SG10201710911VA - Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation - Google Patents

Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation

Info

Publication number
SG10201710911VA
SG10201710911VA SG10201710911VA SG10201710911VA SG10201710911VA SG 10201710911V A SG10201710911V A SG 10201710911VA SG 10201710911V A SG10201710911V A SG 10201710911VA SG 10201710911V A SG10201710911V A SG 10201710911VA SG 10201710911V A SG10201710911V A SG 10201710911VA
Authority
SG
Singapore
Prior art keywords
baseband
spectral components
signal
spectrum
frequency
Prior art date
Application number
SG10201710911VA
Inventor
Michael Mead Truman
Mark Stuart Vinton
Original Assignee
Dolby Laboratories 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 Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of SG10201710911VA publication Critical patent/SG10201710911VA/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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

Abstract

A method for generating a reconstructed signal comprises: receiving a signal containing data representing a baseband signal derived from an audio signal and an estimated spectral envelope; obtaining from the data a frequency-domain representation of the baseband signal, the frequency-domain representation comprising baseband spectral components; obtaining a regenerated signal comprising regenerated spectral components by copying into individual subbands the lowest-frequency baseband spectral components to a lower edge of a respective subband and continuing through the baseband spectral components in a circular manner to complete a translation for that respective subband; and obtaining a time-domain representation of the reconstructed signal corresponding to a combination of the baseband spectral components, the regenerated spectral components and the estimated spectral envelope.
SG10201710911VA 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation SG10201710911VA (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
SG10201710911VA true SG10201710911VA (en) 2018-02-27

Family

ID=28453693

Family Applications (8)

Application Number Title Priority Date Filing Date
SG10201710915PA SG10201710915PA (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG2013057666A SG2013057666A (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG10201710913TA SG10201710913TA (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG10201710917UA SG10201710917UA (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG200606723-5A SG153658A1 (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG10201710911VA SG10201710911VA (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG10201710912WA SG10201710912WA (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG2009012824A SG173224A1 (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation

Family Applications Before (5)

Application Number Title Priority Date Filing Date
SG10201710915PA SG10201710915PA (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG2013057666A SG2013057666A (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG10201710913TA SG10201710913TA (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG10201710917UA SG10201710917UA (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG200606723-5A SG153658A1 (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation

Family Applications After (2)

Application Number Title Priority Date Filing Date
SG10201710912WA SG10201710912WA (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
SG2009012824A SG173224A1 (en) 2002-03-28 2003-03-21 Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation

Country Status (16)

Country Link
US (19) US20030187663A1 (en)
EP (2) EP2194528B1 (en)
JP (1) JP4345890B2 (en)
KR (1) KR101005731B1 (en)
CN (2) CN101093670B (en)
AT (1) ATE511180T1 (en)
AU (1) AU2003239126B2 (en)
CA (1) CA2475460C (en)
HK (2) HK1078673A1 (en)
MX (1) MXPA04009408A (en)
MY (1) MY140567A (en)
PL (1) PL208846B1 (en)
SG (8) SG10201710915PA (en)
SI (1) SI2194528T1 (en)
TW (1) TWI319180B (en)
WO (1) WO2003083834A1 (en)

Families Citing this family (162)

