HK1078673A1 - Method and apparatus for processing an audio signal, generating a reconstructed audio signal and medium - Google Patents

Method and apparatus for processing an audio signal, generating a reconstructed audio signal and medium

Info

Publication number
HK1078673A1
HK1078673A1 HK05110368A HK05110368A HK1078673A1 HK 1078673 A1 HK1078673 A1 HK 1078673A1 HK 05110368 A HK05110368 A HK 05110368A HK 05110368 A HK05110368 A HK 05110368A HK 1078673 A1 HK1078673 A1 HK 1078673A1
Authority
HK
Hong Kong
Prior art keywords
baseband
audio signal
spectral components
signal
generating
Prior art date
Application number
HK05110368A
Other languages
English (en)
Inventor
Michael Mead Truman
Mark Stuart Vinton
Original Assignee
Dolby Lab Licensing Corp
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
Application filed by Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of HK1078673A1 publication Critical patent/HK1078673A1/xx

Links

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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G10L19/0208—Subband vocoders
    • 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
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/002—Dynamic bit allocation
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/012—Comfort noise or silence coding
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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
    • 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
    • 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
    • G10L21/0388—Details of processing therefor
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Stereophonic System (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Ceramic Products (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
HK05110368A 2002-03-28 2005-11-18 Method and apparatus for processing an audio signal, generating a reconstructed audio signal and medium HK1078673A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/113,858 US20030187663A1 (en) 2002-03-28 2002-03-28 Broadband frequency translation for high frequency regeneration
PCT/US2003/008895 WO2003083834A1 (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation

Publications (1)

Publication Number Publication Date
HK1078673A1 true HK1078673A1 (en) 2006-03-17

Family

ID=28453693

Family Applications (2)

Application Number Title Priority Date Filing Date
HK05110368A HK1078673A1 (en) 2002-03-28 2005-11-18 Method and apparatus for processing an audio signal, generating a reconstructed audio signal and medium
HK08103939.0A HK1114233A1 (en) 2002-03-28 2008-04-09 A method for generating a reconstructed signal

Family Applications After (1)

Application Number Title Priority Date Filing Date
HK08103939.0A HK1114233A1 (en) 2002-03-28 2008-04-09 A method for generating a reconstructed signal

Country Status (16)

Country Link
US (19) US20030187663A1 (es)
EP (2) EP2194528B1 (es)
JP (1) JP4345890B2 (es)
KR (1) KR101005731B1 (es)
CN (2) CN100338649C (es)
AT (1) ATE511180T1 (es)
AU (1) AU2003239126B2 (es)
CA (1) CA2475460C (es)
HK (2) HK1078673A1 (es)
MX (1) MXPA04009408A (es)
MY (1) MY140567A (es)
PL (1) PL208846B1 (es)
SG (8) SG10201710913TA (es)
SI (1) SI2194528T1 (es)
TW (1) TWI319180B (es)
WO (1) WO2003083834A1 (es)

