニック株式会社 符号化装置、符号化方法、復号化装置、復号化方法および音響データ配信システム
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
EP1492292B1 (en) * 2002-03-20 2010-12-29 Dounaev, Igor Borisovich Methods and systems for digital data transmission
US7921445B2 (en) * 2002-06-06 2011-04-05 International Business Machines Corporation Audio/video speedup system and method in a server-client streaming architecture
TWI288915B (en) * 2002-06-17 2007-10-21 Dolby Lab Licensing Corp Improved audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
KR100462615B1 (ko) 2002-07-11 2004-12-20 삼성전자주식회사 적은 계산량으로 고주파수 성분을 복원하는 오디오 디코딩방법 및 장치
US7376280B2 (en) * 2002-07-14 2008-05-20 Apple Inc Video encoding and decoding
US7379956B2 (en) * 2002-07-14 2008-05-27 Apple Inc. Encoding and decoding data arrays
JP4227772B2 (ja) * 2002-07-19 2009-02-18 日本電気株式会社 オーディオ復号装置と復号方法およびプログラム
JP4313993B2 (ja) * 2002-07-19 2009-08-12 パナソニック株式会社 オーディオ復号化装置およびオーディオ復号化方法
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
JP3881943B2 (ja) * 2002-09-06 2007-02-14 松下電器産業株式会社 音響符号化装置及び音響符号化方法
TW564375B (en) * 2002-09-17 2003-12-01 Ind Tech Res Inst Amplitude phase shift information embedding and detecting method based on phase features
US7191136B2 (en) * 2002-10-01 2007-03-13 Ibiquity Digital Corporation Efficient coding of high frequency signal information in a signal using a linear/non-linear prediction model based on a low pass baseband
KR100501930B1 (ko) * 2002-11-29 2005-07-18 삼성전자주식회사 적은 계산량으로 고주파수 성분을 복원하는 오디오 디코딩방법 및 장치
JP4041385B2 (ja) * 2002-11-29 2008-01-30 株式会社ケンウッド 信号補間装置、信号補間方法及びプログラム
AU2002953284A0 (en) * 2002-12-12 2003-01-02 Lake Technology Limited Digital multirate filtering
KR100524065B1 (ko) * 2002-12-23 2005-10-26 삼성전자주식회사 시간-주파수 상관성을 이용한 개선된 오디오 부호화및/또는 복호화 방법과 그 장치
US20040252772A1 (en) * 2002-12-31 2004-12-16 Markku Renfors Filter bank based signal processing
TWI220753B (en) * 2003-01-20 2004-09-01 Mediatek Inc Method for determining quantization parameters
JP4380174B2 (ja) * 2003-02-27 2009-12-09 沖電気工業株式会社 帯域補正装置
RU2244386C2 (ru) * 2003-03-28 2005-01-10 Корпорация "Самсунг Электроникс" Способ восстановления высокочастотной составляющей аудиосигнала и устройство для его реализации
US20070038439A1 (en) * 2003-04-17 2007-02-15 Koninklijke Philips Electronics N.V. Groenewoudseweg 1 Audio signal generation
JP2005010621A (ja) * 2003-06-20 2005-01-13 Matsushita Electric Ind Co Ltd 音声帯域拡張装置及び帯域拡張方法
JP2005024756A (ja) * 2003-06-30 2005-01-27 Toshiba Corp 復号処理回路および移動端末装置
FI118550B (fi) * 2003-07-14 2007-12-14 Nokia Corp Parannettu eksitaatio ylemmän kaistan koodaukselle koodekissa, joka käyttää kaistojen jakoon perustuvia koodausmenetelmiä
US7724827B2 (en) * 2003-09-07 2010-05-25 Microsoft Corporation Multi-layer run level encoding and decoding
US7844992B2 (en) * 2003-09-10 2010-11-30 Thomson Licensing Video on demand server system and method
EP2264700A1 (en) 2003-09-16 2010-12-22 Panasonic Corporation Coding apparatus and decoding apparatus
US7844451B2 (en) * 2003-09-16 2010-11-30 Panasonic Corporation Spectrum coding/decoding apparatus and method for reducing distortion of two band spectrums
US7461003B1 (en) * 2003-10-22 2008-12-02 Tellabs Operations, Inc. Methods and apparatus for improving the quality of speech signals
EP2221808B1 (en) * 2003-10-23 2012-07-11 Panasonic Corporation Spectrum coding apparatus, spectrum decoding apparatus, acoustic signal transmission apparatus, acoustic signal reception apparatus and methods thereof
US7519538B2 (en) 2003-10-30 2009-04-14 Koninklijke Philips Electronics N.V. Audio signal encoding or decoding
US7672838B1 (en) * 2003-12-01 2010-03-02 The Trustees Of Columbia University In The City Of New York Systems and methods for speech recognition using frequency domain linear prediction polynomials to form temporal and spectral envelopes from frequency domain representations of signals
KR100587953B1 (ko) * 2003-12-26 2006-06-08 한국전자통신연구원 대역-분할 광대역 음성 코덱에서의 고대역 오류 은닉 장치 및 그를 이용한 비트스트림 복호화 시스템
US6980933B2 (en) * 2004-01-27 2005-12-27 Dolby Laboratories Licensing Corporation Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
WO2005083677A2 (en) * 2004-02-18 2005-09-09 Philips Intellectual Property & Standards Gmbh Method and system for generating training data for an automatic speech recogniser
JP4546464B2 (ja) * 2004-04-27 2010-09-15 パナソニック株式会社 スケーラブル符号化装置、スケーラブル復号化装置、およびこれらの方法
KR100985364B1 (ko) 2004-04-30 2010-10-04 힐크레스트 래보래토리스, 인크. 3ｄ 포인팅 장치 및 방법
US8629836B2 (en) 2004-04-30 2014-01-14 Hillcrest Laboratories, Inc. 3D pointing devices with orientation compensation and improved usability
CN101656076B (zh) * 2004-05-14 2013-01-23 松下电器产业株式会社 音频编码装置、音频编码方法以及通信终端和基站装置
EP2991075B1 (en) 2004-05-14 2018-08-01 Panasonic Intellectual Property Corporation of America Speech coding method and speech coding apparatus
WO2005112001A1 (ja) 2004-05-19 2005-11-24 Matsushita Electric Industrial Co., Ltd. 符号化装置、復号化装置、およびこれらの方法
KR100608062B1 (ko) * 2004-08-04 2006-08-02 삼성전자주식회사 오디오 데이터의 고주파수 복원 방법 및 그 장치
KR100640893B1 (ko) * 2004-09-07 2006-11-02 엘지전자 주식회사 음성 인식용 베이스밴드 모뎀 및 이동통신용 단말기
US7630902B2 (en) * 2004-09-17 2009-12-08 Digital Rise Technology Co., Ltd. Apparatus and methods for digital audio coding using codebook application ranges
CN1969318B (zh) * 2004-09-17 2011-11-02 松下电器产业株式会社 音频编码装置、解码装置以及方法
US7620675B1 (en) * 2004-09-23 2009-11-17 Texas Instruments Incorporated Image and audio transform methods
JP4618634B2 (ja) * 2004-10-07 2011-01-26 Ｋｄｄｉ株式会社 圧縮オーディオデータ処理方法
JP4815780B2 (ja) * 2004-10-20 2011-11-16 ヤマハ株式会社 オーバーサンプリングシステム、デコードｌｓｉ、およびオーバーサンプリング方法
US7555081B2 (en) * 2004-10-29 2009-06-30 Harman International Industries, Incorporated Log-sampled filter system
RU2500043C2 (ru) * 2004-11-05 2013-11-27 Панасоник Корпорэйшн Кодер, декодер, способ кодирования и способ декодирования
WO2006058129A2 (en) 2004-11-23 2006-06-01 Hillcrest Laboratories, Inc. Semantic gaming and application transformation
KR100657916B1 (ko) * 2004-12-01 2006-12-14 삼성전자주식회사 주파수 대역간의 유사도를 이용한 오디오 신호 처리 장치및 방법
US20060143013A1 (en) * 2004-12-28 2006-06-29 Broadcom Corporation Method and system for playing audio at an accelerated rate using multiresolution analysis technique keeping pitch constant
JP5224017B2 (ja) * 2005-01-11 2013-07-03 日本電気株式会社 オーディオ符号化装置、オーディオ符号化方法およびオーディオ符号化プログラム
US20060187770A1 (en) * 2005-02-23 2006-08-24 Broadcom Corporation Method and system for playing audio at a decelerated rate using multiresolution analysis technique keeping pitch constant
WO2006090852A1 (ja) * 2005-02-24 2006-08-31 Matsushita Electric Industrial Co., Ltd. データ再生装置
JP4761506B2 (ja) * 2005-03-01 2011-08-31 国立大学法人北陸先端科学技術大学院大学 音声処理方法と装置及びプログラム並びに音声システム
JP4645241B2 (ja) * 2005-03-10 2011-03-09 ヤマハ株式会社 音声処理装置およびプログラム
KR100707186B1 (ko) * 2005-03-24 2007-04-13 삼성전자주식회사 오디오 부호화 및 복호화 장치와 그 방법 및 기록 매체
SG163556A1 (en) 2005-04-01 2010-08-30 Qualcomm Inc Systems, methods, and apparatus for wideband speech coding
KR100818268B1 (ko) * 2005-04-14 2008-04-02 삼성전자주식회사 오디오 데이터 부호화 및 복호화 장치와 방법
US7627481B1 (en) * 2005-04-19 2009-12-01 Apple Inc. Adapting masking thresholds for encoding a low frequency transient signal in audio data
US8086451B2 (en) * 2005-04-20 2011-12-27 Qnx Software Systems Co. System for improving speech intelligibility through high frequency compression
US7813931B2 (en) * 2005-04-20 2010-10-12 QNX Software Systems, Co. System for improving speech quality and intelligibility with bandwidth compression/expansion
US8249861B2 (en) 2005-04-20 2012-08-21 Qnx Software Systems Limited High frequency compression integration
US9043214B2 (en) 2005-04-22 2015-05-26 Qualcomm Incorporated Systems, methods, and apparatus for gain factor attenuation
EP1742509B1 (en) 2005-07-08 2013-08-14 Oticon A/S A system and method for eliminating feedback and noise in a hearing device
DE102005032724B4 (de) * 2005-07-13 2009-10-08 Siemens Ag Verfahren und Vorrichtung zur künstlichen Erweiterung der Bandbreite von Sprachsignalen
US7562021B2 (en) * 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
US7630882B2 (en) * 2005-07-15 2009-12-08 Microsoft Corporation Frequency segmentation to obtain bands for efficient coding of digital media
US20070030923A1 (en) * 2005-08-02 2007-02-08 Xiaoming Yu High accuracy non data-aided frequency estimator for M-ary phase shift keying modulation
US8599925B2 (en) * 2005-08-12 2013-12-03 Microsoft Corporation Efficient coding and decoding of transform blocks
JP4715385B2 (ja) * 2005-08-19 2011-07-06 株式会社ケンウッド 補間装置、オーディオ再生装置、補間方法および補間プログラム
JP4627548B2 (ja) * 2005-09-08 2011-02-09 パイオニア株式会社 帯域拡張装置、帯域拡張方法および帯域拡張プログラム
US20070118361A1 (en) * 2005-10-07 2007-05-24 Deepen Sinha Window apparatus and method
US7953605B2 (en) * 2005-10-07 2011-05-31 Deepen Sinha Method and apparatus for audio encoding and decoding using wideband psychoacoustic modeling and bandwidth extension
JP5142723B2 (ja) * 2005-10-14 2013-02-13 パナソニック株式会社 スケーラブル符号化装置、スケーラブル復号装置、およびこれらの方法
KR100739180B1 (ko) * 2005-10-20 2007-07-13 엘지전자 주식회사 이동 통신 단말기의 멀티미디어 데이터를 송수신하는 장치및 그 방법
CN101297356B (zh) * 2005-11-04 2011-11-09 诺基亚公司 用于音频压缩的方法和设备
EP2381440A3 (en) * 2005-11-30 2012-03-21 Panasonic Corporation Subband coding apparatus and method of coding subband
US7536299B2 (en) * 2005-12-19 2009-05-19 Dolby Laboratories Licensing Corporation Correlating and decorrelating transforms for multiple description coding systems
TWI311856B (en) * 2006-01-04 2009-07-01 Quanta Comp Inc Synthesis subband filtering method and apparatus
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
KR100739786B1 (ko) * 2006-01-20 2007-07-13 삼성전자주식회사 다중 채널 디지털 앰프 시스템 및 그 신호 처리 방법
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
WO2007098258A1 (en) * 2006-02-24 2007-08-30 Neural Audio Corporation Audio codec conditioning system and method
US7590523B2 (en) * 2006-03-20 2009-09-15 Mindspeed Technologies, Inc. Speech post-processing using MDCT coefficients
JP4976381B2 (ja) * 2006-03-31 2012-07-18 パナソニック株式会社 音声符号化装置、音声復号化装置、およびこれらの方法
US8392176B2 (en) * 2006-04-10 2013-03-05 Qualcomm Incorporated Processing of excitation in audio coding and decoding
JP5190359B2 (ja) * 2006-05-10 2013-04-24 パナソニック株式会社 符号化装置及び符号化方法
WO2007148925A1 (en) 2006-06-21 2007-12-27 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
WO2008001318A2 (en) * 2006-06-29 2008-01-03 Nxp B.V. Noise synthesis
MY151651A (en) * 2006-07-04 2014-06-30 Dolby Int Ab Filter compressor and method for manufacturing compressed subband filter impulse responses
EP1881485A1 (en) * 2006-07-18 2008-01-23 Deutsche Thomson-Brandt Gmbh Audio bitstream data structure arrangement of a lossy encoded signal together with lossless encoded extension data for said signal
EP2054880B1 (en) * 2006-08-15 2011-04-20 Broadcom Corporation Time-warping of decoded audio signal after packet loss
JP2008066851A (ja) * 2006-09-05 2008-03-21 Sony Corp 情報処理装置および情報処理方法、記録媒体、並びに、プログラム
CN101140759B (zh) * 2006-09-08 2010-05-12 华为技术有限公司 语音或音频信号的带宽扩展方法及系统
US8417532B2 (en) * 2006-10-18 2013-04-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
US8041578B2 (en) * 2006-10-18 2011-10-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
US8126721B2 (en) * 2006-10-18 2012-02-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
JP5141180B2 (ja) * 2006-11-09 2013-02-13 ソニー株式会社 周波数帯域拡大装置及び周波数帯域拡大方法、再生装置及び再生方法、並びに、プログラム及び記録媒体
US8295507B2 (en) * 2006-11-09 2012-10-23 Sony Corporation Frequency band extending apparatus, frequency band extending method, player apparatus, playing method, program and recording medium
JP5103880B2 (ja) * 2006-11-24 2012-12-19 富士通株式会社 復号化装置および復号化方法
EP1927981B1 (en) * 2006-12-01 2013-02-20 Nuance Communications, Inc. Spectral refinement of audio signals
JPWO2008084688A1 (ja) * 2006-12-27 2010-04-30 パナソニック株式会社 符号化装置、復号装置及びこれらの方法
KR101379263B1 (ko) * 2007-01-12 2014-03-28 삼성전자주식회사 대역폭 확장 복호화 방법 및 장치
EP1947644B1 (en) 2007-01-18 2019-06-19 Nuance Communications, Inc. Method and apparatus for providing an acoustic signal with extended band-width
US7852745B2 (en) * 2007-03-02 2010-12-14 Signalink Technologies Inc. Non-orthogonal frequency-division multiplexed communication through a non-linear transmission medium
GB0704622D0 (en) * 2007-03-09 2007-04-18 Skype Ltd Speech coding system and method
US8983830B2 (en) * 2007-03-30 2015-03-17 Panasonic Intellectual Property Corporation Of America Stereo signal encoding device including setting of threshold frequencies and stereo signal encoding method including setting of threshold frequencies
US7761290B2 (en) 2007-06-15 2010-07-20 Microsoft Corporation Flexible frequency and time partitioning in perceptual transform coding of audio
US7774205B2 (en) * 2007-06-15 2010-08-10 Microsoft Corporation Coding of sparse digital media spectral data
JP5098492B2 (ja) * 2007-07-30 2012-12-12 ソニー株式会社 信号処理装置及び信号処理方法、並びにプログラム
US8428957B2 (en) 2007-08-24 2013-04-23 Qualcomm Incorporated Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands
US20090198500A1 (en) * 2007-08-24 2009-08-06 Qualcomm Incorporated Temporal masking in audio coding based on spectral dynamics in frequency sub-bands
WO2009029035A1 (en) * 2007-08-27 2009-03-05 Telefonaktiebolaget Lm Ericsson (Publ) Improved transform coding of speech and audio signals
US8315856B2 (en) * 2007-10-24 2012-11-20 Red Shift Company, Llc Identify features of speech based on events in a signal representing spoken sounds
WO2009055715A1 (en) * 2007-10-24 2009-04-30 Red Shift Company, Llc Producing time uniform feature vectors of speech