* 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
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
US20030035553A1 (en) * 2001-08-10 2003-02-20 Frank Baumgarte Backwards-compatible perceptual coding of spatial cues
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 (en) * 2003-05-27 2004-12-01 Siemens Aktiengesellschaft Frequency expansion for Synthesiser
CN100508030C (en) 2003-06-30 2009-07-01 皇家飞利浦电子股份有限公司 Improving quality of decoded audio by adding noise
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 (en) * 2004-04-30 2005-11-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Information signal processing by modification in the spectral / modulation spectral range representation
US7512536B2 (en) * 2004-05-14 2009-03-31 Texas Instruments Incorporated Efficient filter bank computation for audio coding
JP4810422B2 (en) * 2004-05-14 2011-11-09 パナソニック株式会社 Encoding device, decoding device, and methods thereof
JP2008504566A (en) * 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 Acoustic transmission device, acoustic reception device, frequency range adaptation device, and acoustic signal transmission method
US7921007B2 (en) * 2004-08-17 2011-04-05 Koninklijke Philips Electronics N.V. Scalable audio coding
TWI393120B (en) 2004-08-25 2013-04-11 Dolby Lab Licensing Corp Method and syatem for audio signal encoding and decoding, audio signal encoder, audio signal decoder, computer-accessible medium carrying bitstream and computer program stored on computer-readable medium
TWI393121B (en) * 2004-08-25 2013-04-11 Dolby Lab Licensing Corp Method and apparatus for processing a set of n audio signals, and computer program associated therewith
WO2006026635A2 (en) 2004-08-30 2006-03-09 Qualcomm Incorporated Adaptive de-jitter buffer for voice over ip
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
EP1817767B1 (en) 2004-11-30 2015-11-11 Agere Systems Inc. Parametric coding of spatial audio with object-based side information
JP5017121B2 (en) * 2004-11-30 2012-09-05 アギア システムズ インコーポレーテッド Synchronization of spatial audio parametric coding with externally supplied 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 (en) * 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 Audio processing method and apparatus, program, and audio system
US8155965B2 (en) 2005-03-11 2012-04-10 Qualcomm Incorporated Time warping frames inside the vocoder by modifying the residual
US8355907B2 (en) * 2005-03-11 2013-01-15 Qualcomm Incorporated Method and apparatus for phase matching frames in vocoders
DE602006004959D1 (en) 2005-04-15 2009-03-12 Dolby Sweden Ab TIME CIRCULAR CURVE FORMATION OF DECORRELATED SIGNALS
US8311840B2 (en) * 2005-06-28 2012-11-13 Qnx Software Systems Limited Frequency extension of harmonic signals
JP4554451B2 (en) * 2005-06-29 2010-09-29 京セラ株式会社 COMMUNICATION DEVICE, COMMUNICATION SYSTEM, MODULATION METHOD, AND PROGRAM
DE102005032724B4 (en) 2005-07-13 2009-10-08 Siemens Ag Method and device for artificially expanding the bandwidth of speech signals
FR2891100B1 (en) * 2005-09-22 2008-10-10 Georges Samake AUDIO CODEC USING RAPID FOURIER TRANSFORMATION, PARTIAL COVERING AND ENERGY BASED TWO PLOT DECOMPOSITION
KR100717058B1 (en) * 2005-11-28 2007-05-14 삼성전자주식회사 Method for high frequency reconstruction and apparatus thereof
JP5034228B2 (en) * 2005-11-30 2012-09-26 株式会社Ｊｖｃケンウッド Interpolation device, sound reproduction device, interpolation method and interpolation program
US8126706B2 (en) * 2005-12-09 2012-02-28 Acoustic Technologies, Inc. Music detector for echo cancellation and noise reduction
EP2005424A2 (en) * 2006-03-20 2008-12-24 France Télécom Method for post-processing a signal in an audio decoder
US20080076374A1 (en) * 2006-09-25 2008-03-27 Avraham Grenader System and method for filtering of angle modulated signals
EP2071564A4 (en) 2006-09-29 2009-09-02 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 (en) * 2006-11-17 2014-08-26 삼성전자주식회사 Method of decoding a signal
JP4967618B2 (en) * 2006-11-24 2012-07-04 富士通株式会社 Decoding device and decoding method