Families Citing this family (163)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7742927B2 (en) * 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
AUPR433901A0 (en) 2001-04-10 2001-05-17 Lake Technology Limited High frequency signal construction method
US7116787B2 (en) * 2001-05-04 2006-10-03 Agere Systems Inc. Perceptual synthesis of auditory scenes
US7292901B2 (en) * 2002-06-24 2007-11-06 Agere Systems Inc. Hybrid multi-channel/cue coding/decoding of audio signals
US20030035553A1 (en) * 2001-08-10 2003-02-20 Frank Baumgarte Backwards-compatible perceptual coding of spatial cues
US7583805B2 (en) * 2004-02-12 2009-09-01 Agere Systems Inc. Late reverberation-based synthesis of auditory scenes
US7644003B2 (en) * 2001-05-04 2010-01-05 Agere Systems Inc. Cue-based audio coding/decoding
US20030187663A1 (en) 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
US7447631B2 (en) 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
US20040138876A1 (en) * 2003-01-10 2004-07-15 Nokia Corporation Method and apparatus for artificial bandwidth expansion in speech processing
EP1482482A1 (de) * 2003-05-27 2004-12-01 Siemens Aktiengesellschaft Frequenzerweiterung für Synthesizer
ATE486348T1 (de) 2003-06-30 2010-11-15 Koninkl Philips Electronics Nv Verbesserung der qualität von dekodierten audio mittels hinzufügen von geräusch
US20050004793A1 (en) * 2003-07-03 2005-01-06 Pasi Ojala Signal adaptation for higher band coding in a codec utilizing band split coding
US7461003B1 (en) * 2003-10-22 2008-12-02 Tellabs Operations, Inc. Methods and apparatus for improving the quality of speech signals
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
US6980933B2 (en) * 2004-01-27 2005-12-27 Dolby Laboratories Licensing Corporation Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
US7805313B2 (en) * 2004-03-04 2010-09-28 Agere Systems Inc. Frequency-based coding of channels in parametric multi-channel coding systems
DE102004021403A1 (de) * 2004-04-30 2005-11-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Informationssignalverarbeitung durch Modifikation in der Spektral-/Modulationsspektralbereichsdarstellung
US7512536B2 (en) * 2004-05-14 2009-03-31 Texas Instruments Incorporated Efficient filter bank computation for audio coding
WO2005111568A1 (ja) * 2004-05-14 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
JP2008504566A (ja) * 2004-06-28 2008-02-14 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 音響送信装置、音響受信装置、周波数範囲適応装置、音響信号送信方法
WO2006018748A1 (en) * 2004-08-17 2006-02-23 Koninklijke Philips Electronics N.V. Scalable audio coding
TWI497485B (zh) * 2004-08-25 2015-08-21 Dolby Lab Licensing Corp 用以重塑經合成輸出音訊信號之時域包絡以更接近輸入音訊信號之時域包絡的方法
TWI393121B (zh) * 2004-08-25 2013-04-11 Dolby Lab Licensing Corp 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
PL2200024T3 (pl) 2004-08-30 2013-08-30 Qualcomm Inc Sposób i urządzenie do adaptacyjnego bufora eliminującego jitter
US8085678B2 (en) 2004-10-13 2011-12-27 Qualcomm Incorporated Media (voice) playback (de-jitter) buffer adjustments based on air interface
US8204261B2 (en) * 2004-10-20 2012-06-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Diffuse sound shaping for BCC schemes and the like
US7720230B2 (en) * 2004-10-20 2010-05-18 Agere Systems, Inc. Individual channel shaping for BCC schemes and the like
JP5106115B2 (ja) 2004-11-30 2012-12-26 アギア システムズ インコーポレーテッド オブジェクト・ベースのサイド情報を用いる空間オーディオのパラメトリック・コーディング
US7761304B2 (en) * 2004-11-30 2010-07-20 Agere Systems Inc. Synchronizing parametric coding of spatial audio with externally provided downmix
US7787631B2 (en) * 2004-11-30 2010-08-31 Agere Systems Inc. Parametric coding of spatial audio with cues based on transmitted channels
US7903824B2 (en) * 2005-01-10 2011-03-08 Agere Systems Inc. Compact side information for parametric coding of spatial audio
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
US8355907B2 (en) 2005-03-11 2013-01-15 Qualcomm Incorporated Method and apparatus for phase matching frames in vocoders
US8155965B2 (en) 2005-03-11 2012-04-10 Qualcomm Incorporated Time warping frames inside the vocoder by modifying the residual
EP1829424B1 (en) 2005-04-15 2009-01-21 Dolby Sweden AB Temporal envelope shaping of decorrelated signals
US8311840B2 (en) * 2005-06-28 2012-11-13 Qnx Software Systems Limited Frequency extension of harmonic signals
JP4554451B2 (ja) * 2005-06-29 2010-09-29 京セラ株式会社 通信装置、通信システム、変調方法、及びプログラム
DE102005032724B4 (de) 2005-07-13 2009-10-08 Siemens Ag Verfahren und Vorrichtung zur künstlichen Erweiterung der Bandbreite von Sprachsignalen