WO2009054228A1 (ja) * 2007-10-26 2009-04-30 D & M Holdings Inc. オーディオ信号補間装置及びオーディオ信号補間方法
CN101842832B (zh) * 2007-10-31 2012-11-07 松下电器产业株式会社 编码装置和解码装置
EP2629293A3 (en) * 2007-11-02 2014-01-08 Huawei Technologies Co., Ltd. Method and apparatus for audio decoding
EP2227682A1 (en) * 2007-11-06 2010-09-15 Nokia Corporation An encoder
US20100274555A1 (en) * 2007-11-06 2010-10-28 Lasse Laaksonen Audio Coding Apparatus and Method Thereof
EP2212884B1 (en) * 2007-11-06 2013-01-02 Nokia Corporation An encoder
KR100970446B1 (ko) * 2007-11-21 2010-07-16 한국전자통신연구원 주파수 확장을 위한 가변 잡음레벨 결정 장치 및 그 방법
EP2229677B1 (en) 2007-12-18 2015-09-16 LG Electronics Inc. A method and an apparatus for processing an audio signal
US20100280833A1 (en) * 2007-12-27 2010-11-04 Panasonic Corporation Encoding device, decoding device, and method thereof
EP2077551B1 (en) * 2008-01-04 2011-03-02 Dolby Sweden AB Audio encoder and decoder
KR101413968B1 (ko) * 2008-01-29 2014-07-01 삼성전자주식회사 오디오 신호의 부호화, 복호화 방법 및 장치
US20090203395A1 (en) * 2008-02-08 2009-08-13 Sony Ericsson Mobile Communications Ab Amplitude modulation radio transmission with extended bandwidth
EP3296992B1 (en) * 2008-03-20 2021-09-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for modifying a parameterized representation
JP2009300707A (ja) * 2008-06-13 2009-12-24 Sony Corp 情報処理装置および方法、並びにプログラム
US8909361B2 (en) * 2008-06-19 2014-12-09 Broadcom Corporation Method and system for processing high quality audio in a hardware audio codec for audio transmission
US9378751B2 (en) * 2008-06-19 2016-06-28 Broadcom Corporation Method and system for digital gain processing in a hardware audio CODEC for audio transmission
JP5224219B2 (ja) * 2008-06-26 2013-07-03 独立行政法人科学技術振興機構 オーディオ信号圧縮装置、オーディオ信号圧縮方法、オーディオ信号復号装置及びオーディオ信号復号方法
US8010313B2 (en) 2008-06-27 2011-08-30 Movea Sa Hand held pointing device with roll compensation
US20140184509A1 (en) 2013-01-02 2014-07-03 Movea Sa Hand held pointing device with roll compensation
MY163454A (en) * 2008-07-11 2017-09-15 Frauenhofer-Gesellschaft Zur Apparatus or method for generating a bandwidth extended signal
MY153594A (en) * 2008-07-11 2015-02-27 Fraunhofer Ges Forschung An apparatus and a method for calculating a number of spectral envelopes
KR101756834B1 (ko) * 2008-07-14 2017-07-12 삼성전자주식회사 오디오/스피치 신호의 부호화 및 복호화 방법 및 장치
US8326640B2 (en) * 2008-08-26 2012-12-04 Broadcom Corporation Method and system for multi-band amplitude estimation and gain control in an audio CODEC
WO2010028297A1 (en) 2008-09-06 2010-03-11 GH Innovation, Inc. Selective bandwidth extension
WO2010028299A1 (en) * 2008-09-06 2010-03-11 Huawei Technologies Co., Ltd. Noise-feedback for spectral envelope quantization
US8352279B2 (en) * 2008-09-06 2013-01-08 Huawei Technologies Co., Ltd. Efficient temporal envelope coding approach by prediction between low band signal and high band signal
WO2010028292A1 (en) * 2008-09-06 2010-03-11 Huawei Technologies Co., Ltd. Adaptive frequency prediction
US8515747B2 (en) * 2008-09-06 2013-08-20 Huawei Technologies Co., Ltd. Spectrum harmonic/noise sharpness control
US8577673B2 (en) * 2008-09-15 2013-11-05 Huawei Technologies Co., Ltd. CELP post-processing for music signals
WO2010031003A1 (en) * 2008-09-15 2010-03-18 Huawei Technologies Co., Ltd. Adding second enhancement layer to celp based core layer
US8548816B1 (en) * 2008-12-01 2013-10-01 Marvell International Ltd. Efficient scalefactor estimation in advanced audio coding and MP3 encoder
CN101751925B (zh) * 2008-12-10 2011-12-21 华为技术有限公司 一种语音解码方法及装置
AU2013203159B2 (en) * 2008-12-15 2015-09-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder and bandwidth extension decoder
WO2010070770A1 (ja) * 2008-12-19 2010-06-24 富士通株式会社 音声帯域拡張装置及び音声帯域拡張方法
US20100191534A1 (en) * 2009-01-23 2010-07-29 Qualcomm Incorporated Method and apparatus for compression or decompression of digital signals
EP2211339B1 (en) * 2009-01-23 2017-05-31 Oticon A/s Listening system
EP2214165A3 (en) * 2009-01-30 2010-09-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for manipulating an audio signal comprising a transient event
EP2394442B1 (en) 2009-02-06 2016-12-21 Oticon A/S Spectral band substitution to avoid howls and sub-oscillation
TWI716833B (zh) * 2009-02-18 2021-01-21 瑞典商杜比國際公司 用於高頻重建或參數立體聲之複指數調變濾波器組
BR122019023877B1 (pt) 2009-03-17 2021-08-17 Dolby International Ab Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
JP5267257B2 (ja) * 2009-03-23 2013-08-21 沖電気工業株式会社 音声ミキシング装置、方法及びプログラム、並びに、音声会議システム
JP4921611B2 (ja) * 2009-04-03 2012-04-25 株式会社エヌ・ティ・ティ・ドコモ 音声復号装置、音声復号方法、及び音声復号プログラム
JP4932917B2 (ja) 2009-04-03 2012-05-16 株式会社エヌ・ティ・ティ・ドコモ 音声復号装置、音声復号方法、及び音声復号プログラム
CN101521014B (zh) * 2009-04-08 2011-09-14 武汉大学 音频带宽扩展编解码装置
AU2013207549B2 (en) * 2009-04-09 2015-06-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
US8971551B2 (en) 2009-09-18 2015-03-03 Dolby International Ab Virtual bass synthesis using harmonic transposition
AU2013263712B2 (en) * 2009-05-27 2015-11-12 Dolby International Ab Efficient Combined Harmonic Transposition
JP5365380B2 (ja) * 2009-07-07 2013-12-11 ソニー株式会社 音響信号処理装置、その処理方法およびプログラム
JP5031006B2 (ja) * 2009-09-04 2012-09-19 パナソニック株式会社 スケーラブル復号化装置及びスケーラブル復号化方法
EP2306456A1 (en) * 2009-09-04 2011-04-06 Thomson Licensing Method for decoding an audio signal that has a base layer and an enhancement layer
JP5754899B2 (ja) 2009-10-07 2015-07-29 ソニー株式会社 復号装置および方法、並びにプログラム
CN102754159B (zh) 2009-10-19 2016-08-24 杜比国际公司 指示音频对象的部分的元数据时间标记信息
EP2486564B1 (en) * 2009-10-21 2014-04-09 Dolby International AB Apparatus and method for generating high frequency audio signal using adaptive oversampling
US20110257978A1 (en) * 2009-10-23 2011-10-20 Brainlike, Inc. Time Series Filtering, Data Reduction and Voice Recognition in Communication Device
TWI484473B (zh) 2009-10-30 2015-05-11 Dolby Int Ab 用於從編碼位元串流擷取音訊訊號之節奏資訊、及估算音訊訊號之知覺顯著節奏的方法及系統
US8929568B2 (en) 2009-11-19 2015-01-06 Telefonaktiebolaget L M Ericsson (Publ) Bandwidth extension of a low band audio signal
CA2780962C (en) * 2009-11-19 2017-09-05 Telefonaktiebolaget L M Ericsson (Publ) Methods and arrangements for loudness and sharpness compensation in audio codecs
EP2502230B1 (en) * 2009-11-19 2014-05-21 Telefonaktiebolaget L M Ericsson (PUBL) Improved excitation signal bandwidth extension
MY166998A (en) * 2009-12-16 2018-07-27 Dolby Int Ab Sbr bitstream parameter downmix
EP2362376A3 (en) * 2010-02-26 2011-11-02 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for modifying an audio signal using envelope shaping
DK2375782T3 (en) * 2010-04-09 2019-03-18 Oticon As Improvements in sound perception by using frequency transposing by moving the envelope
JP5850216B2 (ja) 2010-04-13 2016-02-03 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
JP5609737B2 (ja) 2010-04-13 2014-10-22 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
US8452826B2 (en) * 2010-05-04 2013-05-28 Raytheon Applied Signal Technology, Inc. Digital frequency channelizer
US8751225B2 (en) 2010-05-12 2014-06-10 Electronics And Telecommunications Research Institute Apparatus and method for coding signal in a communication system
US8600737B2 (en) * 2010-06-01 2013-12-03 Qualcomm Incorporated Systems, methods, apparatus, and computer program products for wideband speech coding
US8762158B2 (en) * 2010-08-06 2014-06-24 Samsung Electronics Co., Ltd. Decoding method and decoding apparatus therefor
JP5552988B2 (ja) * 2010-09-27 2014-07-16 富士通株式会社 音声帯域拡張装置および音声帯域拡張方法
US8924200B2 (en) * 2010-10-15 2014-12-30 Motorola Mobility Llc Audio signal bandwidth extension in CELP-based speech coder
US8868432B2 (en) * 2010-10-15 2014-10-21 Motorola Mobility Llc Audio signal bandwidth extension in CELP-based speech coder
JP5707842B2 (ja) 2010-10-15 2015-04-30 ソニー株式会社 符号化装置および方法、復号装置および方法、並びにプログラム
KR20120046627A (ko) * 2010-11-02 2012-05-10 삼성전자주식회사 화자 적응 방법 및 장치
TWI412022B (zh) * 2010-12-30 2013-10-11 Univ Nat Cheng Kung 遞迴式離散餘弦正、逆轉換之系統
JP5743137B2 (ja) 2011-01-14 2015-07-01 ソニー株式会社 信号処理装置および方法、並びにプログラム
CA2827266C (en) 2011-02-14 2017-02-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result
BR112013020587B1 (pt) 2011-02-14 2021-03-09 Fraunhofer-Gesellschaft Zur Forderung De Angewandten Forschung E.V. esquema de codificação com base em previsão linear utilizando modelagem de ruído de domínio espectral
BR112013020700B1 (pt) 2011-02-14 2021-07-13 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Codificação e decodificação de posições de pulso de faixas de um sinal de áudio
SG185519A1 (en) * 2011-02-14 2012-12-28 Fraunhofer Ges Forschung Information signal representation using lapped transform
TWI469136B (zh) 2011-02-14 2015-01-11 Fraunhofer Ges Forschung 在一頻譜域中用以處理已解碼音訊信號之裝置及方法
DK3567589T3 (da) * 2011-02-18 2022-05-09 Ntt Docomo Inc Talekoder og talekodningsfremgangsmåde
PT2697795E (pt) 2011-04-15 2015-09-25 Ericsson Telefon Ab L M Utilização conjunta adaptativa de taxas de ganho/forma
US9536534B2 (en) * 2011-04-20 2017-01-03 Panasonic Intellectual Property Corporation Of America Speech/audio encoding apparatus, speech/audio decoding apparatus, and methods thereof
EP2709103B1 (en) * 2011-06-09 2015-10-07 Panasonic Intellectual Property Corporation of America Voice coding device, voice decoding device, voice coding method and voice decoding method
US9070361B2 (en) * 2011-06-10 2015-06-30 Google Technology Holdings LLC Method and apparatus for encoding a wideband speech signal utilizing downmixing of a highband component
DE102011106034A1 (de) * 2011-06-30 2013-01-03 Zte Corporation Verfahren und Vorrichtung zur Spektralbandreplikation und Verfahren und System zur Audiodecodierung
US20130006644A1 (en) * 2011-06-30 2013-01-03 Zte Corporation Method and device for spectral band replication, and method and system for audio decoding
EP2562751B1 (en) 2011-08-22 2014-06-11 Svox AG Temporal interpolation of adjacent spectra
JP6037156B2 (ja) 2011-08-24 2016-11-30 ソニー株式会社 符号化装置および方法、並びにプログラム
JP5975243B2 (ja) 2011-08-24 2016-08-23 ソニー株式会社 符号化装置および方法、並びにプログラム
US8774308B2 (en) * 2011-11-01 2014-07-08 At&T Intellectual Property I, L.P. Method and apparatus for improving transmission of data on a bandwidth mismatched channel
US8781023B2 (en) * 2011-11-01 2014-07-15 At&T Intellectual Property I, L.P. Method and apparatus for improving transmission of data on a bandwidth expanded channel
EP2777042B1 (en) 2011-11-11 2019-08-14 Dolby International AB Upsampling using oversampled sbr
JP5817499B2 (ja) 2011-12-15 2015-11-18 富士通株式会社 復号装置、符号化装置、符号化復号システム、復号方法、符号化方法、復号プログラム、及び符号化プログラム
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
US8712076B2 (en) 2012-02-08 2014-04-29 Dolby Laboratories Licensing Corporation Post-processing including median filtering of noise suppression gains
US9905236B2 (en) 2012-03-23 2018-02-27 Dolby Laboratories Licensing Corporation Enabling sampling rate diversity in a voice communication system
US8965290B2 (en) * 2012-03-29 2015-02-24 General Electric Company Amplitude enhanced frequency modulation
JP5997592B2 (ja) * 2012-04-27 2016-09-28 株式会社Ｎｔｔドコモ 音声復号装置
EP2682941A1 (de) * 2012-07-02 2014-01-08 Technische Universität Ilmenau Vorrichtung, Verfahren und Computerprogramm für frei wählbare Frequenzverschiebungen in der Subband-Domäne
JP6065452B2 (ja) * 2012-08-14 2017-01-25 富士通株式会社 データ埋め込み装置及び方法、データ抽出装置及び方法、並びにプログラム
US9129600B2 (en) * 2012-09-26 2015-09-08 Google Technology Holdings LLC Method and apparatus for encoding an audio signal
JP6146069B2 (ja) 2013-03-18 2017-06-14 富士通株式会社 データ埋め込み装置及び方法、データ抽出装置及び方法、並びにプログラム
CN117253497A (zh) * 2013-04-05 2023-12-19 杜比国际公司 音频信号的解码方法和解码器、介质以及编码方法
CN110010140B (zh) * 2013-04-05 2023-04-18 杜比国际公司 立体声音频编码器和解码器
US8804971B1 (en) 2013-04-30 2014-08-12 Dolby International Ab Hybrid encoding of higher frequency and downmixed low frequency content of multichannel audio
CA2914771C (en) 2013-06-10 2018-07-17 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus and method for audio signal envelope encoding, processing and decoding by modelling a cumulative sum representation employing distribution quantization and coding
KR101789085B1 (ko) * 2013-06-10 2017-11-20 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. 분포 양자화 및 코딩을 사용하는 오디오 신호 엔벨로프의 분할에 의한 오디오 신호 엔벨로프 인코딩, 처리 및 디코딩을 위한 장치 및 방법
DK2822263T3 (da) 2013-07-05 2019-06-17 Sennheiser Communications As Kommunikationsanordning med ekkoundertrykkelse
EP2830055A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Context-based entropy coding of sample values of a spectral envelope
EP2830059A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Noise filling energy adjustment
US9875746B2 (en) 2013-09-19 2018-01-23 Sony Corporation Encoding device and method, decoding device and method, and program
EP2871641A1 (en) * 2013-11-12 2015-05-13 Dialog Semiconductor B.V. Enhancement of narrowband audio signals using a single sideband AM modulation
WO2015077641A1 (en) * 2013-11-22 2015-05-28 Qualcomm Incorporated Selective phase compensation in high band coding
BR112016014476B1 (pt) 2013-12-27 2021-11-23 Sony Corporation Aparelho e método de decodificação, e, meio de armazenamento legível por computador
CN103795420B (zh) * 2014-02-10 2017-04-05 南京邮电大学 一种基于分段的sbr多属性数据压缩方法
MX361028B (es) 2014-02-28 2018-11-26 Fraunhofer Ges Forschung Dispositivo de decodificación, dispositivo de codificación, método de decodificación, método de codificación, dispositivo de terminal y dispositivo de estación de base.