JP5103880B2 (en) * 2006-11-24 2012-12-19 富士通株式会社 Decoding device and decoding method
CN101237317B (en) * 2006-11-27 2010-09-29 华为技术有限公司 Method and device for confirming transmission frequency spectrum
EP1947644B1 (en) * 2007-01-18 2019-06-19 Nuance Communications, Inc. Method and apparatus for providing an acoustic signal with extended band-width
US8639498B2 (en) * 2007-03-30 2014-01-28 Electronics And Telecommunications Research Institute Apparatus and method for coding and decoding multi object audio signal with multi channel
CN101939782B (en) * 2007-08-27 2012-12-05 爱立信电话股份有限公司 Adaptive transition frequency between noise fill and bandwidth extension
DK3401907T3 (en) * 2007-08-27 2020-03-02 Ericsson Telefon Ab L M Method and apparatus for perceptual spectral decoding of an audio signal comprising filling in spectral holes
WO2009059631A1 (en) * 2007-11-06 2009-05-14 Nokia Corporation Audio coding apparatus and method thereof
KR101238239B1 (en) * 2007-11-06 2013-03-04 노키아 코포레이션 An encoder
KR100970446B1 (en) * 2007-11-21 2010-07-16 한국전자통신연구원 Apparatus and method for deciding adaptive noise level for frequency extension
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 (en) * 2008-04-17 2009-10-21 삼성전자주식회사 Method for encoding/decoding audio signals using audio semantic information and apparatus thereof
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 (en) * 2008-10-29 2012-02-01 华为技术有限公司 Method and device for coding and decoding of high-frequency band signals
CN101770775B (en) * 2008-12-31 2011-06-22 华为技术有限公司 Signal processing method and device
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 (en) * 2009-03-17 2014-01-15 ヤマハ株式会社 Sound processing apparatus and program
RU2452044C1 (en) 2009-04-02 2012-05-27 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. Apparatus, method and media with programme code for generating representation of bandwidth-extended signal on basis of input signal representation using combination of harmonic bandwidth-extension and non-harmonic bandwidth-extension
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
AU2012204068B2 (en) * 2009-04-03 2013-12-19 Ntt Docomo, Inc. Speech encoding device, speech decoding device, speech encoding method, speech decoding method, speech encoding program, and speech decoding program
JP4921611B2 (en) * 2009-04-03 2012-04-25 株式会社エヌ・ティ・ティ・ドコモ Speech decoding apparatus, speech decoding method, and speech decoding program
JP4932917B2 (en) 2009-04-03 2012-05-16 株式会社エヌ・ティ・ティ・ドコモ Speech decoding apparatus, speech decoding method, and speech decoding program
TWI556227B (en) * 2009-05-27 2016-11-01 杜比國際公司 Systems and methods for generating a high frequency component of a signal from a low frequency component of the signal, a set-top box, a computer program product and storage medium thereof
US11657788B2 (en) 2009-05-27 2023-05-23 Dolby International Ab Efficient combined harmonic transposition
TWI401923B (en) * 2009-06-06 2013-07-11 Generalplus Technology Inc Methods and apparatuses for adaptive clock reconstruction and decoding in audio frequency
JP5754899B2 (en) 2009-10-07 2015-07-29 ソニー株式会社 Decoding apparatus and method, and program
BR122020007866B1 (en) * 2009-10-21 2021-06-01 Dolby International Ab SYSTEM CONFIGURED TO GENERATE A HIGH FREQUENCY COMPONENT OF AN AUDIO SIGNAL, METHOD FOR GENERATING A HIGH FREQUENCY COMPONENT OF AN AUDIO SIGNAL AND METHOD FOR DESIGNING A HARMONIC TRANSPOSITOR
US8699727B2 (en) * 2010-01-15 2014-04-15 Apple Inc. Visually-assisted mixing of audio using a spectral analyzer
ES2836756T3 (en) 2010-01-19 2021-06-28 Dolby Int Ab Improved sub-band block-based harmonic transposition
TWI557723B (en) 2010-02-18 2016-11-11 杜比實驗室特許公司 Decoding method and system
EP2362375A1 (en) 2010-02-26 2011-08-31 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for modifying an audio signal using harmonic locking
MX2012010415A (en) 2010-03-09 2012-10-03 Fraunhofer Ges Forschung Apparatus and method for processing an input audio signal using cascaded filterbanks.