FR2891100B1 (fr) * 2005-09-22 2008-10-10 Georges Samake Codec audio utilisant la transformation de fourier rapide, le recouvrement partiel et une decomposition en deux plans basee sur l'energie.
KR100717058B1 (ko) * 2005-11-28 2007-05-14 삼성전자주식회사 고주파 성분 복원 방법 및 그 장치
JP5034228B2 (ja) * 2005-11-30 2012-09-26 株式会社Ｊｖｃケンウッド 補間装置、音再生装置、補間方法および補間プログラム
US8126706B2 (en) * 2005-12-09 2012-02-28 Acoustic Technologies, Inc. Music detector for echo cancellation and noise reduction
EP2005424A2 (fr) * 2006-03-20 2008-12-24 France Télécom Procede de post-traitement d'un signal dans un decodeur audio
US20080076374A1 (en) * 2006-09-25 2008-03-27 Avraham Grenader System and method for filtering of angle modulated signals
AU2007300814B2 (en) * 2006-09-29 2010-05-13 Lg Electronics Inc. Methods and apparatuses for encoding and decoding object-based audio signals
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
KR101434198B1 (ko) * 2006-11-17 2014-08-26 삼성전자주식회사 신호 복호화 방법
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
JP4967618B2 (ja) * 2006-11-24 2012-07-04 富士通株式会社 復号化装置および復号化方法
CN101237317B (zh) * 2006-11-27 2010-09-29 华为技术有限公司 确定发送频谱的方法和装置
EP1947644B1 (en) * 2007-01-18 2019-06-19 Nuance Communications, Inc. Method and apparatus for providing an acoustic signal with extended band-width
EP2143101B1 (en) * 2007-03-30 2020-03-11 Electronics and Telecommunications Research Institute Apparatus and method for coding and decoding multi object audio signal with multi channel
JP5183741B2 (ja) * 2007-08-27 2013-04-17 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ノイズ補充と帯域拡張との間の遷移周波数の適合
EP2186089B1 (en) * 2007-08-27 2018-10-03 Telefonaktiebolaget LM Ericsson (publ) Method and device for perceptual spectral decoding of an audio signal including filling of spectral holes
KR101161866B1 (ko) * 2007-11-06 2012-07-04 노키아 코포레이션 오디오 코딩 장치 및 그 방법
KR101238239B1 (ko) * 2007-11-06 2013-03-04 노키아 코포레이션 인코더
KR100970446B1 (ko) * 2007-11-21 2010-07-16 한국전자통신연구원 주파수 확장을 위한 가변 잡음레벨 결정 장치 및 그 방법
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
US8433582B2 (en) * 2008-02-01 2013-04-30 Motorola Mobility Llc Method and apparatus for estimating high-band energy in a bandwidth extension system
US20090201983A1 (en) * 2008-02-07 2009-08-13 Motorola, Inc. Method and apparatus for estimating high-band energy in a bandwidth extension system
KR20090110244A (ko) * 2008-04-17 2009-10-21 삼성전자주식회사 오디오 시맨틱 정보를 이용한 오디오 신호의 부호화/복호화 방법 및 그 장치
US8005152B2 (en) 2008-05-21 2011-08-23 Samplify Systems, Inc. Compression of baseband signals in base transceiver systems
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
US8463412B2 (en) * 2008-08-21 2013-06-11 Motorola Mobility Llc Method and apparatus to facilitate determining signal bounding frequencies
CN101727906B (zh) * 2008-10-29 2012-02-01 华为技术有限公司 高频带信号的编解码方法及装置
CN101770775B (zh) * 2008-12-31 2011-06-22 华为技术有限公司 信号处理方法及装置
US8463599B2 (en) * 2009-02-04 2013-06-11 Motorola Mobility Llc Bandwidth extension method and apparatus for a modified discrete cosine transform audio coder
JP5387076B2 (ja) * 2009-03-17 2014-01-15 ヤマハ株式会社 音処理装置およびプログラム
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
RU2452044C1 (ru) 2009-04-02 2012-05-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Устройство, способ и носитель с программным кодом для генерирования представления сигнала с расширенным диапазоном частот на основе представления входного сигнала с использованием сочетания гармонического расширения диапазона частот и негармонического расширения диапазона частот
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
AU2012204076B2 (en) * 2009-04-03 2013-12-12 Ntt Docomo, Inc. Speech encoding device, speech decoding device, speech encoding method, speech decoding method, speech encoding program, and speech decoding program
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
US11657788B2 (en) 2009-05-27 2023-05-23 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
TWI401923B (zh) * 2009-06-06 2013-07-11 Generalplus Technology Inc 適應性時脈重建方法與裝置以及進行音頻解碼方法
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
PL4152320T3 (pl) 2009-10-21 2024-02-19 Dolby International Ab Nadpróbkowanie w banku filtrów połączonym z modułem transpozycji
US8699727B2 (en) * 2010-01-15 2014-04-15 Apple Inc. Visually-assisted mixing of audio using a spectral analyzer
KR20240121348A (ko) 2010-01-19 2024-08-08 돌비 인터네셔널 에이비 고조파 전위에 기초하여 개선된 서브밴드 블록
TWI557723B (zh) 2010-02-18 2016-11-11 杜比實驗室特許公司 解碼方法及系統
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
SG183966A1 (en) 2010-03-09 2012-10-30 Fraunhofer Ges Forschung Improved magnitude response and temporal alignment in phase vocoder based bandwidth extension for audio signals