ES2975073T3 (es) 2014-03-31 2024-07-03 Fraunhofer Ges Forschung Codificador, descodificador, procedimiento de codificación, procedimiento de descodificación y programa
ES2837107T3 (es) * 2015-02-26 2021-06-29 Fraunhofer Ges Forschung Aparato y método para procesar una señal de audio para obtener una señal de audio procesada usando una envolvente en el dominio del tiempo objetivo
WO2016142002A1 (en) 2015-03-09 2016-09-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signal
TWI890652B (zh) * 2015-03-13 2025-07-11 瑞典商杜比國際公司 音訊處理單元、用於將經編碼的音訊位元流解碼之方法以及非暫態電腦可讀媒體
TWI732403B (zh) * 2015-03-13 2021-07-01 瑞典商杜比國際公司 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流
US10129659B2 (en) 2015-05-08 2018-11-13 Doly International AB Dialog enhancement complemented with frequency transposition
US9837089B2 (en) * 2015-06-18 2017-12-05 Qualcomm Incorporated High-band signal generation
US10847170B2 (en) 2015-06-18 2020-11-24 Qualcomm Incorporated Device and method for generating a high-band signal from non-linearly processed sub-ranges
WO2017080835A1 (en) * 2015-11-10 2017-05-18 Dolby International Ab Signal-dependent companding system and method to reduce quantization noise
CN108496221B (zh) 2016-01-26 2020-01-21 杜比实验室特许公司 自适应量化
PT3417544T (pt) * 2016-02-17 2020-03-02 Fraunhofer Ges Forschung Pós-processador, pré-processador, codificador de áudio, descodificador de áudio e métodos relacionados para aprimoramento do processamento de transiente
JP6763194B2 (ja) * 2016-05-10 2020-09-30 株式会社Ｊｖｃケンウッド 符号化装置、復号装置、通信システム
EP3246923A1 (en) * 2016-05-20 2017-11-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing a multichannel audio signal
JP6621709B2 (ja) * 2016-05-26 2019-12-18 アルパイン株式会社 音声処理装置、音声処理方法及びコンピュータプログラム
CN107845385B (zh) 2016-09-19 2021-07-13 南宁富桂精密工业有限公司 信息隐藏的编解码方法及系统
GB201620317D0 (en) * 2016-11-30 2017-01-11 Microsoft Technology Licensing Llc Audio signal processing
CN109215675B (zh) * 2017-07-05 2021-08-03 苏州谦问万答吧教育科技有限公司 一种啸叫抑制的方法、装置及设备
US10714098B2 (en) * 2017-12-21 2020-07-14 Dolby Laboratories Licensing Corporation Selective forward error correction for spatial audio codecs
WO2019145955A1 (en) 2018-01-26 2019-08-01 Hadasit Medical Research Services & Development Limited Non-metallic magnetic resonance contrast agent
CA3098064A1 (en) 2018-04-25 2019-10-31 Dolby International Ab Integration of high frequency audio reconstruction techniques
IL313348B2 (en) 2018-04-25 2025-08-01 Dolby Int Ab Integration of high frequency reconstruction techniques with reduced post-processing delay
EP3671741A1 (en) * 2018-12-21 2020-06-24 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Audio processor and method for generating a frequency-enhanced audio signal using pulse processing
CN113113032B (zh) * 2020-01-10 2024-08-09 华为技术有限公司 一种音频编解码方法和音频编解码设备
CN115715413B (zh) 2020-06-11 2025-07-29 杜比实验室特许公司 空间可识别子带音频源的检测和提取方法、装置以及系统
US12482481B2 (en) * 2020-11-05 2025-11-25 Ntt, Inc. Sound signal high frequency compensation method, sound signal post processing method, sound signal decode method, apparatus thereof, program, and storage medium
WO2022097242A1 (ja) * 2020-11-05 2022-05-12 日本電信電話株式会社 音信号高域補償方法、音信号後処理方法、音信号復号方法、これらの装置、プログラム、および記録媒体
CN114641068B (zh) * 2020-12-15 2025-02-25 海能达通信股份有限公司 一种载波的分配方法及相关装置
CN113516987B (zh) * 2021-07-16 2024-04-12 科大讯飞股份有限公司 一种说话人识别方法、装置、存储介质及设备
US20240105190A1 (en) * 2022-09-22 2024-03-28 Google Llc Guiding ambisonic audio compression by deconvolving long window frequency analysis
US12255671B2 (en) * 2023-03-16 2025-03-18 International Business Machines Corporation Separable, intelligible, single channel voice communication
CN117636902B (zh) * 2023-07-31 2024-11-08 哈尔滨工程大学 用于极地冰下声源的背景噪声分离方法、装置及电子设备
US20250131936A1 (en) * 2023-10-24 2025-04-24 Cisco Technology, Inc. Receive-side audio processing for calls in a web conferencing client
DE102024101130B3 (de) 2024-01-16 2025-03-20 Cariad Se Verfahren zum Abspielen von digitalen Audiodaten in einem Kraftfahrzeug sowie Kraftfahrzeug

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150253A (en) * 1976-03-15 1979-04-17 Inter-Technology Exchange Ltd. Signal distortion circuit and method of use
US4667340A (en) * 1983-04-13 1987-05-19 Texas Instruments Incorporated Voice messaging system with pitch-congruent baseband coding
US4790016A (en) * 1985-11-14 1988-12-06 Gte Laboratories Incorporated Adaptive method and apparatus for coding speech
CA1220282A (en) * 1985-04-03 1987-04-07 Northern Telecom Limited Transmission of wideband speech signals
SE444750B (sv) * 1985-06-04 1986-04-28 Lars Gustaf Liljeryd Metod for att pa elektronisk veg astadkomma fortydligande av ljud- eller bildinformation jemte anordning for utforande av metoden
US4776014A (en) * 1986-09-02 1988-10-04 General Electric Company Method for pitch-aligned high-frequency regeneration in RELP vocoders
US4771465A (en) 1986-09-11 1988-09-13 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech sinusoidal vocoder with transmission of only subset of harmonics
US5127054A (en) 1988-04-29 1992-06-30 Motorola, Inc. Speech quality improvement for voice coders and synthesizers
US5040217A (en) 1989-10-18 1991-08-13 At&T Bell Laboratories Perceptual coding of audio signals
US5388181A (en) * 1990-05-29 1995-02-07 Anderson; David J. Digital audio compression system
US5436940A (en) * 1992-06-11 1995-07-25 Massachusetts Institute Of Technology Quadrature mirror filter banks and method
CA2106440C (en) * 1992-11-30 1997-11-18 Jelena Kovacevic Method and apparatus for reducing correlated errors in subband coding systems with quantizers
US5684920A (en) 1994-03-17 1997-11-04 Nippon Telegraph And Telephone Acoustic signal transform coding method and decoding method having a high efficiency envelope flattening method therein
US5717823A (en) * 1994-04-14 1998-02-10 Lucent Technologies Inc. Speech-rate modification for linear-prediction based analysis-by-synthesis speech coders
US5687340A (en) * 1995-05-16 1997-11-11 Hewlett-Packard Company Reduced area floating point processor control logic utilizing a decoder between a control unit and the FPU
US5692050A (en) * 1995-06-15 1997-11-25 Binaura Corporation Method and apparatus for spatially enhancing stereo and monophonic signals
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US5687191A (en) 1995-12-06 1997-11-11 Solana Technology Development Corporation Post-compression hidden data transport
US5822370A (en) * 1996-04-16 1998-10-13 Aura Systems, Inc. Compression/decompression for preservation of high fidelity speech quality at low bandwidth
US6049766A (en) * 1996-11-07 2000-04-11 Creative Technology Ltd. Time-domain time/pitch scaling of speech or audio signals with transient handling
JP3017715B2 (ja) * 1997-10-31 2000-03-13 松下電器産業株式会社 音声再生装置
EP0957579A1 (en) * 1998-05-15 1999-11-17 Deutsche Thomson-Brandt Gmbh Method and apparatus for sampling-rate conversion of audio signals
JP3546755B2 (ja) * 1999-05-06 2004-07-28 ヤマハ株式会社 リズム音源信号の時間軸圧伸方法及び装置
US6988066B2 (en) * 2001-10-04 2006-01-17 At&T Corp. Method of bandwidth extension for narrow-band speech

Cited By (667)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8036882B2 (en) 1999-01-27 2011-10-11 Coding Technologies Sweden Ab Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting
EP1408484A3 (en) * 1999-01-27 2004-10-20 Coding Technologies AB Enhancing perceptual quality of sbr (spectral band replication) and hfr (high frequency reconstruction) coding methods by adaptive noise-floor addition and noise substitution limiting
CN1838238B (zh) * 1999-01-27 2010-11-03 编码技术股份公司 一种用于增强信源解码器的设备
US9245533B2 (en) 1999-01-27 2016-01-26 Dolby International Ab Enhancing performance of spectral band replication and related high frequency reconstruction coding
WO2000045379A3 (en) * 1999-01-27 2000-12-07 Lars Gustaf Liljeryd Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting
JP2006085187A (ja) * 1999-01-27 2006-03-30 Coding Technologies Ab 情報源符号化システムの性能向上装置
US8935156B2 (en) 1999-01-27 2015-01-13 Dolby International Ab Enhancing performance of spectral band replication and related high frequency reconstruction coding
WO2000045378A3 (en) * 1999-01-27 2000-11-16 Lars Gustaf Liljeryd Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
US8036881B2 (en) 1999-01-27 2011-10-11 Coding Technologies Sweden Ab Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting
US8036880B2 (en) 1999-01-27 2011-10-11 Coding Technologies Sweden Ab Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting
EP1617418A3 (en) * 1999-01-27 2006-07-26 Coding Technologies AB Spectral band replication and high frequency reconstruction audio coding methods and apparatuses using adaptive noise-floor addition and noise substitution limiting
USRE43189E1 (en) 1999-01-27 2012-02-14 Dolby International Ab Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting
EP1914729A1 (en) 1999-01-27 2008-04-23 Coding Technologies AB Spectral band replication and high frequency reconstruction audio coding methods and apparatuses using adaptive noise-floor addition and noise substitution limiting
EP1914728A1 (en) 1999-01-27 2008-04-23 Coding Technologies AB Spectral band replication and high frequency reconstruction audio coding methods and apparatuses using adaptive noise-floor addition and noise substitution limiting
JP2006201802A (ja) * 1999-01-27 2006-08-03 Coding Technologies Ab 情報源符号化システムの性能向上装置
JP2006201801A (ja) * 1999-01-27 2006-08-03 Coding Technologies Ab 情報源符号化システムの性能向上装置
US8255233B2 (en) 1999-01-27 2012-08-28 Dolby International Ab Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting
US8543385B2 (en) 1999-01-27 2013-09-24 Dolby International Ab Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting
US6708145B1 (en) * 1999-01-27 2004-03-16 Coding Technologies Sweden Ab Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting
US8738369B2 (en) 1999-01-27 2014-05-27 Dolby International Ab Enhancing performance of spectral band replication and related high frequency reconstruction coding
WO2001026095A1 (en) * 1999-10-01 2001-04-12 Coding Technologies Sweden Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
US6978236B1 (en) 1999-10-01 2005-12-20 Coding Technologies Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
US7191121B2 (en) 1999-10-01 2007-03-13 Coding Technologies Sweden Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
US7181389B2 (en) 1999-10-01 2007-02-20 Coding Technologies Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
US7483830B2 (en) 2000-03-07 2009-01-27 Nokia Corporation Speech decoder and a method for decoding speech
JP2003526123A (ja) * 2000-03-07 2003-09-02 ノキア コーポレイション 音声復号器及び音声を復号化する方法
JP2007156506A (ja) * 2000-03-07 2007-06-21 Nokia Corp 音声処理装置及び音声を処理する方法
EP1264303B1 (en) * 2000-03-07 2006-10-25 Nokia Corporation Speech processing
US8239208B2 (en) 2000-04-18 2012-08-07 France Telecom Sa Spectral enhancing method and device
JP4928703B2 (ja) * 2000-04-18 2012-05-09 フランス テレコム スペクトル増強実行方法および装置
JP2004501387A (ja) * 2000-04-18 2004-01-15 フランス　テレコム　エス　アー スペクトル増強実行方法および装置
EP1275109B2 (fr) † 2000-04-18 2018-11-07 Orange Méthode et dispositif d'enrichissement spectral
US7742927B2 (en) 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
KR100754033B1 (ko) * 2000-04-18 2007-09-04 프랑스 뗄레꽁(소시에떼 아노님) 스펙트럼 향상을 구현하기 위한 방법 및 장치
WO2001080223A1 (fr) * 2000-04-18 2001-10-25 France Telecom Sa Methode et dispositif d'enrichissement spectral
FR2807897A1 (fr) * 2000-04-18 2001-10-19 France Telecom Methode et dispositif d'enrichissement spectral
US8543232B2 (en) 2000-05-23 2013-09-24 Dolby International Ab Spectral translation/folding in the subband domain
US9691400B1 (en) 2000-05-23 2017-06-27 Dolby International Ab Spectral translation/folding in the subband domain
US10311882B2 (en) 2000-05-23 2019-06-04 Dolby International Ab Spectral translation/folding in the subband domain
WO2001091111A1 (en) * 2000-05-23 2001-11-29 Coding Technologies Sweden Ab Improved spectral translation/folding in the subband domain
RU2251795C2 (ru) * 2000-05-23 2005-05-10 Коудинг Текнолоджиз Аб Усовершенствованное преобразование спектра/свертка в области поддиапазонов
US9245534B2 (en) 2000-05-23 2016-01-26 Dolby International Ab Spectral translation/folding in the subband domain
US10699724B2 (en) 2000-05-23 2020-06-30 Dolby International Ab Spectral translation/folding in the subband domain
US9786290B2 (en) 2000-05-23 2017-10-10 Dolby International Ab Spectral translation/folding in the subband domain
US7680552B2 (en) 2000-05-23 2010-03-16 Coding Technologies Sweden Ab Spectral translation/folding in the subband domain
US7483758B2 (en) 2000-05-23 2009-01-27 Coding Technologies Sweden Ab Spectral translation/folding in the subband domain
US10008213B2 (en) 2000-05-23 2018-06-26 Dolby International Ab Spectral translation/folding in the subband domain
JP2009122699A (ja) * 2000-05-23 2009-06-04 Dolby Sweden Ab サブバンド領域における改良されたスペクトル移動／折返し
US9691402B1 (en) 2000-05-23 2017-06-27 Dolby International Ab Spectral translation/folding in the subband domain
US8412365B2 (en) 2000-05-23 2013-04-02 Dolby International Ab Spectral translation/folding in the subband domain
US9691403B1 (en) 2000-05-23 2017-06-27 Dolby International Ab Spectral translation/folding in the subband domain
US20180277128A1 (en) * 2000-05-23 2018-09-27 Dolby International Ab Spectral Translation/Folding in the Subband Domain
US9691399B1 (en) 2000-05-23 2017-06-27 Dolby International Ab Spectral translation/folding in the subband domain
US9697841B2 (en) 2000-05-23 2017-07-04 Dolby International Ab Spectral translation/folding in the subband domain
US9691401B1 (en) 2000-05-23 2017-06-27 Dolby International Ab Spectral translation/folding in the subband domain
EP1160977A3 (en) * 2000-06-02 2004-12-08 Agere Systems Guardian Corporation Method and apparatus for reducing aliasing in cascaded filter banks
US7184961B2 (en) * 2000-07-21 2007-02-27 Kabushiki Kaisha Kenwood Frequency thinning device and method for compressing information by thinning out frequency components of signal
US7003451B2 (en) 2000-11-14 2006-02-21 Coding Technologies Ab Apparatus and method applying adaptive spectral whitening in a high-frequency reconstruction coding system
WO2002041301A1 (en) * 2000-11-14 2002-05-23 Coding Technologies Sweden Ab Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering
US7433817B2 (en) 2000-11-14 2008-10-07 Coding Technologies Ab Apparatus and method applying adaptive spectral whitening in a high-frequency reconstruction coding system
CN1766993B (zh) * 2000-11-14 2011-07-27 杜比国际公司 利用自适应滤波改善高频重建编码方法的感知性能
WO2002041302A1 (en) * 2000-11-15 2002-05-23 Coding Technologies Sweden Ab Enhancing the performance of coding systems that use high frequency reconstruction methods
JP2007293354A (ja) * 2000-11-15 2007-11-08 Coding Technologies Ab 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法
US7050972B2 (en) 2000-11-15 2006-05-23 Coding Technologies Ab Enhancing the performance of coding systems that use high frequency reconstruction methods