CA2792449C (en) 2010-03-09 2017-12-05 Dolby International Ab Device and method for improved magnitude response and temporal alignment in a phase vocoder based bandwidth extension method for audio signals
EP2532002B1 (en) 2010-03-09 2014-01-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for processing an audio signal
JP5651980B2 (en) * 2010-03-31 2015-01-14 ソニー株式会社 Decoding device, decoding method, and program
JP5609737B2 (en) * 2010-04-13 2014-10-22 ソニー株式会社 Signal processing apparatus and method, encoding apparatus and method, decoding apparatus and method, and program
JP5652658B2 (en) * 2010-04-13 2015-01-14 ソニー株式会社 Signal processing apparatus and method, encoding apparatus and method, decoding apparatus and method, and program
JP5850216B2 (en) 2010-04-13 2016-02-03 ソニー株式会社 Signal processing apparatus and method, encoding apparatus and method, decoding apparatus and method, and program
JP6103324B2 (en) * 2010-04-13 2017-03-29 ソニー株式会社 Signal processing apparatus and method, and program
US9443534B2 (en) 2010-04-14 2016-09-13 Huawei Technologies Co., Ltd. Bandwidth extension system and approach
WO2011127832A1 (en) * 2010-04-14 2011-10-20 Huawei Technologies Co., Ltd. Time/frequency two dimension post-processing
EP2559032B1 (en) * 2010-04-16 2019-01-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for generating a wideband signal using guided bandwidth extension and blind bandwidth extension
TW201138354A (en) * 2010-04-27 2011-11-01 Ind Tech Res Inst Soft demapping method and apparatus thereof and communication system thereof
CN102237954A (en) * 2010-04-30 2011-11-09 财团法人工业技术研究院 Soft de-mapping method and device and communication system thereof
KR101773631B1 (en) * 2010-06-09 2017-08-31 파나소닉 인텔렉츄얼 프로퍼티 코포레이션 오브 아메리카 Band enhancement method, band enhancement apparatus, program, integrated circuit and audio decoder apparatus
CA3203400C (en) 2010-07-19 2023-09-26 Dolby International Ab Processing of audio signals during high frequency reconstruction
JP6075743B2 (en) * 2010-08-03 2017-02-08 ソニー株式会社 Signal processing apparatus and method, and program
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 (en) 2010-10-15 2015-04-30 ソニー株式会社 Encoding apparatus and method, decoding apparatus and method, and program
US8989088B2 (en) * 2011-01-07 2015-03-24 Integrated Device Technology Inc. OFDM signal processing in a base transceiver system
US9059778B2 (en) * 2011-01-07 2015-06-16 Integrated Device Technology Inc. Frequency domain compression in a base transceiver system
EP2663978A4 (en) * 2011-01-12 2016-04-06 Nokia Technologies Oy An audio encoder/decoder apparatus
HUE062540T2 (en) * 2011-02-18 2023-11-28 Ntt Docomo Inc Speech encoder and speech encoding method
US8653354B1 (en) * 2011-08-02 2014-02-18 Sonivoz, L.P. Audio synthesizing systems and methods
JP5942358B2 (en) 2011-08-24 2016-06-29 ソニー株式会社 Encoding apparatus and method, decoding apparatus and method, and program
EP2791937B1 (en) 2011-11-02 2016-06-08 Telefonaktiebolaget LM Ericsson (publ) Generation of a high band extension of a bandwidth extended audio signal
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
CN110706715B (en) * 2012-03-29 2022-05-24 华为技术有限公司 Method and apparatus for encoding and decoding signal
JP5997592B2 (en) 2012-04-27 2016-09-28 株式会社Ｎｔｔドコモ Speech decoder
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
KR101629661B1 (en) * 2012-08-29 2016-06-13 니폰 덴신 덴와 가부시끼가이샤 Decoding method, decoding apparatus, program, and recording medium therefor
US9135920B2 (en) * 2012-11-26 2015-09-15 Harman International Industries, Incorporated System for perceived enhancement and restoration of compressed audio signals
CN103971693B (en) * 2013-01-29 2017-02-22 华为技术有限公司 Forecasting method for high-frequency band signal, encoding device and decoding device
US9786286B2 (en) * 2013-03-29 2017-10-10 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
CN105431902B (en) 2013-06-10 2020-03-31 弗朗霍夫应用科学研究促进协会 Apparatus and method for audio signal envelope encoding, processing and decoding