PL3570278T3 (pl) * 2010-03-09 2023-03-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Rekonstrukcja wysokiej częstotliwości wejściowego sygnału audio przy użyciu kaskadowych banków filtrów
CA2792368C (en) 2010-03-09 2016-04-26 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
JP5651980B2 (ja) * 2010-03-31 2015-01-14 ソニー株式会社 復号装置、復号方法、およびプログラム
JP5652658B2 (ja) 2010-04-13 2015-01-14 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
JP6103324B2 (ja) * 2010-04-13 2017-03-29 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
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
US9443534B2 (en) 2010-04-14 2016-09-13 Huawei Technologies Co., Ltd. Bandwidth extension system and approach
CN103069484B (zh) * 2010-04-14 2014-10-08 华为技术有限公司 时/频二维后处理
BR112012026502B1 (pt) * 2010-04-16 2022-10-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V Aparelho, método para gerar um sinal de banda larga usando extensão de largura de guiada e extensão de largura de banda cega
TW201138354A (en) * 2010-04-27 2011-11-01 Ind Tech Res Inst Soft demapping method and apparatus thereof and communication system thereof
CN102237954A (zh) * 2010-04-30 2011-11-09 财团法人工业技术研究院 软性解映射方法及其装置与其通讯系统
MY176904A (en) * 2010-06-09 2020-08-26 Panasonic Ip Corp America Bandwidth extension method, bandwidth extension apparatus, program, integrated circuit, and audio decoding apparatus
KR102159194B1 (ko) 2010-07-19 2020-09-23 돌비 인터네셔널 에이비 고주파 복원 동안 오디오 신호들의 프로세싱
US12002476B2 (en) * 2010-07-19 2024-06-04 Dolby International Ab Processing of audio signals during high frequency reconstruction
JP6075743B2 (ja) * 2010-08-03 2017-02-08 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
US8762158B2 (en) * 2010-08-06 2014-06-24 Samsung Electronics Co., Ltd. Decoding method and decoding apparatus therefor
US8759661B2 (en) 2010-08-31 2014-06-24 Sonivox, L.P. System and method for audio synthesizer utilizing frequency aperture arrays
US8649388B2 (en) 2010-09-02 2014-02-11 Integrated Device Technology, Inc. Transmission of multiprotocol data in a distributed antenna system
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
US9059778B2 (en) * 2011-01-07 2015-06-16 Integrated Device Technology Inc. Frequency domain compression in a base transceiver system
US8989088B2 (en) * 2011-01-07 2015-03-24 Integrated Device Technology Inc. OFDM signal processing in a base transceiver system
WO2012095700A1 (en) * 2011-01-12 2012-07-19 Nokia Corporation An audio encoder/decoder apparatus
SG192796A1 (en) * 2011-02-18 2013-09-30 Ntt Docomo Inc Speech decoder, speech encoder, speech decoding method, speech encoding method, speech decoding program, and speech encoding program
US8653354B1 (en) * 2011-08-02 2014-02-18 Sonivoz, L.P. Audio synthesizing systems and methods
JP5942358B2 (ja) 2011-08-24 2016-06-29 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
DK2791937T3 (en) 2011-11-02 2016-09-12 ERICSSON TELEFON AB L M (publ) Generation of an højbåndsudvidelse of a broadband extended buzzer
EP2631906A1 (en) 2012-02-27 2013-08-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Phase coherence control for harmonic signals in perceptual audio codecs
CN106409299B (zh) * 2012-03-29 2019-11-05 华为技术有限公司 信号编码和解码的方法和设备
JP5997592B2 (ja) * 2012-04-27 2016-09-28 株式会社Ｎｔｔドコモ 音声復号装置
US9369149B1 (en) 2012-05-03 2016-06-14 Integrated Device Technology, Inc. Method and apparatus for efficient baseband unit processing in a communication system
US9313453B2 (en) * 2012-08-20 2016-04-12 Mitel Networks Corporation Localization algorithm for conferencing
CN104584123B (zh) * 2012-08-29 2018-02-13 日本电信电话株式会社 解码方法、以及解码装置
US9135920B2 (en) * 2012-11-26 2015-09-15 Harman International Industries, Incorporated System for perceived enhancement and restoration of compressed audio signals
CN103971693B (zh) 2013-01-29 2017-02-22 华为技术有限公司 高频带信号的预测方法、编/解码设备
WO2014159898A1 (en) * 2013-03-29 2014-10-02 Dolby Laboratories Licensing Corporation Methods and apparatuses for generating and using low-resolution preview tracks with high-quality encoded object and multichannel audio signals
US8804971B1 (en) 2013-04-30 2014-08-12 Dolby International Ab Hybrid encoding of higher frequency and downmixed low frequency content of multichannel audio
WO2014198726A1 (en) 2013-06-10 2014-12-18 Fraunhofer-Gesellschaft zur Förderung 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
JP6224233B2 (ja) 2013-06-10 2017-11-01 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン 分配量子化及び符号化を使用したオーディオ信号包絡の分割によるオーディオ信号包絡符号化、処理及び復号化の装置と方法
WO2014202784A1 (en) * 2013-06-21 2014-12-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for improved signal fade out for switched audio coding systems during error concealment