JP2014089472A (ja) * 2000-11-15 2014-05-15 Dolby International Ab 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法
JP2016189015A (ja) * 2000-11-15 2016-11-04 ドルビー・インターナショナル・アクチボラゲットＤｏｌｂｙ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ａｂ 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法
JP2018185530A (ja) * 2000-11-15 2018-11-22 ドルビー・インターナショナル・アクチボラゲットＤｏｌｂｙ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ａｂ 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法
JP2012093774A (ja) * 2000-11-15 2012-05-17 Dolby International Ab 高周波数の再構成方法を使用するコーディング・システムの性能拡大方法
US7260520B2 (en) 2000-12-22 2007-08-21 Coding Technologies Ab Enhancing source coding systems by adaptive transposition
WO2002052545A1 (en) * 2000-12-22 2002-07-04 Coding Technologies Sweden Ab Enhancing source coding systems by adaptive transposition
US7660424B2 (en) 2001-02-07 2010-02-09 Dolby Laboratories Licensing Corporation Audio channel spatial translation
FR2821501A1 (fr) * 2001-02-23 2002-08-30 France Telecom Procede et dispositif de reconstruction spectrale d'un signal a spectre incomplet et systeme de codage/decodage associe
WO2002069326A1 (fr) * 2001-02-23 2002-09-06 France Telecom Procede et dispositif de reconstruction spectrale de signaux a plusieurs voies
FR2821476A1 (fr) * 2001-02-23 2002-08-30 France Telecom Procede de reconstruction spectrale de signal audio a spectre incomplet et dispositif correspondant
FR2821475A1 (fr) * 2001-02-23 2002-08-30 France Telecom Procede et dispositif de reconstruction spectrale de signaux a plusieurs voies, notamment de signaux stereophoniques
WO2002069328A1 (fr) * 2001-02-23 2002-09-06 France Telecom Sa Reconstruction spectrale et codage d'un signal a spectre incomplet
WO2002069327A1 (fr) * 2001-02-23 2002-09-06 France Telecom Sa Procede de reconstruction spectrale de signal audio a spectre incomplet et dispositif correspondant
JP2002328699A (ja) * 2001-03-02 2002-11-15 Matsushita Electric Ind Co Ltd 符号化装置および復号化装置
US7242710B2 (en) * 2001-04-02 2007-07-10 Coding Technologies Ab Aliasing reduction using complex-exponential modulated filterbanks
US7685218B2 (en) 2001-04-10 2010-03-23 Dolby Laboratories Licensing Corporation High frequency signal construction method and apparatus
JPWO2003003345A1 (ja) * 2001-06-29 2004-10-21 株式会社ケンウッド 信号の周波数成分を補間するための装置および方法
US7400651B2 (en) 2001-06-29 2008-07-15 Kabushiki Kaisha Kenwood Device and method for interpolating frequency components of signal
US8116460B2 (en) * 2001-07-10 2012-02-14 Coding Technologies Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
EP3477640A1 (en) 2001-07-10 2019-05-01 Dolby International AB Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US10540982B2 (en) 2001-07-10 2020-01-21 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
EP2249336A1 (en) 2001-07-10 2010-11-10 Dolby International AB Efficient and scalable parametric stereo coding for low bitrate audio coding applications
EP1600945A2 (en) 2001-07-10 2005-11-30 Coding Technologies Sweden AB Efficient and scalable parametric stereo coding for low bitrate audio coding applications
WO2003007656A1 (en) * 2001-07-10 2003-01-23 Coding Technologies Ab Efficient and scalable parametric stereo coding for low bitrate applications
US8243936B2 (en) 2001-07-10 2012-08-14 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US10297261B2 (en) 2001-07-10 2019-05-21 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
EP1603117A2 (en) 2001-07-10 2005-12-07 Coding Technologies Sweden AB Efficient and scalable parametric stereo coding for low bitrate audio coding applications
EP1603119A2 (en) 2001-07-10 2005-12-07 Coding Technologies AB Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US9218818B2 (en) 2001-07-10 2015-12-22 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
EP3104367A1 (en) 2001-07-10 2016-12-14 Dolby International AB Parametric stereo audio decoding
US8605911B2 (en) 2001-07-10 2013-12-10 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US9865271B2 (en) 2001-07-10 2018-01-09 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate applications
US8014534B2 (en) 2001-07-10 2011-09-06 Coding Technologies Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US9792919B2 (en) 2001-07-10 2017-10-17 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate applications
US10902859B2 (en) 2001-07-10 2021-01-26 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
EP2015292A1 (en) 2001-07-10 2009-01-14 Dolby Sweden AB Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US9799341B2 (en) 2001-07-10 2017-10-24 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate applications
US9799340B2 (en) 2001-07-10 2017-10-24 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US8081763B2 (en) * 2001-07-10 2011-12-20 Coding Technologies Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US8073144B2 (en) 2001-07-10 2011-12-06 Coding Technologies Ab Stereo balance interpolation
US8059826B2 (en) 2001-07-10 2011-11-15 Coding Technologies Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US7260541B2 (en) 2001-07-13 2007-08-21 Matsushita Electric Industrial Co., Ltd. Audio signal decoding device and audio signal encoding device
EP1351401A4 (en) * 2001-07-13 2004-11-17 Matsushita Electric Industrial Co Ltd AUDIO SIGNAL DECODING DEVICE AND AUDIO SIGNAL ENCODING DEVICE
JP2003108197A (ja) * 2001-07-13 2003-04-11 Matsushita Electric Ind Co Ltd オーディオ信号復号化装置およびオーディオ信号符号化装置
US7283967B2 (en) 2001-11-02 2007-10-16 Matsushita Electric Industrial Co., Ltd. Encoding device decoding device
US7392176B2 (en) 2001-11-02 2008-06-24 Matsushita Electric Industrial Co., Ltd. Encoding device, decoding device and audio data distribution system
US7328160B2 (en) 2001-11-02 2008-02-05 Matsushita Electric Industrial Co., Ltd. Encoding device and decoding device
EP1318502A3 (de) * 2001-11-08 2009-10-07 Grundig Multimedia B.V. Verfahren zur Audiocodierung
USRE47935E1 (en) 2001-11-14 2020-04-07 Dolby International Ab Encoding device and decoding device
USRE47956E1 (en) 2001-11-14 2020-04-21 Dolby International Ab Encoding device and decoding device
USRE47949E1 (en) 2001-11-14 2020-04-14 Dolby International Ab Encoding device and decoding device
US7509254B2 (en) 2001-11-14 2009-03-24 Panasonic Corporation Encoding device and decoding device
USRE48045E1 (en) 2001-11-14 2020-06-09 Dolby International Ab Encoding device and decoding device
US8108222B2 (en) 2001-11-14 2012-01-31 Panasonic Corporation Encoding device and decoding device
USRE46565E1 (en) 2001-11-14 2017-10-03 Dolby International Ab Encoding device and decoding device
USRE48145E1 (en) 2001-11-14 2020-08-04 Dolby International Ab Encoding device and decoding device
USRE45042E1 (en) 2001-11-14 2014-07-22 Dolby International Ab Encoding device and decoding device
US7308401B2 (en) 2001-11-14 2007-12-11 Matsushita Electric Industrial Co., Ltd. Encoding device and decoding device
US7783496B2 (en) 2001-11-14 2010-08-24 Panasonic Corporation Encoding device and decoding device
USRE47814E1 (en) 2001-11-14 2020-01-14 Dolby International Ab Encoding device and decoding device
USRE44600E1 (en) 2001-11-14 2013-11-12 Panasonic Corporation Encoding device and decoding device
US7469206B2 (en) 2001-11-29 2008-12-23 Coding Technologies Ab Methods for improving high frequency reconstruction
US8019612B2 (en) 2001-11-29 2011-09-13 Coding Technologies Ab Methods for improving high frequency reconstruction
WO2003046891A1 (en) * 2001-11-29 2003-06-05 Coding Technologies Ab Methods for improving high frequency reconstruction
US8447621B2 (en) 2001-11-29 2013-05-21 Dolby International Ab Methods for improving high frequency reconstruction
US9431020B2 (en) 2001-11-29 2016-08-30 Dolby International Ab Methods for improving high frequency reconstruction
US9761234B2 (en) 2001-11-29 2017-09-12 Dolby International Ab High frequency regeneration of an audio signal with synthetic sinusoid addition
US8112284B2 (en) 2001-11-29 2012-02-07 Coding Technologies Ab Methods and apparatus for improving high frequency reconstruction of audio and speech signals
US9792923B2 (en) 2001-11-29 2017-10-17 Dolby International Ab High frequency regeneration of an audio signal with synthetic sinusoid addition
US9818418B2 (en) 2001-11-29 2017-11-14 Dolby International Ab High frequency regeneration of an audio signal with synthetic sinusoid addition
US9779746B2 (en) 2001-11-29 2017-10-03 Dolby International Ab High frequency regeneration of an audio signal with synthetic sinusoid addition
US9818417B2 (en) 2001-11-29 2017-11-14 Dolby International Ab High frequency regeneration of an audio signal with synthetic sinusoid addition
US9812142B2 (en) 2001-11-29 2017-11-07 Dolby International Ab High frequency regeneration of an audio signal with synthetic sinusoid addition
US9761236B2 (en) 2001-11-29 2017-09-12 Dolby International Ab High frequency regeneration of an audio signal with synthetic sinusoid addition
US10403295B2 (en) 2001-11-29 2019-09-03 Dolby International Ab Methods for improving high frequency reconstruction
US11238876B2 (en) 2001-11-29 2022-02-01 Dolby International Ab Methods for improving high frequency reconstruction
US9761237B2 (en) 2001-11-29 2017-09-12 Dolby International Ab High frequency regeneration of an audio signal with synthetic sinusoid addition
US8805696B2 (en) 2001-12-14 2014-08-12 Microsoft Corporation Quality improvement techniques in an audio encoder
US9443525B2 (en) 2001-12-14 2016-09-13 Microsoft Technology Licensing, Llc Quality improvement techniques in an audio encoder
US7246065B2 (en) 2002-01-30 2007-07-17 Matsushita Electric Industrial Co., Ltd. Band-division encoder utilizing a plurality of encoding units
EP1351218A3 (en) * 2002-03-06 2004-04-07 Kabushiki Kaisha Toshiba Audio signal reproducing method and an apparatus for reproducing the same
US8126709B2 (en) 2002-03-28 2012-02-28 Dolby Laboratories Licensing Corporation Broadband frequency translation for high frequency regeneration
US9548060B1 (en) 2002-03-28 2017-01-17 Dolby Laboratories Licensing Corporation High frequency regeneration of an audio signal with temporal shaping
SG153658A1 (en) * 2002-03-28 2009-07-29 Dolby Lab Licensing Corp Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
US10529347B2 (en) 2002-03-28 2020-01-07 Dolby Laboratories Licensing Corporation Methods, apparatus and systems for determining reconstructed audio signal
US9177564B2 (en) 2002-03-28 2015-11-03 Dolby Laboratories Licensing Corporation Reconstructing an audio signal by spectral component regeneration and noise blending
EP2194528A1 (en) * 2002-03-28 2010-06-09 Dolby Laboratories Licensing Corporation Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
US9324328B2 (en) 2002-03-28 2016-04-26 Dolby Laboratories Licensing Corporation Reconstructing an audio signal with a noise parameter
US9343071B2 (en) 2002-03-28 2016-05-17 Dolby Laboratories Licensing Corporation Reconstructing an audio signal with a noise parameter
US10269362B2 (en) 2002-03-28 2019-04-23 Dolby Laboratories Licensing Corporation Methods, apparatus and systems for determining reconstructed audio signal
US9412389B1 (en) 2002-03-28 2016-08-09 Dolby Laboratories Licensing Corporation High frequency regeneration of an audio signal by copying in a circular manner
KR101005731B1 (ko) * 2002-03-28 2011-01-06 돌비 레버러토리즈 라이쎈싱 코오포레이션 주파수 변환에 기초한 불완전한 스펙트럼을 가진 오디오신호의 스펙트럼을 복구하기 위한 방법 및 장치
US9412383B1 (en) 2002-03-28 2016-08-09 Dolby Laboratories Licensing Corporation High frequency regeneration of an audio signal by copying in a circular manner
US9412388B1 (en) 2002-03-28 2016-08-09 Dolby Laboratories Licensing Corporation High frequency regeneration of an audio signal with temporal shaping
US9466306B1 (en) 2002-03-28 2016-10-11 Dolby Laboratories Licensing Corporation High frequency regeneration of an audio signal with temporal shaping
US8457956B2 (en) 2002-03-28 2013-06-04 Dolby Laboratories Licensing Corporation Reconstructing an audio signal by spectral component regeneration and noise blending
US9767816B2 (en) 2002-03-28 2017-09-19 Dolby Laboratories Licensing Corporation High frequency regeneration of an audio signal with phase adjustment
US9653085B2 (en) 2002-03-28 2017-05-16 Dolby Laboratories Licensing Corporation Reconstructing an audio signal having a baseband and high frequency components above the baseband
US20170148454A1 (en) * 2002-03-28 2017-05-25 Dolby Laboratories Licensing Corporation High Frequency Regeneration of an Audio Signal with Phase Adjustment
US8285543B2 (en) 2002-03-28 2012-10-09 Dolby Laboratories Licensing Corporation Circular frequency translation with noise blending
US9947328B2 (en) 2002-03-28 2018-04-17 Dolby Laboratories Licensing Corporation Methods, apparatus and systems for determining reconstructed audio signal
US9704496B2 (en) 2002-03-28 2017-07-11 Dolby Laboratories Licensing Corporation High frequency regeneration of an audio signal with phase adjustment
US7269550B2 (en) 2002-04-11 2007-09-11 Matsushita Electric Industrial Co., Ltd. Encoding device and decoding device
EP1503370A4 (en) * 2002-05-07 2007-08-22 Sony Corp Coding method, coding device, decoding method and decoding device
US7428489B2 (en) 2002-05-07 2008-09-23 Sony Corporation Encoding method and apparatus, and decoding method and apparatus
US8050933B2 (en) 2002-06-17 2011-11-01 Dolby Laboratories Licensing Corporation Audio coding system using temporal shape of a decoded signal to adapt synthesized spectral components
US7337118B2 (en) 2002-06-17 2008-02-26 Dolby Laboratories Licensing Corporation Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
US8032387B2 (en) 2002-06-17 2011-10-04 Dolby Laboratories Licensing Corporation Audio coding system using temporal shape of a decoded signal to adapt synthesized spectral components
US7447631B2 (en) 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
US7555434B2 (en) 2002-07-19 2009-06-30 Nec Corporation Audio decoding device, decoding method, and program
US7058571B2 (en) 2002-08-01 2006-06-06 Matsushita Electric Industrial Co., Ltd. Audio decoding apparatus and method for band expansion with aliasing suppression
KR100723753B1 (ko) * 2002-08-01 2007-05-30 마츠시타 덴끼 산교 가부시키가이샤 스펙트럼 대역 복사에 의한 오디오 디코딩 장치 및 오디오디코딩 방법
WO2004013841A1 (en) * 2002-08-01 2004-02-12 Matsushita Electric Industrial Co., Ltd. Audio decoding apparatus and audio decoding method based on spectral band repliction
EP1531551A4 (en) * 2002-08-21 2006-01-04 Sony Corp SIGNAL CODING DEVICE, METHOD, SIGNAL DECODING DEVICE AND METHOD
US7205910B2 (en) 2002-08-21 2007-04-17 Sony Corporation Signal encoding apparatus and signal encoding method, and signal decoding apparatus and signal decoding method
US7590543B2 (en) 2002-09-18 2009-09-15 Coding Technologies Sweden Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
KR100890203B1 (ko) * 2002-09-18 2009-03-25 돌비 스웨덴 에이비 이득 조절값의 계산 장치 및 방법 그리고 신호의 에너지평가 장치 및 방법
EP2239847A2 (en) 2002-09-18 2010-10-13 Dolby International AB Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