EP3008725B1 (en) 2013-06-10 2017-05-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for audio signal envelope encoding, processing and decoding by splitting the audio signal envelope employing distribution quantization and coding
EP3011561B1 (en) * 2013-06-21 2017-05-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for improved signal fade out in different domains during error concealment
US9454970B2 (en) * 2013-07-03 2016-09-27 Bose Corporation Processing multichannel audio signals
EP2830065A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding an encoded audio signal using a cross-over filter around a transition frequency
ES2693559T3 (en) * 2013-08-23 2018-12-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and procedure for processing an audio signal by an aliasing error signal
US9203933B1 (en) 2013-08-28 2015-12-01 Integrated Device Technology, Inc. Method and apparatus for efficient data compression in a communication system
WO2015041070A1 (en) 2013-09-19 2015-03-26 ソニー株式会社 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
CN105765655A (en) * 2013-11-22 2016-07-13 高通股份有限公司 Selective phase compensation in high band coding
KR20230042410A (en) 2013-12-27 2023-03-28 소니그룹주식회사 Decoding device, method, and program
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 (en) * 2014-02-07 2015-08-14 Orange ENHANCED FREQUENCY BAND EXTENSION IN AUDIO FREQUENCY SIGNAL DECODER
US9542955B2 (en) * 2014-03-31 2017-01-10 Qualcomm Incorporated High-band signal coding using multiple sub-bands
ES2732859T3 (en) * 2014-05-01 2019-11-26 Nippon Telegraph & Telephone Encoder, decoder, encoding method, decoding method, encoding program, decoding program and recording medium
EP3998605A1 (en) * 2014-06-10 2022-05-18 MQA Limited Digital encapsulation of audio signals
CN107078750B (en) * 2014-10-31 2019-03-19 瑞典爱立信有限公司 The method and computer program of invasion signal in radio receiver, detection radio receiver
WO2016091994A1 (en) * 2014-12-11 2016-06-16 Ubercord Gmbh Method and installation for processing a sequence of signals for polyphonic note recognition
JP6763194B2 (en) * 2016-05-10 2020-09-30 株式会社Ｊｖｃケンウッド Encoding device, decoding device, communication system
KR20180056032A (en) 2016-11-18 2018-05-28 삼성전자주식회사 Signal processing processor and controlling method thereof
WO2018199989A1 (en) * 2017-04-28 2018-11-01 Hewlett-Packard Development Company, L.P. Loudness enhancement based on multiband range compression
KR102468799B1 (en) 2017-08-11 2022-11-18 삼성전자 주식회사 Electronic apparatus, method for controlling thereof and computer program product thereof
CN107545900B (en) * 2017-08-16 2020-12-01 广州广晟数码技术有限公司 Method and apparatus for bandwidth extension coding and generation of mid-high frequency sinusoidal signals in decoding
WO2019081089A1 (en) * 2017-10-27 2019-05-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Noise attenuation at a decoder
EP3483882A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Controlling bandwidth in encoders and/or decoders
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
EP3483884A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signal filtering
EP3483883A1 (en) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio coding and decoding with selective postfiltering
EP3483880A1 (en) * 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Temporal noise shaping
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
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
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
US10714098B2 (en) * 2017-12-21 2020-07-14 Dolby Laboratories Licensing Corporation Selective forward error correction for spatial audio codecs
TWI702594B (en) 2018-01-26 2020-08-21 瑞典商都比國際公司 Backward-compatible integration of high frequency reconstruction techniques for audio signals
KR20230058546A (en) * 2018-04-05 2023-05-03 텔레호낙티에볼라게트 엘엠 에릭슨(피유비엘) Support for generation of comfort noise
CN109036457B (en) * 2018-09-10 2021-10-08 广州酷狗计算机科技有限公司 Method and apparatus for restoring audio signal
CN115318605B (en) * 2022-07-22 2023-09-08 东北大学 Automatic matching method for variable-frequency ultrasonic transducer