US9454970B2 (en) * 2013-07-03 2016-09-27 Bose Corporation Processing multichannel audio signals
EP2830056A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding or decoding an audio signal with intelligent gap filling in the spectral domain
MX354372B (es) * 2013-08-23 2018-02-28 Fraunhofer Ges Forschung Aparato y método para procesar una señal de audio empleando una señal de error de efecto aliasing.
US9203933B1 (en) 2013-08-28 2015-12-01 Integrated Device Technology, Inc. Method and apparatus for efficient data compression in a communication system
US9875746B2 (en) 2013-09-19 2018-01-23 Sony Corporation Encoding device and method, decoding device and method, and program
US9553954B1 (en) 2013-10-01 2017-01-24 Integrated Device Technology, Inc. Method and apparatus utilizing packet segment compression parameters for compression in a communication system
US9485688B1 (en) 2013-10-09 2016-11-01 Integrated Device Technology, Inc. Method and apparatus for controlling error and identifying bursts in a data compression system
US9398489B1 (en) 2013-10-09 2016-07-19 Integrated Device Technology Method and apparatus for context based data compression in a communication system
US8989257B1 (en) 2013-10-09 2015-03-24 Integrated Device Technology Inc. Method and apparatus for providing near-zero jitter real-time compression in a communication system
US9313300B2 (en) 2013-11-07 2016-04-12 Integrated Device Technology, Inc. Methods and apparatuses for a unified compression framework of baseband signals
US9858941B2 (en) * 2013-11-22 2018-01-02 Qualcomm Incorporated Selective phase compensation in high band coding of an audio signal
JP6593173B2 (ja) 2013-12-27 2019-10-23 ソニー株式会社 復号化装置および方法、並びにプログラム
US20150194157A1 (en) * 2014-01-06 2015-07-09 Nvidia Corporation System, method, and computer program product for artifact reduction in high-frequency regeneration audio signals
FR3017484A1 (fr) * 2014-02-07 2015-08-14 Orange Extension amelioree de bande de frequence dans un decodeur de signaux audiofrequences
US9542955B2 (en) * 2014-03-31 2017-01-10 Qualcomm Incorporated High-band signal coding using multiple sub-bands
PL3703051T3 (pl) * 2014-05-01 2021-11-22 Nippon Telegraph And Telephone Corporation Koder, dekoder, sposób kodowania, sposób dekodowania, program kodujący, program dekodujący i nośnik rejestrujący
EP4002359A1 (en) * 2014-06-10 2022-05-25 MQA Limited Digital encapsulation of audio signals
WO2016066217A1 (en) * 2014-10-31 2016-05-06 Telefonaktiebolaget L M Ericsson (Publ) Radio receiver, method of detecting an obtruding signal in the radio receiver, and computer program
EP3230976B1 (en) * 2014-12-11 2021-02-24 Uberchord UG (haftungsbeschränkt) Method and installation for processing a sequence of signals for polyphonic note recognition
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
KR20180056032A (ko) 2016-11-18 2018-05-28 삼성전자주식회사 신호 처리 프로세서 및 신호 처리 프로세서의 제어 방법
WO2018199989A1 (en) * 2017-04-28 2018-11-01 Hewlett-Packard Development Company, L.P. Loudness enhancement based on multiband range compression
KR102468799B1 (ko) * 2017-08-11 2022-11-18 삼성전자 주식회사 전자장치, 그 제어방법 및 그 컴퓨터프로그램제품
CN107545900B (zh) * 2017-08-16 2020-12-01 广州广晟数码技术有限公司 带宽扩展编码和解码中高频弦信号生成的方法和装置
KR102383195B1 (ko) 2017-10-27 2022-04-08 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 디코더에서의 노이즈 감쇠
WO2019091576A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
EP3483879A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analysis/synthesis windowing function for modulated lapped transformation
EP3483883A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio coding and decoding with selective postfiltering
EP3483886A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Selecting pitch lag
EP3483878A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder supporting a set of different loss concealment tools
EP3483882A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Controlling bandwidth in encoders and/or decoders
EP3483880A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Temporal noise shaping
WO2019091573A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters
EP3483884A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal filtering
US10714098B2 (en) 2017-12-21 2020-07-14 Dolby Laboratories Licensing Corporation Selective forward error correction for spatial audio codecs
TWI809289B (zh) 2018-01-26 2023-07-21 瑞典商都比國際公司 用於執行一音訊信號之高頻重建之方法、音訊處理單元及非暫時性電腦可讀媒體
MX2020010468A (es) 2018-04-05 2020-10-22 Ericsson Telefon Ab L M Codificacion predictiva truncable.
CN109036457B (zh) 2018-09-10 2021-10-08 广州酷狗计算机科技有限公司 恢复音频信号的方法和装置
CN115318605B (zh) * 2022-07-22 2023-09-08 东北大学 变频超声换能器自动匹配方法