CN100466471C (zh) * 2002-09-18 2009-03-04 瑞典商编码技术股份公司 信号的光谱包络调整装置以及方法
NO344083B1 (no) * 2002-09-18 2019-09-02 Dolby Int Ab Fremgangsmåte, anordning og program til spektralinnhyllingsjustering
NO20150250A1 (no) * 2002-09-18 2015-02-23 Dolby Int Ab Fremgangsmåte for reduksjon av aliasing innført ved spektralinnhyllingsjustering i realverdibaserte filterbanker
NO20092676L (no) * 2002-09-18 2005-04-15 Coding Tech Ab Fremgangsmate for reduksjon av aliasing innfort ved spektralinnhyllingsjustering i realverdibaserte filterbanker
US8108209B2 (en) 2002-09-18 2012-01-31 Coding Technologies Sweden Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
EP1986321A3 (en) * 2002-09-18 2009-04-01 Dolby Sweden AB Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
EP1986321A2 (en) 2002-09-18 2008-10-29 Dolby Sweden AB Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
NO20180077A1 (no) * 2002-09-18 2005-04-15 Dolby Int Ab Fremgangsmåte, anordning og program til spektralinnhyllingsjustering
US8606587B2 (en) 2002-09-18 2013-12-10 Dolby International Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
NO340225B1 (no) * 2002-09-18 2017-03-20 Dolby Int Ab Fremgangsmåte, anordning og datamaskinprogram til spektralinnnhyllingsjustering
NO340385B1 (no) * 2002-09-18 2017-04-10 Dolby Int Ab Fremgangsmåte for reduksjon av aliasing innført ved spektralinnhyllingsjustering i realverdibaserte filterbanker
US8145475B2 (en) 2002-09-18 2012-03-27 Coding Technologies Sweden Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
EP2239847A3 (en) * 2002-09-18 2012-03-28 Dolby International AB Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
US7548864B2 (en) 2002-09-18 2009-06-16 Coding Technologies Sweden Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
NO20092677L (no) * 2002-09-18 2005-04-15 Coding Tech Ab Fremgangsmate for reduksjon av aliasing innfort ved spektralinnhyllingsjustering i realverdibaserte filterbanker
AU2006235813B2 (en) * 2002-09-18 2009-03-12 Dolby International Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
US10157623B2 (en) 2002-09-18 2018-12-18 Dolby International Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
WO2004027998A3 (en) * 2002-09-18 2004-05-27 Coding Tech Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
NO343510B1 (no) * 2002-09-18 2019-03-25 Dolby Int Ab Fremgangsmåte og anordning for reduksjon av aliasing introdusert av spektral-omhyllingsjustering i realverdi-filterbanker
NO345377B1 (no) * 2002-09-18 2021-01-11 Dolby Int Ab Fremgangsmåte, anordning og program til spektralinnhyllingsjustering
US7577570B2 (en) 2002-09-18 2009-08-18 Coding Technologies Sweden Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
EP1635461A1 (en) * 2002-09-18 2006-03-15 Coding Technologies AB Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
US8498876B2 (en) 2002-09-18 2013-07-30 Dolby International Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
AU2003270114B2 (en) * 2002-09-18 2006-11-23 Dolby International Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
EP1643642A1 (en) * 2002-09-18 2006-04-05 Coding Technologies AB Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
NO343509B1 (no) * 2002-09-18 2019-03-25 Dolby Int Ab Fremgangsmåte, anordning og program til spektralinnhyllingsjustering
KR100890201B1 (ko) * 2002-09-18 2009-03-25 돌비 스웨덴 에이비 어느 채널들이 결합 이득 팩터를 가지는지 평가하는 장치및 그 방법
AU2006235812B2 (en) * 2002-09-18 2009-10-01 Dolby International Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
NO20190931A1 (no) * 2002-09-18 2005-04-15 Dolby Int Ab Fremgangsmåte, anordning og program til spektralinnhyllingsjustering
KR100697255B1 (ko) * 2002-09-18 2007-03-21 코딩 테크놀러지스 에이비 실수값 필터뱅크의 스펙트럼 포락선 조절에 의해 도입된앨리어싱의 감소 방법
US8346566B2 (en) 2002-09-18 2013-01-01 Dolby International Ab Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks
NO20180078A1 (no) * 2002-09-18 2005-04-15 Dolby Int Ab Fremgangsmåte, anordning og program til spektralinnhyllingsjustering
US7069212B2 (en) 2002-09-19 2006-06-27 Matsushita Elecric Industrial Co., Ltd. Audio decoding apparatus and method for band expansion with aliasing adjustment
US7318027B2 (en) 2003-02-06 2008-01-08 Dolby Laboratories Licensing Corporation Conversion of synthesized spectral components for encoding and low-complexity transcoding
KR100917464B1 (ko) * 2003-03-07 2009-09-14 삼성전자주식회사 대역 확장 기법을 이용한 디지털 데이터의 부호화 방법,그 장치, 복호화 방법 및 그 장치
EP1455345A1 (en) * 2003-03-07 2004-09-08 Samsung Electronics Co., Ltd. Method and apparatus for encoding and/or decoding digital data using bandwidth extension technology
EP1455345B1 (en) * 2003-03-07 2011-04-27 Samsung Electronics Co., Ltd. Method and apparatus for encoding and/or decoding digital data using bandwidth extension technology
KR100923301B1 (ko) * 2003-03-22 2009-10-23 삼성전자주식회사 대역 확장 기법을 이용한 오디오 데이터의 부호화 방법,그 장치, 복호화 방법 및 그 장치
KR100923300B1 (ko) * 2003-03-22 2009-10-23 삼성전자주식회사 대역 확장 기법을 이용한 오디오 데이터의 부호화 방법,그 장치, 복호화 방법 및 그 장치
US8311809B2 (en) 2003-04-17 2012-11-13 Koninklijke Philips Electronics N.V. Converting decoded sub-band signal into a stereo signal
WO2004102532A1 (en) * 2003-05-08 2004-11-25 Dolby Laboratories Licensing Corporation Improved audio coding systems and methods using spectral component coupling and spectral component regeneration
US7318035B2 (en) 2003-05-08 2008-01-08 Dolby Laboratories Licensing Corporation Audio coding systems and methods using spectral component coupling and spectral component regeneration
CN100394476C (zh) * 2003-05-08 2008-06-11 杜比实验室特许公司 使用频谱分量耦合和频谱分量再生的改进音频编码系统和方法
EP3757994A1 (en) * 2003-05-08 2020-12-30 Dolby Laboratories Licensing Corporation Improved audio coding systems and methods using spectral component coupling and spectral component regeneration
EP4057282A1 (en) * 2003-05-08 2022-09-14 Dolby Laboratories Licensing Corporation Improved audio coding systems and methods using spectral component coupling and spectral component regeneration
EP3093844A1 (en) * 2003-05-08 2016-11-16 Dolby Laboratories Licensing Corporation Improved audio coding systems and methods using spectral component regeneration
US7275031B2 (en) 2003-06-25 2007-09-25 Coding Technologies Ab Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal
WO2005001813A1 (en) 2003-06-25 2005-01-06 Coding Technologies Ab Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal
DE10328777A1 (de) * 2003-06-25 2005-01-27 Coding Technologies Ab Vorrichtung und Verfahren zum Codieren eines Audiosignals und Vorrichtung und Verfahren zum Decodieren eines codierten Audiosignals
JP2007519014A (ja) * 2003-06-30 2007-07-12 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ノイズの加算によるデコードオーディオの品質の向上
WO2005001814A1 (en) 2003-06-30 2005-01-06 Koninklijke Philips Electronics N.V. Improving quality of decoded audio by adding noise
US8196063B2 (en) 2003-07-30 2012-06-05 Aol Inc. Method and system for managing digital assets
US7082573B2 (en) 2003-07-30 2006-07-25 America Online, Inc. Method and system for managing digital assets
US7526728B2 (en) 2003-07-30 2009-04-28 Aol Llc Method and system for managing digital assets
EP2172931A1 (en) 2003-09-30 2010-04-07 Panasonic Corporation Sampling rate conversion apparatus, coding apparatus, decoding apparatus and methods thereof
US8195471B2 (en) 2003-09-30 2012-06-05 Panasonic Corporation Sampling rate conversion apparatus, coding apparatus, decoding apparatus and methods thereof
WO2005031705A1 (ja) 2003-09-30 2005-04-07 Matsushita Electric Industrial Co., Ltd. サンプリングレート変換装置、符号化装置、復号化装置、およびこれらの方法
US7756711B2 (en) 2003-09-30 2010-07-13 Panasonic Corporation Sampling rate conversion apparatus, encoding apparatus decoding apparatus and methods thereof
US8374884B2 (en) 2003-09-30 2013-02-12 Panasonic Corporation Decoding apparatus and decoding method
EP1669981A4 (en) * 2003-09-30 2008-06-18 Matsushita Electric Industrial Co Ltd DEVICE FOR IMPLEMENTING THE ABDESTRATE, CODING DEVICE, DECODING DEVICE AND METHOD THEREFOR
US7451091B2 (en) 2003-10-07 2008-11-11 Matsushita Electric Industrial Co., Ltd. Method for determining time borders and frequency resolutions for spectral envelope coding
US8645127B2 (en) 2004-01-23 2014-02-04 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
RU2259632C1 (ru) * 2004-03-24 2005-08-27 Московский государственный университет путей сообщения (МИИТ) Способ деления полосы частот передаваемого сигнала и устройство для его осуществления
US7668711B2 (en) 2004-04-23 2010-02-23 Panasonic Corporation Coding equipment
US8065139B2 (en) 2004-06-21 2011-11-22 Koninklijke Philips Electronics N.V. Method of audio encoding
EP1617414A2 (en) 2004-07-14 2006-01-18 British Broadcasting Corporation Transmission of a data signal in an audio signal
EP1617414A3 (en) * 2004-07-14 2007-01-03 British Broadcasting Corporation Transmission of a data signal in an audio signal
WO2006018748A1 (en) * 2004-08-17 2006-02-23 Koninklijke Philips Electronics N.V. Scalable audio coding
JP2008510197A (ja) * 2004-08-17 2008-04-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ スケーラブルなオーディオ符号化
US7921007B2 (en) 2004-08-17 2011-04-05 Koninklijke Philips Electronics N.V. Scalable audio coding
US8255231B2 (en) 2004-11-02 2012-08-28 Koninklijke Philips Electronics N.V. Encoding and decoding of audio signals using complex-valued filter banks
US8515083B2 (en) 2004-11-02 2013-08-20 Dolby International Ab Methods for improved performance of prediction based multi-channel reconstruction
CN1998046B (zh) * 2004-11-02 2012-01-18 杜比国际公司 多声道合成器、编码器、编码方法以及使用它们的设备
US7668722B2 (en) 2004-11-02 2010-02-23 Coding Technologies Ab Multi parametrisation based multi-channel reconstruction
US8301439B2 (en) 2005-07-15 2012-10-30 Samsung Electronics Co., Ltd Method and apparatus to encode/decode low bit-rate audio signal by approximiating high frequency envelope with strongly correlated low frequency codevectors
US7676678B2 (en) 2005-09-06 2010-03-09 Nero Ag Method for signing a data package and signing apparatus
US8396717B2 (en) 2005-09-30 2013-03-12 Panasonic Corporation Speech encoding apparatus and speech encoding method
EP1956590A4 (en) * 2005-11-30 2011-07-13 Kenwood Corp INTERPOLATION DEVICE, AUDIO REPRODUCTION DEVICE, INTERPOLATION METHOD AND INTERPOLATION PROGRAM
US7489111B2 (en) 2005-12-08 2009-02-10 Robert W. Wise Holstered cordless power tool
US8116459B2 (en) * 2006-03-28 2012-02-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Enhanced method for signal shaping in multi-channel audio reconstruction
EP2023344A4 (en) * 2006-05-22 2009-06-17 Oki Electric Ind Co Ltd OFF-BAND SIGNAL GENERATOR AND FREQUENCY BAND EXPANSION DEVICE
US9159333B2 (en) 2006-06-21 2015-10-13 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
JP2012208514A (ja) * 2006-06-21 2012-10-25 Samsung Electronics Co Ltd 符号化方法及び復号化方法
US9847095B2 (en) 2006-06-21 2017-12-19 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
US8788275B2 (en) 2006-11-24 2014-07-22 Fujitsu Limited Decoding method and apparatus for an audio signal through high frequency compensation
US8046214B2 (en) 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US9349376B2 (en) 2007-06-29 2016-05-24 Microsoft Technology Licensing, Llc Bitstream syntax for multi-process audio decoding
US8255229B2 (en) 2007-06-29 2012-08-28 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US9741354B2 (en) 2007-06-29 2017-08-22 Microsoft Technology Licensing, Llc Bitstream syntax for multi-process audio decoding
US9026452B2 (en) 2007-06-29 2015-05-05 Microsoft Technology Licensing, Llc Bitstream syntax for multi-process audio decoding
US8645146B2 (en) 2007-06-29 2014-02-04 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US8249883B2 (en) 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
US8583445B2 (en) 2007-11-21 2013-11-12 Lg Electronics Inc. Method and apparatus for processing a signal using a time-stretched band extension base signal
EP2218068A4 (en) * 2007-11-21 2010-11-24 Lg Electronics Inc METHOD AND APPARATUS FOR SIGNAL PROCESSING
US8527282B2 (en) 2007-11-21 2013-09-03 Lg Electronics Inc. Method and an apparatus for processing a signal
US8504377B2 (en) 2007-11-21 2013-08-06 Lg Electronics Inc. Method and an apparatus for processing a signal using length-adjusted window
EP2210253A4 (en) * 2007-11-21 2010-12-01 Lg Electronics Inc METHOD AND DEVICE FOR PROCESSING A SIGNAL
US8688441B2 (en) 2007-11-29 2014-04-01 Motorola Mobility Llc Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape for out-of-signal bandwidth content
US8423371B2 (en) 2007-12-21 2013-04-16 Panasonic Corporation Audio encoder, decoder, and encoding method thereof
EP4485460A2 (en) 2008-01-31 2025-01-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
EP4503027A2 (en) 2008-01-31 2025-02-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device for a bandwidth extension of an audio signal
EP4102503A1 (en) 2008-01-31 2022-12-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
EP4503027A3 (en) * 2008-01-31 2025-03-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device for a bandwidth extension of an audio signal
EP4425492A3 (en) * 2008-01-31 2024-10-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
EP4503026A3 (en) * 2008-01-31 2025-03-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for a bandwidth extension of an audio signal
EP4485460A3 (en) * 2008-01-31 2025-02-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
EP4481737A3 (en) * 2008-01-31 2025-02-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
EP4510130A2 (en) 2008-01-31 2025-02-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method of decoding comprising a bandwidth extension of an audio signal
US8996362B2 (en) 2008-01-31 2015-03-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Device and method for a bandwidth extension of an audio signal
EP4481736A3 (en) * 2008-01-31 2025-02-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
EP4510130A3 (en) * 2008-01-31 2025-03-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method of decoding comprising a bandwidth extension of an audio signal
EP4503026A2 (en) 2008-01-31 2025-02-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for a bandwidth extension of an audio signal
EP4425492A2 (en) 2008-01-31 2024-09-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
EP4528731A1 (en) 2008-01-31 2025-03-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method of decoding comprising a bandwidth extension of an audio signal
WO2009095169A1 (en) * 2008-01-31 2009-08-06 Frauenhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
DE102008015702A1 (de) 2008-01-31 2009-08-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Bandbreitenerweiterung eines Audiosignals
EP4481737A2 (en) 2008-01-31 2024-12-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
EP4481736A2 (en) 2008-01-31 2024-12-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
EP3264414A1 (en) 2008-01-31 2018-01-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for a bandwidth extension of an audio signal