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 (en) * 1979-11-09 1981-06-01 Philips Nv SPEECH SYNTHESIS DEVICE WITH AT LEAST TWO DISTORTION CHAINS.
US4419544A (en) * 1982-04-26 1983-12-06 Adelman Roger A Signal processing apparatus
JPS6011360B2 (en) * 1981-12-15 1985-03-25 ケイディディ株式会社 Audio encoding method
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 (en) * 1986-04-04 1987-10-14 Kokusai Denshin Denwa Co Ltd <Kdd> Voice coding system
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 (en) * 1990-04-12 2001-03-07 多尔拜实验特许公司 Adaptive-block-lenght, adaptive-transform, and adaptive-window transform coder, decoder, and encoder/decoder for high-quality audio
EP0520068B1 (en) * 1991-01-08 1996-05-15 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 (en) * 1992-03-30 1997-12-24 松下電器産業株式会社 Stereo speech coding method
US5455888A (en) * 1992-12-04 1995-10-03 Northern Telecom Limited Speech bandwidth extension method and apparatus
CA2140779C (en) * 1993-05-31 2005-09-20 Kyoya Tsutsui Method, apparatus and recording medium for coding of separated tone and noise characteristics spectral components of an acoustic signal
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
JP3200851B2 (en) * 1993-10-08 2001-08-20 ソニー株式会社 Digital signal processing device, digital signal processing method, and data recording medium
JPH07160299A (en) * 1993-12-06 1995-06-23 Hitachi Denshi Ltd Sound signal band compander and band compression transmission system and reproducing system for sound signal
US5619503A (en) * 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US6173062B1 (en) * 1994-03-16 2001-01-09 Hearing Innovations Incorporated Frequency transpositional hearing aid with digital and single sideband modulation
US6169813B1 (en) * 1994-03-16 2001-01-02 Hearing Innovations Incorporated Frequency transpositional hearing aid with 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 (en) 1995-03-14 1996-09-19 Donald Dipl Ing Schulz Audio signal coding for data compression factor
JPH08328599A (en) 1995-06-01 1996-12-13 Mitsubishi Electric Corp Mpeg audio decoder
JPH09101799A (en) * 1995-10-04 1997-04-15 Sony Corp Signal coding method and device therefor
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 (en) * 1996-06-21 2000-09-25 日本電気株式会社 Broadband speech encoding apparatus, speech decoding apparatus, and speech encoding / decoding apparatus
DE19628293C1 (en) * 1996-07-12 1997-12-11 Fraunhofer Ges Forschung Encoding and decoding audio signals using intensity stereo and prediction
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 (en) * 1996-10-24 1998-05-15 Sony Corp Device and method for expanding voice frequency band width
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
SE512719C2 (en) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd A method and apparatus for reducing data flow based on harmonic bandwidth expansion
JPH10341256A (en) * 1997-06-10 1998-12-22 Logic Corp Method and system for extracting voiced sound from speech signal and reproducing speech signal from extracted voiced sound
US6035048A (en) * 1997-06-18 2000-03-07 Lucent Technologies Inc. Method and apparatus for reducing noise in speech and audio signals
DE19730130C2 (en) * 1997-07-14 2002-02-28 Fraunhofer Ges Forschung Method for coding an audio signal