Family Cites Families (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995115A (en) * 1967-08-25 1976-11-30 Bell Telephone Laboratories, Incorporated Speech privacy system
US3684838A (en) * 1968-06-26 1972-08-15 Kahn Res Lab Single channel audio signal transmission system
US4051331A (en) * 1976-03-29 1977-09-27 Brigham Young University Speech coding hearing aid system utilizing formant frequency transformation
US4232194A (en) * 1979-03-16 1980-11-04 Ocean Technology, Inc. Voice encryption system
NL7908213A (nl) * 1979-11-09 1981-06-01 Philips Nv Spraaksynthese inrichting met tenminste twee vervormingsketens.
US4419544A (en) * 1982-04-26 1983-12-06 Adelman Roger A Signal processing apparatus
JPS6011360B2 (ja) * 1981-12-15 1985-03-25 ケイディディ株式会社 音声符号化方式
US4667340A (en) * 1983-04-13 1987-05-19 Texas Instruments Incorporated Voice messaging system with pitch-congruent baseband coding
US4866777A (en) * 1984-11-09 1989-09-12 Alcatel Usa Corporation Apparatus for extracting features from a speech signal
US4790016A (en) * 1985-11-14 1988-12-06 Gte Laboratories Incorporated Adaptive method and apparatus for coding speech
WO1986003873A1 (en) * 1984-12-20 1986-07-03 Gte Laboratories Incorporated Method and apparatus for encoding speech
US4885790A (en) * 1985-03-18 1989-12-05 Massachusetts Institute Of Technology Processing of acoustic waveforms
US4935963A (en) * 1986-01-24 1990-06-19 Racal Data Communications Inc. Method and apparatus for processing speech signals
JPS62234435A (ja) * 1986-04-04 1987-10-14 Kokusai Denshin Denwa Co Ltd <Kdd> 符号化音声の復号化方式
EP0243562B1 (en) * 1986-04-30 1992-01-29 International Business Machines Corporation Improved voice coding process and device for implementing said process
US4776014A (en) * 1986-09-02 1988-10-04 General Electric Company Method for pitch-aligned high-frequency regeneration in RELP vocoders
US5054072A (en) * 1987-04-02 1991-10-01 Massachusetts Institute Of Technology Coding of acoustic waveforms
EP0287741B1 (en) * 1987-04-22 1993-03-31 International Business Machines Corporation Process for varying speech speed and device for implementing said process
US5127054A (en) * 1988-04-29 1992-06-30 Motorola, Inc. Speech quality improvement for voice coders and synthesizers
US4964166A (en) * 1988-05-26 1990-10-16 Pacific Communication Science, Inc. Adaptive transform coder having minimal bit allocation processing
US5109417A (en) * 1989-01-27 1992-04-28 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5054075A (en) * 1989-09-05 1991-10-01 Motorola, Inc. Subband decoding method and apparatus
CN1062963C (zh) * 1990-04-12 2001-03-07 多尔拜实验特许公司 用于产生高质量声音信号的解码器和编码器
WO1992012607A1 (en) * 1991-01-08 1992-07-23 Dolby Laboratories Licensing Corporation Encoder/decoder for multidimensional sound fields
US5327457A (en) * 1991-09-13 1994-07-05 Motorola, Inc. Operation indicative background noise in a digital receiver
JP2693893B2 (ja) * 1992-03-30 1997-12-24 松下電器産業株式会社 ステレオ音声符号化方法
US5455888A (en) * 1992-12-04 1995-10-03 Northern Telecom Limited Speech bandwidth extension method and apparatus
ATE211326T1 (de) * 1993-05-31 2002-01-15 Sony Corp Verfahren und vorrichtung zum kodieren oder dekodieren von signalen und aufzeichnungsmedium
US5623577A (en) * 1993-07-16 1997-04-22 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions
US5566154A (en) * 1993-10-08 1996-10-15 Sony Corporation Digital signal processing apparatus, digital signal processing method and data recording medium
JPH07160299A (ja) * 1993-12-06 1995-06-23 Hitachi Denshi Ltd 音声信号帯域圧縮伸張装置並びに音声信号の帯域圧縮伝送方式及び再生方式
US5619503A (en) * 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US6169813B1 (en) * 1994-03-16 2001-01-02 Hearing Innovations Incorporated Frequency transpositional hearing aid with single sideband modulation
US6173062B1 (en) * 1994-03-16 2001-01-09 Hearing Innovations Incorporated Frequency transpositional hearing aid with digital and single sideband modulation
AU3215295A (en) * 1994-08-12 1996-03-14 Neosoft, A.G. Nonlinear digital communications system
US5587998A (en) * 1995-03-03 1996-12-24 At&T Method and apparatus for reducing residual far-end echo in voice communication networks
EP0732687B2 (en) * 1995-03-13 2005-10-12 Matsushita Electric Industrial Co., Ltd. Apparatus for expanding speech bandwidth
DE19509149A1 (de) 1995-03-14 1996-09-19 Donald Dipl Ing Schulz Codierverfahren
JPH08328599A (ja) 1995-06-01 1996-12-13 Mitsubishi Electric Corp Ｍｐｅｇオーディオ復号器
JPH09101799A (ja) * 1995-10-04 1997-04-15 Sony Corp 信号符号化方法及び装置
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
JP3092653B2 (ja) * 1996-06-21 2000-09-25 日本電気株式会社 広帯域音声符号化装置及び音声復号装置並びに音声符号化復号装置
DE19628293C1 (de) * 1996-07-12 1997-12-11 Fraunhofer Ges Forschung Codieren und Decodieren von Audiosignalen unter Verwendung von Intensity-Stereo und Prädiktion
US5744739A (en) * 1996-09-13 1998-04-28 Crystal Semiconductor Wavetable synthesizer and operating method using a variable sampling rate approximation