US8433582B2 (en) 2008-02-01 2013-04-30 Motorola Mobility Llc Method and apparatus for estimating high-band energy in a bandwidth extension system
US8527283B2 (en) 2008-02-07 2013-09-03 Motorola Mobility Llc Method and apparatus for estimating high-band energy in a bandwidth extension system
EP2296145A2 (en) 2008-03-10 2011-03-16 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Device and method for manipulating an audio signal having a transient event
EP2293294A2 (en) 2008-03-10 2011-03-09 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Device and method for manipulating an audio signal having a transient event
EP2293295A2 (en) 2008-03-10 2011-03-09 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Device and method for manipulating an audio signal having a transient event
EP2104097A1 (en) * 2008-03-19 2009-09-23 Oki Electric Industry Co., Ltd. Voice band expander and expansion method
US8396703B2 (en) 2008-03-19 2013-03-12 Oki Electric Industry Co., Ltd. Voice band expander and expansion method, and voice communication apparatus
USRE50650E1 (en) 2008-07-11 2025-10-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
US8731948B2 (en) 2008-07-11 2014-05-20 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio signal synthesizer for selectively performing different patching algorithms
US10014000B2 (en) 2008-07-11 2018-07-03 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio signal encoder and method for generating a data stream having components of an audio signal in a first frequency band, control information and spectral band replication parameters
US8880410B2 (en) 2008-07-11 2014-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
US10522168B2 (en) 2008-07-11 2019-12-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio signal synthesizer and audio signal encoder
USRE50655E1 (en) 2008-07-11 2025-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
KR101223835B1 (ko) * 2008-07-11 2013-01-17 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 신호 합성기 및 오디오 신호 인코더
USRE47180E1 (en) 2008-07-11 2018-12-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
USRE50638E1 (en) 2008-07-11 2025-10-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
USRE49801E1 (en) 2008-07-11 2024-01-16 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
USRE50639E1 (en) 2008-07-11 2025-10-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal
EP2301026B1 (en) * 2008-07-11 2020-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio signal synthesizer and audio signal encoder
US8463412B2 (en) 2008-08-21 2013-06-11 Motorola Mobility Llc Method and apparatus to facilitate determining signal bounding frequencies
EP2317509A4 (en) * 2008-08-29 2014-06-11 Sony Corp DEVICE AND METHOD FOR EXPANSION OF A FREQUENCY BAND AND CODING DEVICE AND METHOD, DECODING DEVICE AND METHOD AND PROGRAM THEREFOR
EP2169670A3 (en) * 2008-09-25 2010-04-28 LG Electronics Inc. An apparatus for processing an audio signal and method thereof
EP2169670A2 (en) 2008-09-25 2010-03-31 LG Electronics Inc. An apparatus for processing an audio signal and method thereof
US8831958B2 (en) 2008-09-25 2014-09-09 Lg Electronics Inc. Method and an apparatus for a bandwidth extension using different schemes
EP2224433A1 (en) * 2008-09-25 2010-09-01 Lg Electronics Inc. An apparatus for processing an audio signal and method thereof
US8494865B2 (en) 2008-10-08 2013-07-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio decoder, audio encoder, method for decoding an audio signal, method for encoding an audio signal, computer program and audio signal
EP2184929A1 (en) 2008-11-10 2010-05-12 Oticon A/S N band FM demodulation to aid cochlear hearing impaired persons
WO2010066861A2 (en) 2008-12-10 2010-06-17 Skype Limited Regeneration of wideband speech
US8386243B2 (en) 2008-12-10 2013-02-26 Skype Regeneration of wideband speech
US9947340B2 (en) 2008-12-10 2018-04-17 Skype Regeneration of wideband speech
WO2010066861A3 (en) * 2008-12-10 2010-08-05 Skype Limited Regeneration of wideband speech
US8332210B2 (en) 2008-12-10 2012-12-11 Skype Regeneration of wideband speech
US10657984B2 (en) 2008-12-10 2020-05-19 Skype Regeneration of wideband speech
EP4053838A1 (en) 2008-12-15 2022-09-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoder, corresponding method and computer program
EP3364414A1 (en) 2008-12-15 2018-08-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder and bandwidth extension decoder
EP4231292A1 (en) 2008-12-15 2023-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoder, corresponding method and computer program
EP4231291A1 (en) 2008-12-15 2023-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoder, corresponding method and computer program
EP2945159A1 (en) 2008-12-15 2015-11-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder and bandwidth extension decoder
EP4231294A1 (en) 2008-12-15 2023-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoder
EP4224475A1 (en) 2008-12-15 2023-08-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoder, corresponding method and computer program
EP4231290A1 (en) 2008-12-15 2023-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoder, corresponding method and computer program
EP4224474A1 (en) 2008-12-15 2023-08-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoder, corresponding method and computer program
EP4231293A1 (en) 2008-12-15 2023-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoder, corresponding method and computer program
EP4231295A1 (en) 2008-12-15 2023-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio bandwidth extension decoding method and computer program
US8401862B2 (en) 2008-12-15 2013-03-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, method for providing output signal, bandwidth extension decoder, and method for providing bandwidth extended audio signal
KR101256808B1 (ko) * 2009-01-16 2013-04-22 돌비 인터네셔널 에이비 외적 향상 고조파 전치
EP4300495A2 (en) 2009-01-16 2024-01-03 Dolby International AB Cross product enhanced harmonic transposition
EP4586249A3 (en) * 2009-01-16 2025-07-23 Dolby International AB Cross product enhanced harmonic transposition
US10192565B2 (en) 2009-01-16 2019-01-29 Dolby International Ab Cross product enhanced harmonic transposition
EP4586249A2 (en) 2009-01-16 2025-07-16 Dolby International AB Cross product enhanced harmonic transposition
EP4535354A3 (en) * 2009-01-16 2025-04-16 Dolby International AB Cross product enhanced harmonic transposition
EP4145446A1 (en) 2009-01-16 2023-03-08 Dolby International AB Cross product enhanced harmonic transposition
EP4535354A2 (en) 2009-01-16 2025-04-09 Dolby International AB Cross product enhanced harmonic transposition
US8818541B2 (en) 2009-01-16 2014-08-26 Dolby International Ab Cross product enhanced harmonic transposition
WO2010081892A3 (en) * 2009-01-16 2010-11-18 Dolby International Ab Cross product enhanced harmonic transposition
EP4517749A1 (en) 2009-01-16 2025-03-05 Dolby International AB Cross product enhanced harmonic transposition
EP3598446A1 (en) 2009-01-16 2020-01-22 Dolby International AB Cross product enhanced harmonic transposition
EP3598445A1 (en) 2009-01-16 2020-01-22 Dolby International AB Cross product enhanced harmonic transposition
EP3598447A1 (en) 2009-01-16 2020-01-22 Dolby International AB Cross product enhanced harmonic transposition
EP2620941A1 (en) 2009-01-16 2013-07-31 Dolby International AB Cross product enhanced harmonic transposition
EP3992966A1 (en) 2009-01-16 2022-05-04 Dolby International AB Cross product enhanced harmonic transposition
AU2010205583B2 (en) * 2009-01-16 2013-02-07 Dolby International Ab Cross product enhanced harmonic transposition
US10586550B2 (en) 2009-01-16 2020-03-10 Dolby International Ab Cross product enhanced harmonic transposition
WO2010081892A2 (en) 2009-01-16 2010-07-22 Dolby Sweden Ab Cross product enhanced harmonic transposition
US12165666B2 (en) 2009-01-16 2024-12-10 Dolby International Ab Cross product enhanced harmonic transposition
US12119011B2 (en) 2009-01-16 2024-10-15 Dolby International Ab Cross product enhanced harmonic transposition
US9799346B2 (en) 2009-01-16 2017-10-24 Dolby International Ab Cross product enhanced harmonic transposition
US11682410B2 (en) 2009-01-16 2023-06-20 Dolby International Ab Cross product enhanced harmonic transposition
US11031025B2 (en) 2009-01-16 2021-06-08 Dolby International Ab Cross product enhanced harmonic transposition
US11935551B2 (en) 2009-01-16 2024-03-19 Dolby International Ab Cross product enhanced harmonic transposition
EP4300495A3 (en) * 2009-01-16 2024-02-21 Dolby International AB Cross product enhanced harmonic transposition
EP3985666A1 (en) 2009-01-28 2022-04-20 Dolby International AB Improved harmonic transposition
US11100937B2 (en) 2009-01-28 2021-08-24 Dolby International Ab Harmonic transposition in an audio coding method and system
AU2013211560B2 (en) * 2009-01-28 2016-04-28 Dolby International Ab Improved harmonic transposition
RU2493618C2 (ru) * 2009-01-28 2013-09-20 Долби Интернешнл Аб Усовершенствованное гармоническое преобразование
EP2674943A3 (en) * 2009-01-28 2014-03-19 Dolby International AB Improved harmonic transposition
AU2022291476B2 (en) * 2009-01-28 2023-03-23 Dolby International Ab Improved Harmonic Transposition
US11562755B2 (en) 2009-01-28 2023-01-24 Dolby International Ab Harmonic transposition in an audio coding method and system
US10043526B2 (en) 2009-01-28 2018-08-07 Dolby International Ab Harmonic transposition in an audio coding method and system
EP2674943A2 (en) 2009-01-28 2013-12-18 Dolby International AB Improved harmonic transposition
EP4120254A1 (en) 2009-01-28 2023-01-18 Dolby International AB Improved harmonic transposition
EP4524960A1 (en) 2009-01-28 2025-03-19 Dolby International AB Improved harmonic transposition
EP4503029A3 (en) * 2009-01-28 2025-03-19 Dolby International AB Improved harmonic transposition
EP4503028A3 (en) * 2009-01-28 2025-03-19 Dolby International AB Improved harmonic transposition
EP4503029A2 (en) 2009-01-28 2025-02-05 Dolby International AB Improved harmonic transposition
AU2010209673B2 (en) * 2009-01-28 2013-05-16 Dolby International Ab Improved harmonic transposition
AU2023282303B2 (en) * 2009-01-28 2024-04-04 Dolby International Ab Improved Harmonic Transposition
EP2953131A1 (en) 2009-01-28 2015-12-09 Dolby International AB Improved harmonic transposition
AU2015221516B2 (en) * 2009-01-28 2017-08-10 Dolby International Ab Improved Harmonic Transposition
EP4503028A2 (en) 2009-01-28 2025-02-05 Dolby International AB IMPROVED HARMONIC TRANSPOSITION
US10600427B2 (en) 2009-01-28 2020-03-24 Dolby International Ab Harmonic transposition in an audio coding method and system
EP3751570A1 (en) 2009-01-28 2020-12-16 Dolby International AB Improved harmonic transposition
WO2010086461A1 (en) * 2009-01-28 2010-08-05 Dolby International Ab Improved harmonic transposition
US9236061B2 (en) 2009-01-28 2016-01-12 Dolby International Ab Harmonic transposition in an audio coding method and system
EP3246919A1 (en) 2009-01-28 2017-11-22 Dolby International AB Improved harmonic transposition
US8463599B2 (en) 2009-02-04 2013-06-11 Motorola Mobility Llc Bandwidth extension method and apparatus for a modified discrete cosine transform audio coder
US12159642B2 (en) 2009-02-18 2024-12-03 Dolby International Ab Digital filterbank for spectral envelope adjustment
US9583118B1 (en) 2009-02-18 2017-02-28 Dolby International Ab Complex exponential modulated filter bank for high frequency reconstruction
US9760535B1 (en) 2009-02-18 2017-09-12 Dolby International Ab Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
US9722578B2 (en) 2009-02-18 2017-08-01 Dolby International Ab Low delay modulated filter bank
EP3657675A1 (en) 2009-02-18 2020-05-27 Dolby International AB Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo processing
US9865275B2 (en) 2009-02-18 2018-01-09 Dolby International Ab Low delay modulated filter bank
US9715881B1 (en) 2009-02-18 2017-07-25 Dolby International Ab Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
EP4415261A2 (en) 2009-02-18 2024-08-14 Dolby International AB Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo processing
EP2975765A2 (en) 2009-02-18 2016-01-20 Dolby International AB Low delay modulated filter bank
US9716486B1 (en) 2009-02-18 2017-07-25 Dolby International Ab Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
EP2975766A2 (en) 2009-02-18 2016-01-20 Dolby International AB Low delay modulated filter bank
US11735198B2 (en) 2009-02-18 2023-08-22 Dolby International Ab Digital filterbank for spectral envelope adjustment
EP2975764A2 (en) 2009-02-18 2016-01-20 Dolby International AB Low delay modulated filter bank
US9449608B2 (en) 2009-02-18 2016-09-20 Dolby International Ab Low delay modulated filter bank
US9918164B2 (en) 2009-02-18 2018-03-13 Dolby International Ab Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
US9721577B1 (en) 2009-02-18 2017-08-01 Dolby International Ab Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
WO2010094710A2 (en) 2009-02-18 2010-08-26 Dolby International Ab Low delay modulated filter bank
US9349382B2 (en) 2009-02-18 2016-05-24 Dolby International Ab Low delay modulated filter bank
US11107487B2 (en) 2009-02-18 2021-08-31 Dolby International Ab Digital filterbank for spectral envelope adjustment
EP3226415A1 (en) 2009-02-18 2017-10-04 Dolby International AB Low delay modulated filter bank
US10460742B2 (en) 2009-02-18 2019-10-29 Dolby International Ab Digital filterbank for spectral envelope adjustment
US9634647B2 (en) 2009-02-18 2017-04-25 Dolby International Ab Complex-valued synthesis filter bank with phase shift
EP3226414A1 (en) 2009-02-18 2017-10-04 Dolby International AB Complex exponential modulated filter bank for high frequency reconstruction
US9779748B2 (en) 2009-02-18 2017-10-03 Dolby International Ab Complex-valued filter bank with phase shift for high frequency reconstruction or parametric stereo
EP3937378A1 (en) 2009-02-18 2022-01-12 Dolby International AB Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
US9743183B1 (en) 2009-02-18 2017-08-22 Dolby International Ab Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
US9667229B1 (en) 2009-02-18 2017-05-30 Dolby International Ab Complex exponential modulated filter bank for high frequency reconstruction
US9318118B2 (en) 2009-02-18 2016-04-19 Dolby International Ab Low delay modulated filter bank
EP4213382A1 (en) 2009-02-18 2023-07-19 Dolby International AB Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo processing
US9653090B1 (en) 2009-02-18 2017-05-16 Dolby International Ab Complex exponential modulated filter bank for high frequency reconstruction
US9762210B1 (en) 2009-02-18 2017-09-12 Dolby International Ab Complex exponential modulated filter bank for high frequency reconstruction or parametric stereo
US10522156B2 (en) 2009-04-02 2019-12-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extension
US12159636B2 (en) 2009-04-02 2024-12-03 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extension