US6098038A (en) * 1996-09-27 2000-08-01 Oregon Graduate Institute Of Science & Technology Method and system for adaptive speech enhancement using frequency specific signal-to-noise ratio estimates
GB2318029B (en) * 1996-10-01 2000-11-08 Nokia Mobile Phones Ltd Audio coding method and apparatus
JPH10124088A (ja) * 1996-10-24 1998-05-15 Sony Corp 音声帯域幅拡張装置及び方法
TW326070B (en) * 1996-12-19 1998-02-01 Holtek Microelectronics Inc The estimation method of the impulse gain for coding vocoder
US6167375A (en) * 1997-03-17 2000-12-26 Kabushiki Kaisha Toshiba Method for encoding and decoding a speech signal including background noise
US6336092B1 (en) * 1997-04-28 2002-01-01 Ivl Technologies Ltd Targeted vocal transformation
EP0878790A1 (en) * 1997-05-15 1998-11-18 Hewlett-Packard Company Voice coding system and method
JPH10341256A (ja) * 1997-06-10 1998-12-22 Logic Corp 音声から有音を抽出し、抽出有音から音声を再生する方法および装置
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
US6035048A (en) * 1997-06-18 2000-03-07 Lucent Technologies Inc. Method and apparatus for reducing noise in speech and audio signals
DE19730130C2 (de) * 1997-07-14 2002-02-28 Fraunhofer Ges Forschung Verfahren zum Codieren eines Audiosignals
US5899969A (en) 1997-10-17 1999-05-04 Dolby Laboratories Licensing Corporation Frame-based audio coding with gain-control words
US6159014A (en) * 1997-12-17 2000-12-12 Scientific Learning Corp. Method and apparatus for training of cognitive and memory systems in humans
US6019607A (en) * 1997-12-17 2000-02-01 Jenkins; William M. Method and apparatus for training of sensory and perceptual systems in LLI systems
JP3473828B2 (ja) 1998-06-26 2003-12-08 株式会社東芝 オーディオ用光ディスク及び情報再生方法及び再生装置
SE9903553D0 (sv) 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
JP3696091B2 (ja) * 1999-05-14 2005-09-14 松下電器産業株式会社 オーディオ信号の帯域を拡張するための方法及び装置
US6226616B1 (en) * 1999-06-21 2001-05-01 Digital Theater Systems, Inc. Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility
GB2351889B (en) * 1999-07-06 2003-12-17 Ericsson Telefon Ab L M Speech band expansion
US6978236B1 (en) * 1999-10-01 2005-12-20 Coding Technologies Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
AUPQ366799A0 (en) * 1999-10-26 1999-11-18 University Of Melbourne, The Emphasis of short-duration transient speech features
US6704711B2 (en) * 2000-01-28 2004-03-09 Telefonaktiebolaget Lm Ericsson (Publ) System and method for modifying speech signals
US7058572B1 (en) * 2000-01-28 2006-06-06 Nortel Networks Limited Reducing acoustic noise in wireless and landline based telephony
US7742927B2 (en) * 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
FR2807897B1 (fr) * 2000-04-18 2003-07-18 France Telecom Methode et dispositif d'enrichissement spectral
EP1158799A1 (en) 2000-05-18 2001-11-28 Deutsche Thomson-Brandt Gmbh Method and receiver for providing subtitle data in several languages on demand
EP1158800A1 (en) 2000-05-18 2001-11-28 Deutsche Thomson-Brandt Gmbh Method and receiver for providing audio translation data on demand
US7330814B2 (en) * 2000-05-22 2008-02-12 Texas Instruments Incorporated Wideband speech coding with modulated noise highband excitation system and method
SE0001926D0 (sv) * 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation/folding in the subband domain
JP2003535367A (ja) * 2000-05-26 2003-11-25 セロン フランス エスアーエス 狭帯域で符号化された信号を送信する送信機および受信端で信号の帯域を拡張する受信機
US20020016698A1 (en) * 2000-06-26 2002-02-07 Toshimichi Tokuda Device and method for audio frequency range expansion
SE0004163D0 (sv) * 2000-11-14 2000-11-14 Coding Technologies Sweden Ab Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering
SE0004187D0 (sv) 2000-11-15 2000-11-15 Coding Technologies Sweden Ab Enhancing the performance of coding systems that use high frequency reconstruction methods
US7236929B2 (en) * 2001-05-09 2007-06-26 Plantronics, Inc. Echo suppression and speech detection techniques for telephony applications
US6941263B2 (en) * 2001-06-29 2005-09-06 Microsoft Corporation Frequency domain postfiltering for quality enhancement of coded speech
US20050004803A1 (en) * 2001-11-23 2005-01-06 Jo Smeets Audio signal bandwidth extension
US20030187663A1 (en) * 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
US7502743B2 (en) * 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
EP1604354A4 (en) * 2003-03-15 2008-04-02 Mindspeed Tech Inc VOICE INDEX CONTROLS FOR CELP LANGUAGE CODING
EP1638083B1 (en) * 2004-09-17 2009-04-22 Harman Becker Automotive Systems GmbH Bandwidth extension of bandlimited audio signals
US8086451B2 (en) * 2005-04-20 2011-12-27 Qnx Software Systems Co. System for improving speech intelligibility through high frequency compression
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US8015368B2 (en) * 2007-04-20 2011-09-06 Siport, Inc. Processor extensions for accelerating spectral band replication