TWI416507B (zh) * 2009-04-02 2013-11-21 Fraunhofer Ges Forschung 用以基於輸入信號表示型態產生擴充頻寬信號之表示型態的裝置及方法和與其相關之音訊解碼器及電腦程式
AU2010230129B2 (en) * 2009-04-02 2011-09-29 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extension
WO2010112587A1 (en) * 2009-04-02 2010-10-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extension
CN102027537A (zh) * 2009-04-02 2011-04-20 弗劳恩霍夫应用研究促进协会 利用谐波带宽扩充及非谐波带宽扩充的组合、基于输入信号表示型态产生扩充带宽信号的表示型态的装置、方法及计算机程序
US10909994B2 (en) 2009-04-02 2021-02-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extension
US9697838B2 (en) 2009-04-02 2017-07-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extension
US9076433B2 (en) 2009-04-09 2015-07-07 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
WO2010115845A1 (en) 2009-04-09 2010-10-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
USRE50676E1 (en) 2009-04-09 2025-11-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
USRE50693E1 (en) 2009-04-09 2025-12-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
US8386268B2 (en) 2009-04-09 2013-02-26 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a synthesis audio signal using a patching control signal
KR101248321B1 (ko) * 2009-04-09 2013-03-27 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 합성 오디오 신호를 생성 및 오디오 신호를 인코딩하는 장치 및 방법
USRE50692E1 (en) 2009-04-09 2025-12-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
USRE50710E1 (en) 2009-04-09 2025-12-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
EP2239732A1 (en) 2009-04-09 2010-10-13 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
USRE50601E1 (en) 2009-04-09 2025-09-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
EP4645309A2 (en) 2009-05-27 2025-11-05 Dolby International AB Efficient combined harmonic transposition
EP3989223A1 (en) 2009-05-27 2022-04-27 Dolby International AB Efficient combined harmonic transposition
AU2010252028B9 (en) * 2009-05-27 2013-11-28 Dolby International Ab Efficient combined harmonic transposition
US11935508B2 (en) 2009-05-27 2024-03-19 Dolby International Ab Efficient combined harmonic transposition
EP3742442A1 (en) 2009-05-27 2020-11-25 Dolby International AB Efficient combined harmonic transposition
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
AU2019201296B2 (en) * 2009-05-27 2020-11-05 Dolby International Ab Efficient combined harmonic transposition
EP4293669A3 (en) * 2009-05-27 2024-01-17 Dolby International AB Efficient combined harmonic transposition
EP4152319A1 (en) 2009-05-27 2023-03-22 Dolby International AB Efficient combined harmonic transposition
AU2010252028B2 (en) * 2009-05-27 2013-10-03 Dolby International Ab Efficient combined harmonic transposition
EP4404195A2 (en) 2009-05-27 2024-07-24 Dolby International AB Efficient combined harmonic transposition
EP4404195A3 (en) * 2009-05-27 2024-08-14 Dolby International AB Efficient combined harmonic transposition
EP4293669A2 (en) 2009-05-27 2023-12-20 Dolby International AB Efficient combined harmonic transposition
AU2018201479B2 (en) * 2009-05-27 2018-12-06 Dolby International Ab Efficient Combined Harmonic Transposition
TWI643187B (zh) * 2009-05-27 2018-12-01 瑞典商杜比國際公司 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體
EP4645309A3 (en) * 2009-05-27 2025-11-19 Dolby International AB Efficient combined harmonic transposition
WO2010136459A1 (en) * 2009-05-27 2010-12-02 Dolby International Ab Efficient combined harmonic transposition
EP4557283A1 (en) 2009-05-27 2025-05-21 Dolby International AB Efficient combined harmonic transposition
AU2021200726B2 (en) * 2009-05-27 2022-07-07 Dolby International Ab Efficient combined harmonic transposition
EP3324408A1 (en) 2009-05-27 2018-05-23 Dolby International AB Efficient combined harmonic transposition
US9190067B2 (en) 2009-05-27 2015-11-17 Dolby International Ab Efficient combined harmonic transposition
EP2800093A1 (en) 2009-05-27 2014-11-05 Dolby International AB Efficient combined harmonic transposition
US12142251B2 (en) 2009-05-27 2024-11-12 Dolby International Ab Efficient combined harmonic transposition
US10304431B2 (en) 2009-05-27 2019-05-28 Dolby International Ab Efficient combined harmonic transposition
US8983852B2 (en) 2009-05-27 2015-03-17 Dolby International Ab Efficient combined harmonic transposition
TWI556227B (zh) * 2009-05-27 2016-11-01 杜比國際公司 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體
TWI484481B (zh) * 2009-05-27 2015-05-11 杜比國際公司 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體
AU2015264887B2 (en) * 2009-05-27 2017-12-07 Dolby International Ab Efficient Combined Harmonic Transposition
CN103971699A (zh) * 2009-05-27 2014-08-06 杜比国际公司 高效组合谐波转置
US11200874B2 (en) 2009-05-27 2021-12-14 Dolby International Ab Efficient combined harmonic transposition
EP4481735A1 (en) 2009-05-27 2024-12-25 Dolby International AB Efficient combined harmonic transposition
US10657937B2 (en) 2009-05-27 2020-05-19 Dolby International Ab Efficient combined harmonic transposition
US9881597B2 (en) 2009-05-27 2018-01-30 Dolby International Ab Efficient combined harmonic transposition
EP4481734A1 (en) 2009-05-27 2024-12-25 Dolby International AB Efficient combined harmonic transposition
CN102473414A (zh) * 2009-06-29 2012-05-23 弗兰霍菲尔运输应用研究公司 带宽扩展编码器、带宽扩展解码器和相位声码器
RU2563164C2 (ru) * 2009-06-29 2015-09-20 Фраунхофер-Гезелльшафт цур Фёердерунг дер ангевандтен Форшунг Е.Ф. Кодер расширения полосы пропускания, декодер расширения полосы пропускания и фазовый вокодер
AU2014201331B2 (en) * 2009-06-29 2015-10-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Bandwidth extension encoder, bandwidth extension decoder and phase vocoder
WO2011000780A1 (en) * 2009-06-29 2011-01-06 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Bandwidth extension encoder, bandwidth extension decoder and phase vocoder
EP2273493A1 (en) * 2009-06-29 2011-01-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Bandwidth extension encoder, bandwidth extension decoder and phase vocoder
CN102473414B (zh) * 2009-06-29 2013-11-06 弗兰霍菲尔运输应用研究公司 带宽扩展编码器、带宽扩展解码器和相位声码器
AU2010268160B2 (en) * 2009-06-29 2014-03-06 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Bandwidth extension encoder, bandwidth extension decoder and phase vocoder
KR101701759B1 (ko) 2009-09-18 2017-02-03 돌비 인터네셔널 에이비 입력 신호를 전위시키기 위한 시스템 및 방법, 및 상기 방법을 수행하기 위한 컴퓨터 프로그램이 기록된 컴퓨터 판독가능 저장 매체
KR101405022B1 (ko) 2009-09-18 2014-06-10 돌비 인터네셔널 에이비 입력 신호를 전위시키기 위한 시스템 및 방법, 상기 방법을 수행하는 소프트웨어 프로그램 및 컴퓨터 프로그램 제품을 포함하는 저장 매체
US12136429B2 (en) 2009-09-18 2024-11-05 Dolby International Ab Harmonic transposition in an audio coding method and system
US11837246B2 (en) 2009-09-18 2023-12-05 Dolby International Ab Harmonic transposition in an audio coding method and system
KR20140027533A (ko) * 2009-09-18 2014-03-06 돌비 인터네셔널 에이비 입력 신호를 전위시키기 위한 시스템 및 방법, 상기 방법을 수행하는 소프트웨어 프로그램 및 컴퓨터 프로그램 제품을 포함하는 저장 매체
EP4560629A1 (en) 2009-10-21 2025-05-28 Dolby International AB Oversampling in a combined transposer filter bank
EP4152320A1 (en) 2009-10-21 2023-03-22 Dolby International AB Oversampling in a combined transposer filter bank
EP4276823A2 (en) 2009-10-21 2023-11-15 Dolby International AB Oversampling in a combined transposer filter bank
KR101309671B1 (ko) * 2009-10-21 2013-09-23 돌비 인터네셔널 에이비 결합된 트랜스포저 필터 뱅크에서의 오버샘플링
US9384750B2 (en) 2009-10-21 2016-07-05 Dolby International Ab Oversampling in a combined transposer filterbank
US8886346B2 (en) 2009-10-21 2014-11-11 Dolby International Ab Oversampling in a combined transposer filter bank
CN102576541B (zh) * 2009-10-21 2013-09-18 杜比国际公司 组合换位滤波器组的过采样
EP2360688A4 (en) * 2009-10-21 2013-09-04 Panasonic Corp DEVICE FOR PROCESSING SOUND SIGNALS, SOUND ENCODING DEVICE AND SOUND WRENCHING DEVICE
US10186280B2 (en) 2009-10-21 2019-01-22 Dolby International Ab Oversampling in a combined transposer filterbank
US10947594B2 (en) 2009-10-21 2021-03-16 Dolby International Ab Oversampling in a combined transposer filter bank
EP4276823A3 (en) * 2009-10-21 2023-12-20 Dolby International AB Oversampling in a combined transposer filter bank
US9026236B2 (en) 2009-10-21 2015-05-05 Panasonic Intellectual Property Corporation Of America Audio signal processing apparatus, audio coding apparatus, and audio decoding apparatus
US9830928B2 (en) 2009-10-21 2017-11-28 Dolby International Ab Oversampling in a combined transposer filterbank
EP4648048A3 (en) * 2009-10-21 2025-11-19 Dolby International AB Oversampling in a combined transposer filter bank
EP4648048A2 (en) 2009-10-21 2025-11-12 Dolby International AB Oversampling in a combined transposer filter bank
EP2704143A3 (en) * 2009-10-21 2014-04-02 Panasonic Corporation Audio signal processing apparatus, audio coding apparatus, and audio decoding apparatus
EP2800094A1 (en) 2009-10-21 2014-11-05 Dolby International AB Oversampling in a combined transposer filter bank
EP3723090A1 (en) 2009-10-21 2020-10-14 Dolby International AB Oversampling in a combined transposer filter bank
US10584386B2 (en) 2009-10-21 2020-03-10 Dolby International Ab Oversampling in a combined transposer filterbank
CN102576541A (zh) * 2009-10-21 2012-07-11 杜比国际公司 组合换位滤波器组的过采样
RU2494478C1 (ru) * 2009-10-21 2013-09-27 Долби Интернешнл Аб Передискретизация в комбинированном банке фильтров транспозитора
US11993817B2 (en) 2009-10-21 2024-05-28 Dolby International Ab Oversampling in a combined transposer filterbank
CN103559890A (zh) * 2009-10-21 2014-02-05 杜比国际公司 组合换位滤波器组的过采样
US11591657B2 (en) 2009-10-21 2023-02-28 Dolby International Ab Oversampling in a combined transposer filter bank
CN103559889A (zh) * 2009-10-21 2014-02-05 杜比国际公司 组合换位滤波器组的过采样
EP4542546A2 (en) 2009-10-21 2025-04-23 Dolby International AB Oversampling in a combined transposer filter bank
EP3291231A1 (en) 2009-10-21 2018-03-07 Dolby International AB Oversampling in a combined transposer filterbank
EP3998606A1 (en) 2009-10-21 2022-05-18 Dolby International AB Oversampling in a combined transposer filter bank
TWI509596B (zh) * 2009-10-21 2015-11-21 Panasonic Ip Corp America A sound signal processing device, a sound coding device, and a sound decoding device
WO2011047887A1 (en) * 2009-10-21 2011-04-28 Dolby International Ab Oversampling in a combined transposer filter bank
EP4542546A3 (en) * 2009-10-21 2025-04-30 Dolby International AB Oversampling in a combined transposer filter bank
EP4451267A1 (en) 2009-10-21 2024-10-23 Dolby International AB Oversampling in a combined transposer filter bank
AU2025201819B2 (en) * 2010-01-19 2025-09-04 Dolby International Ab Improved Subband Block Based Harmonic Transposition
AU2024201052B2 (en) * 2010-01-19 2025-04-10 Dolby International Ab Improved subband block based harmonic transposition
EP4435779A3 (en) * 2010-01-19 2024-10-09 Dolby International AB Improved subband block based harmonic transposition
EP4557284A1 (en) 2010-01-19 2025-05-21 Dolby International AB Improved subband block based harmonic transposition
AU2011208899B2 (en) * 2010-01-19 2014-02-13 Dolby International Ab Improved subband block based harmonic transposition
EP4250290A1 (en) 2010-01-19 2023-09-27 Dolby International AB Improved subband block based harmonic transposition
EP4435778A3 (en) * 2010-01-19 2024-10-09 Dolby International AB Improved subband block based harmonic transposition
RU2772356C2 (ru) * 2010-01-19 2022-05-19 Долби Интернешнл Аб Усовершенствованное гармоническое преобразование на основе блока поддиапазонов
EP4435778A2 (en) 2010-01-19 2024-09-25 Dolby International AB Improved subband block based harmonic transposition
EP4435779A2 (en) 2010-01-19 2024-09-25 Dolby International AB Improved subband block based harmonic transposition
EP3564954A1 (en) 2010-01-19 2019-11-06 Dolby International AB Improved subband block based harmonic transposition
EP4120263A1 (en) 2010-01-19 2023-01-18 Dolby International AB Improved subband block based harmonic transposition
EP4120264A1 (en) 2010-01-19 2023-01-18 Dolby International AB Improved subband block based harmonic transposition
EP3564955A1 (en) 2010-01-19 2019-11-06 Dolby International AB Improved subband block based harmonic transposition
EP4531041A1 (en) 2010-01-19 2025-04-02 Dolby International AB Improved subband block based harmonic transposition
RU2518682C2 (ru) * 2010-01-19 2014-06-10 Долби Интернешнл Аб Усовершенствованное гармоническое преобразование на основе блока поддиапазонов
US12165669B2 (en) 2010-01-19 2024-12-10 Dolby International Ab Subband block based harmonic transposition
US9741362B2 (en) 2010-01-19 2017-08-22 Dolby International Ab Subband block based harmonic transposition
AU2022200874B2 (en) * 2010-01-19 2022-06-16 Dolby International Ab Improved Subband Block Based Harmonic Transposition
EP4597493A1 (en) 2010-01-19 2025-08-06 Dolby International AB Improved subband block based harmonic transposition
RU2644527C2 (ru) * 2010-01-19 2018-02-12 Долби Интернешнл Аб Усовершенствованное гармоническое преобразование на основе блока поддиапазонов
AU2019240701B2 (en) * 2010-01-19 2021-11-11 Dolby International Ab Improved Subband Block Based Harmonic Transposition
US11935555B2 (en) 2010-01-19 2024-03-19 Dolby International Ab Subband block based harmonic transposition
US11646047B2 (en) 2010-01-19 2023-05-09 Dolby International Ab Subband block based harmonic transposition
AU2017206142B2 (en) * 2010-01-19 2019-07-11 Dolby International Ab Improved Subband Block Based Harmonic Transposition
US11341984B2 (en) 2010-01-19 2022-05-24 Dolby International Ab Subband block based harmonic transposition
WO2011089029A1 (en) 2010-01-19 2011-07-28 Dolby International Ab Improved subband block based harmonic transposition
US9858945B2 (en) 2010-01-19 2018-01-02 Dolby International Ab Subband block based harmonic transposition
EP3806096A1 (en) 2010-01-19 2021-04-14 Dolby International AB Improved subband block based harmonic transposition
RU2800676C1 (ru) * 2010-01-19 2023-07-26 Долби Интернешнл Аб Усовершенствованное гармоническое преобразование на основе блока поддиапазонов
RU2665298C1 (ru) * 2010-01-19 2018-08-28 Долби Интернешнл Аб Усовершенствованное гармоническое преобразование на основе блока поддиапазонов
US10109296B2 (en) 2010-01-19 2018-10-23 Dolby International Ab Subband block based harmonic transposition
AU2014200151B2 (en) * 2010-01-19 2015-04-16 Dolby International Ab Improved subband block based harmonic transposition
US9431025B2 (en) 2010-01-19 2016-08-30 Dolby International Ab Subband block based harmonic transposition
CN104318929A (zh) * 2010-01-19 2015-01-28 杜比国际公司 子带处理单元以及生成合成子带信号的方法
US10699728B2 (en) 2010-01-19 2020-06-30 Dolby International Ab Subband block based harmonic transposition
US8898067B2 (en) 2010-01-19 2014-11-25 Dolby International Ab Subband block based harmonic transposition
AU2023202547B2 (en) * 2010-01-19 2023-11-23 Dolby International Ab Improved Subband Block Based Harmonic Transposition
US8949116B2 (en) 2010-01-28 2015-02-03 Samsung Electronics Co., Ltd. Signal processing method and apparatus for amplifying speech signals
EP2360686A1 (en) * 2010-01-28 2011-08-24 Samsung Electronics Co., Ltd. Signal processing method and apparatus for enhancing speech signals
US10770079B2 (en) 2010-03-09 2020-09-08 Franhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an input audio signal using cascaded filterbanks
EP4148729A1 (en) 2010-03-09 2023-03-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and program for downsampling an audio signal
EP4661004A2 (en) 2010-03-09 2025-12-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for downsampling an audio signal
US10032458B2 (en) 2010-03-09 2018-07-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an input audio signal using cascaded filterbanks
EP3570278A1 (en) 2010-03-09 2019-11-20 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Apparatus and method for processing an input audio signal using cascaded filterbanks
US11495236B2 (en) 2010-03-09 2022-11-08 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an input audio signal using cascaded filterbanks
RU2586846C2 (ru) * 2010-03-09 2016-06-10 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Устройство и способ обработки входного звукового сигнала с помощью каскадированного банка фильтров
US12308036B2 (en) 2010-03-09 2025-05-20 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an input audio signal using cascaded filterbanks
US20170194011A1 (en) * 2010-03-09 2017-07-06 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an input audio signal using cascaded filterbanks
US9905235B2 (en) 2010-03-09 2018-02-27 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Device and method for improved magnitude response and temporal alignment in a phase vocoder based bandwidth extension method for audio signals
WO2011110500A1 (en) 2010-03-09 2011-09-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing an input audio signal using cascaded filterbanks
US9318127B2 (en) 2010-03-09 2016-04-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Device and method for improved magnitude response and temporal alignment in a phase vocoder based bandwidth extension method for audio signals
WO2011110499A1 (en) 2010-03-09 2011-09-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an audio signal using patch border alignment
EP4475124A2 (en) 2010-03-09 2024-12-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for downsampling an audio signal
US11894002B2 (en) 2010-03-09 2024-02-06 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Apparatus and method for processing an input audio signal using cascaded filterbanks
US9240196B2 (en) 2010-03-09 2016-01-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for handling transient sound events in audio signals when changing the replay speed or pitch
US9305557B2 (en) 2010-03-09 2016-04-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an audio signal using patch border alignment
US9792915B2 (en) 2010-03-09 2017-10-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an input audio signal using cascaded filterbanks
US20130090933A1 (en) * 2010-03-09 2013-04-11 Lars Villemoes Apparatus and method for processing an input audio signal using cascaded filterbanks
US9805735B2 (en) 2010-04-16 2017-10-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for generating a wideband signal using guided bandwidth extension and blind bandwidth extension
US9799342B2 (en) 2010-06-09 2017-10-24 Panasonic Intellectual Property Corporation Of America Bandwidth extension method, bandwidth extension apparatus, program, integrated circuit, and audio decoding apparatus
US9093080B2 (en) 2010-06-09 2015-07-28 Panasonic Intellectual Property Corporation Of America Bandwidth extension method, bandwidth extension apparatus, program, integrated circuit, and audio decoding apparatus
US10566001B2 (en) 2010-06-09 2020-02-18 Panasonic Intellectual Property Corporation Of America Bandwidth extension method, bandwidth extension apparatus, program, integrated circuit, and audio decoding apparatus
US11341977B2 (en) 2010-06-09 2022-05-24 Panasonic Intellectual Property Corporation Of America Bandwidth extension method, bandwidth extension apparatus, program, integrated circuit, and audio decoding apparatus
US11749289B2 (en) 2010-06-09 2023-09-05 Panasonic Intellectual Property Corporation Of America Bandwidth extension method, bandwidth extension apparatus, program, integrated circuit, and audio decoding apparatus
US9911431B2 (en) 2010-07-19 2018-03-06 Dolby International Ab Processing of audio signals during high frequency reconstruction
EP3291230A1 (en) 2010-07-19 2018-03-07 Dolby International AB Processing of audio signals during high frequency reconstruction
US11568880B2 (en) 2010-07-19 2023-01-31 Dolby International Ab Processing of audio signals during high frequency reconstruction
EP3285258A1 (en) 2010-07-19 2018-02-21 Dolby International AB Processing of audio signals during high frequency reconstruction
EP2765572A1 (en) 2010-07-19 2014-08-13 Dolby International AB Processing of audio signals during high frequency reconstruction
US10283122B2 (en) 2010-07-19 2019-05-07 Dolby International Ab Processing of audio signals during high frequency reconstruction
US12106762B2 (en) 2010-07-19 2024-10-01 Dolby International Ab Processing of audio signals during high frequency reconstruction
US12106761B2 (en) 2010-07-19 2024-10-01 Dolby International Ab Processing of audio signals during high frequency reconstruction
EP4210051A1 (en) 2010-07-19 2023-07-12 Dolby International AB Processing of audio signals during high frequency reconstruction
US11031019B2 (en) 2010-07-19 2021-06-08 Dolby International Ab Processing of audio signals during high frequency reconstruction
EP4016527A1 (en) 2010-07-19 2022-06-22 Dolby International AB Processing of audio signals during high frequency reconstruction
WO2012010494A1 (en) 2010-07-19 2012-01-26 Dolby International Ab Processing of audio signals during high frequency reconstruction
RU2659487C2 (ru) * 2010-07-19 2018-07-02 Долби Интернешнл Аб Кодер и декодер звукового сигнала, способ генерирования управляющих данных из звукового сигнала и способ декодирования битового потока
US12131742B2 (en) 2010-07-19 2024-10-29 Dolby International Ab Processing of audio signals during high frequency reconstruction
US12002476B2 (en) 2010-07-19 2024-06-04 Dolby International Ab Processing of audio signals during high frequency reconstruction
EP3288032A1 (en) 2010-07-19 2018-02-28 Dolby International AB Processing of audio signals during high frequency reconstruction
US9640184B2 (en) 2010-07-19 2017-05-02 Dolby International Ab Processing of audio signals during high frequency reconstruction
EP3544007A1 (en) 2010-07-19 2019-09-25 Dolby International AB Processing of audio signals during high frequency reconstruction
EP3544008A1 (en) 2010-07-19 2019-09-25 Dolby International AB Processing of audio signals during high frequency reconstruction
EP3544009A1 (en) 2010-07-19 2019-09-25 Dolby International AB Processing of audio signals during high frequency reconstruction
US9117459B2 (en) 2010-07-19 2015-08-25 Dolby International Ab Processing of audio signals during high frequency reconstruction
EP3723089A1 (en) 2010-07-19 2020-10-14 Dolby International AB Processing of audio signals during high frequency reconstruction
RU2758466C2 (ru) * 2010-07-19 2021-10-28 Долби Интернешнл Аб Система и способ для генерирования ряда сигналов высокочастотных поддиапазонов
RU2765345C2 (ru) * 2010-08-03 2022-01-28 Сони Корпорейшн Устройство и способ обработки сигнала и программа
RU2562434C2 (ru) * 2010-08-12 2015-09-10 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Передискретизация выходных сигналов аудиокодеков на основе квадратурных зеркальных фильтров (qmf)
US11961531B2 (en) 2010-08-12 2024-04-16 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codec
US9595265B2 (en) 2010-08-12 2017-03-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codecs
US11790928B2 (en) 2010-08-12 2023-10-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codecs
US12154583B2 (en) 2010-08-12 2024-11-26 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codecs
US10311886B2 (en) 2010-08-12 2019-06-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codecs
US11361779B2 (en) 2010-08-12 2022-06-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codecs
US11475906B2 (en) 2010-08-12 2022-10-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codec
US11676615B2 (en) 2010-08-12 2023-06-13 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codec
US11475905B2 (en) 2010-08-12 2022-10-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codec
US11810584B2 (en) 2010-08-12 2023-11-07 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codecs
US11804232B2 (en) 2010-08-12 2023-10-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Resampling output signals of QMF based audio codecs
US11817110B2 (en) 2010-09-16 2023-11-14 Dolby International Ab Cross product enhanced subband block based harmonic transposition
US12033645B2 (en) 2010-09-16 2024-07-09 Dolby International Ab Cross product enhanced subband block based harmonic transposition
US10192562B2 (en) 2010-09-16 2019-01-29 Dolby International Ab Cross product enhanced subband block based harmonic transposition
EP4651132A1 (en) 2010-09-16 2025-11-19 Dolby International AB Cross product enhanced subband block based harmonic trans-position
EP4513484A1 (en) 2010-09-16 2025-02-26 Dolby International AB Cross product enhanced subband block based harmonic transposition
US11355133B2 (en) 2010-09-16 2022-06-07 Dolby International Ab Cross product enhanced subband block based harmonic transposition
EP4145445A1 (en) 2010-09-16 2023-03-08 Dolby International AB Cross product enhanced subband block based harmonic transposition
US10706863B2 (en) 2010-09-16 2020-07-07 Dolby International Ab Cross product enhanced subband block based harmonic transposition
EP3503100A1 (en) 2010-09-16 2019-06-26 Dolby International AB Cross product enhanced subband block based harmonic transposition
US9172342B2 (en) 2010-09-16 2015-10-27 Dolby International Ab Cross product enhanced subband block based harmonic transposition
EP4506939A2 (en) 2010-09-16 2025-02-12 Dolby International AB Cross product enhanced subband block based harmonic trans-position
US12266374B2 (en) 2010-09-16 2025-04-01 Dolby International Ab Cross product enhanced subband block based harmonic transposition
EP4148732A1 (en) 2010-09-16 2023-03-15 Dolby International AB Cross product enhanced subband block based harmonic transposition
US9735750B2 (en) 2010-09-16 2017-08-15 Dolby International Ab Cross product enhanced subband block based harmonic transposition
EP4489000A2 (en) 2010-09-16 2025-01-08 Dolby International AB Cross product enhanced subband block based harmonic trans-position
EP4489001A2 (en) 2010-09-16 2025-01-08 Dolby International AB Cross product enhanced subband block based harmonic transposition
EP3975177A1 (en) 2010-09-16 2022-03-30 Dolby International AB Cross product enhanced subband block based harmonic transposition
US9940941B2 (en) 2010-09-16 2018-04-10 Dolby International Ab Cross product enhanced subband block based harmonic transposition
EP3975178A1 (en) 2010-09-16 2022-03-30 Dolby International AB Cross product enhanced subband block based harmonic transposition
US10446161B2 (en) 2010-09-16 2019-10-15 Dolby International Ab Cross product enhanced subband block based harmonic transposition
JP2013050543A (ja) * 2011-08-30 2013-03-14 Fujitsu Ltd 符号化方法、符号化装置および符号化プログラム
EP2704142A1 (en) 2012-08-27 2014-03-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for reproducing an audio signal, apparatus and method for generating a coded audio signal, computer program and coded audio signal
US9305564B2 (en) 2012-08-27 2016-04-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for reproducing an audio signal, apparatus and method for generating a coded audio signal, computer program and coded audio signal
US10580415B2 (en) 2012-09-17 2020-03-03 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal
US9997162B2 (en) 2012-09-17 2018-06-12 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal
US9646624B2 (en) 2013-01-29 2017-05-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for providing an encoded audio information, method for providing a decoded audio information, computer program and encoded representation using a signal-adaptive bandwidth extension
EP3745397A1 (en) * 2014-03-24 2020-12-02 Sony Corporation Decoding device and decoding method, and program
US10930292B2 (en) 2014-07-01 2021-02-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio processor and method for processing an audio signal using horizontal phase correction
US10192561B2 (en) 2014-07-01 2019-01-29 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio processor and method for processing an audio signal using horizontal phase correction
US10140997B2 (en) 2014-07-01 2018-11-27 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Decoder and method for decoding an audio signal, encoder and method for encoding an audio signal
RU2676899C2 (ru) * 2014-07-01 2019-01-11 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Модуль вычисления и способ для определения данных фазовой коррекции для аудиосигнала
US10770083B2 (en) 2014-07-01 2020-09-08 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio processor and method for processing an audio signal using vertical phase correction
US10283130B2 (en) 2014-07-01 2019-05-07 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio processor and method for processing an audio signal using vertical phase correction
US10529346B2 (en) 2014-07-01 2020-01-07 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Calculator and method for determining phase correction data for an audio signal
US11100939B2 (en) 2015-12-14 2021-08-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an encoded audio signal by a mapping drived by SBR from QMF onto MCLT
EP3182411A1 (en) 2015-12-14 2017-06-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing an encoded audio signal
US11862184B2 (en) 2015-12-14 2024-01-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an encoded audio signal by upsampling a core audio signal to upsampled spectra with higher frequencies and spectral width
WO2017102560A1 (en) 2015-12-14 2017-06-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing an encoded audio signal
RU2687872C1 (ru) * 2015-12-14 2019-05-16 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Устройство и способ для обработки кодированного звукового сигнала
NO343581B1 (no) * 2017-03-01 2019-04-08 Dolby Int Ab Fremgangsmåte, anordning og program til spektralinnhyllingsjustering
RU2813317C1 (ru) * 2023-07-20 2024-02-12 Долби Интернешнл Аб Усовершенствованное гармоническое преобразование на основе блока поддиапазонов
USRE50718E1 (en) 2023-11-22 2025-12-30 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating a bandwidth extended signal

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US7283955B2 (en) 2007-10-16
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