Also Published As

Publication number Publication date
US9412383B1 (en) 2016-08-09
EP2194528B1 (en) 2011-05-25
AU2003239126B2 (en) 2009-06-04
US20120128177A1 (en) 2012-05-24
US20160232911A1 (en) 2016-08-11
TW200305855A (en) 2003-11-01
SI2194528T1 (sl) 2012-03-30
ATE511180T1 (de) 2011-06-15
US20140161283A1 (en) 2014-06-12
US9767816B2 (en) 2017-09-19
EP2194528A1 (en) 2010-06-09
KR20040101227A (ko) 2004-12-02
AU2003239126A1 (en) 2003-10-13
US20170206909A1 (en) 2017-07-20
US9412388B1 (en) 2016-08-09
HK1114233A1 (en) 2008-10-24
US10269362B2 (en) 2019-04-23
MY140567A (en) 2009-12-31
SG10201710913TA (en) 2018-02-27
US20120328121A1 (en) 2012-12-27
JP2005521907A (ja) 2005-07-21
US20160379655A1 (en) 2016-12-29
US20200143817A1 (en) 2020-05-07
US8457956B2 (en) 2013-06-04
US20150279379A1 (en) 2015-10-01
SG10201710917UA (en) 2018-02-27
US9177564B2 (en) 2015-11-03
TWI319180B (en) 2010-01-01
WO2003083834A1 (en) 2003-10-09
US8126709B2 (en) 2012-02-28
US9324328B2 (en) 2016-04-26
CN1639770A (zh) 2005-07-13
JP4345890B2 (ja) 2009-10-14
SG10201710911VA (en) 2018-02-27
US9343071B2 (en) 2016-05-17
US20090192806A1 (en) 2009-07-30
SG10201710915PA (en) 2018-02-27
SG10201710912WA (en) 2018-02-27
US10529347B2 (en) 2020-01-07
US20160314796A1 (en) 2016-10-27
PL371410A1 (en) 2005-06-13
KR101005731B1 (ko) 2011-01-06
CN101093670A (zh) 2007-12-26
CN101093670B (zh) 2010-06-02
US20150243295A1 (en) 2015-08-27
US20180204581A1 (en) 2018-07-19
US20030187663A1 (en) 2003-10-02
US20180005639A1 (en) 2018-01-04
CA2475460C (en) 2012-02-28
EP1488414A1 (en) 2004-12-22
US9412389B1 (en) 2016-08-09
US20190172472A1 (en) 2019-06-06
US20160232904A1 (en) 2016-08-11
US20170084281A1 (en) 2017-03-23
CN100338649C (zh) 2007-09-19
MXPA04009408A (es) 2005-01-25
US20160232905A1 (en) 2016-08-11
US9548060B1 (en) 2017-01-17
US9947328B2 (en) 2018-04-17
SG153658A1 (en) 2009-07-29
US9704496B2 (en) 2017-07-11
US9653085B2 (en) 2017-05-16
SG173224A1 (en) 2011-08-29
US8285543B2 (en) 2012-10-09
PL208846B1 (pl) 2011-06-30
US20170148454A1 (en) 2017-05-25
SG2013057666A (en) 2015-12-30
CA2475460A1 (en) 2003-10-09
US9466306B1 (en) 2016-10-11

Similar Documents

Publication Publication Date Title
HK1078673A1 (en) Method and apparatus for processing an audio signal, generating a reconstructed audio signal and medium
CN1160702C (zh) 使用多通道音频信号的编码方法及装置
JP5253564B2 (ja) 合成されたスペクトル成分に適合するようにデコードされた信号の特性を使用するオーディオコーディングシステム
CN106024008B (zh) 使用高级频谱延拓降低量化噪声的压扩装置和方法
HK1093594A1 (en) Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation
PL337717A1 (en) Method of and apparatus for improving speech in a voice communication system
WO2004095419A3 (en) System and method for text-to-speech processing in a portable device
HK1082134A1 (en) Device and method for embedding a binary piece of user data in a carrier signal
Bosi et al. High-quality, low-rate audio transform coding for transmission and multimedia applications
ATE450034T1 (de) Wahrnehmungsbezogene normierung digitaler audiosignale
Flanagan Parametric representation of speech signals [dsp history]
EP1486853A3 (en) Methods and apparatuses for generating and restoring data
JP2004053891A5 (es)
Avendano et al. Enhancement of audio signals based on modulation spectrum processing
Annadana et al. A Novel Audio Post-Processing Toolkit for the Enhancement of Audio Signals Coded at Low Bit Rates
Atlas Modulation spectral filtering of speech.
Ferreira et al. A New Broadcast Quality Low Bit Rate Audio Coding Scheme Utilizing Novel Bandwidth Extension Tools
Jung Efficient carbamate synthesis

Legal Events

Date Code Title Description
PE Patent expired

Effective date: 20230317