US5899969A (en) 1997-10-17 1999-05-04 Dolby Laboratories Licensing Corporation Frame-based audio coding with gain-control words
US6019607A (en) * 1997-12-17 2000-02-01 Jenkins; William M. Method and apparatus for training of sensory and perceptual systems in LLI systems
US6159014A (en) * 1997-12-17 2000-12-12 Scientific Learning Corp. Method and apparatus for training of cognitive and memory systems in humans
JP3473828B2 (en) 1998-06-26 2003-12-08 株式会社東芝 Audio optical disc, information reproducing method and reproducing apparatus
SE9903553D0 (en) * 1999-01-27 1999-10-01 Lars Liljeryd Enhancing conceptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
WO2000070769A1 (en) * 1999-05-14 2000-11-23 Matsushita Electric Industrial Co., Ltd. Method and apparatus for expanding band of audio signal
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
US7058572B1 (en) * 2000-01-28 2006-06-06 Nortel Networks Limited Reducing acoustic noise in wireless and landline based telephony
US6704711B2 (en) * 2000-01-28 2004-03-09 Telefonaktiebolaget Lm Ericsson (Publ) System and method for modifying speech signals
FR2807897B1 (en) * 2000-04-18 2003-07-18 France Telecom SPECTRAL ENRICHMENT METHOD AND DEVICE
US7742927B2 (en) * 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
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 (en) * 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation / folding in the subband domain
JP2003535367A (en) * 2000-05-26 2003-11-25 セロン フランス エスアーエス A transmitter for transmitting a signal encoded in a narrow band and a receiver for extending a signal band at a receiving end
US20020016698A1 (en) * 2000-06-26 2002-02-07 Toshimichi Tokuda Device and method for audio frequency range expansion
SE0004163D0 (en) * 2000-11-14 2000-11-14 Coding Technologies Sweden Ab Enhancing perceptual performance or high frequency reconstruction coding methods by adaptive filtering
SE0004187D0 (en) * 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
ATE331280T1 (en) * 2001-11-23 2006-07-15 Koninkl Philips Electronics Nv BANDWIDTH EXTENSION FOR AUDIO SIGNALS
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
US7155386B2 (en) * 2003-03-15 2006-12-26 Mindspeed Technologies, Inc. Adaptive correlation window for open-loop pitch
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
AU2003239126A1 (en) 2003-10-13
US9947328B2 (en) 2018-04-17
PL371410A1 (en) 2005-06-13
CN100338649C (en) 2007-09-19
US20120128177A1 (en) 2012-05-24
US8285543B2 (en) 2012-10-09
JP4345890B2 (en) 2009-10-14
US20120328121A1 (en) 2012-12-27
US9548060B1 (en) 2017-01-17
PL208846B1 (en) 2011-06-30
EP2194528A1 (en) 2010-06-09
CN101093670B (en) 2010-06-02
SG153658A1 (en) 2009-07-29
US20170084281A1 (en) 2017-03-23
CA2475460A1 (en) 2003-10-09
US20180204581A1 (en) 2018-07-19
US20140161283A1 (en) 2014-06-12
US20170206909A1 (en) 2017-07-20
US9412388B1 (en) 2016-08-09
MY140567A (en) 2009-12-31
US20200143817A1 (en) 2020-05-07
EP1488414A1 (en) 2004-12-22
US8457956B2 (en) 2013-06-04
US9412389B1 (en) 2016-08-09
CN101093670A (en) 2007-12-26
SG10201710917UA (en) 2018-02-27
US10529347B2 (en) 2020-01-07
US9704496B2 (en) 2017-07-11
US9653085B2 (en) 2017-05-16
US20160232905A1 (en) 2016-08-11
SG10201710915PA (en) 2018-02-27
US9466306B1 (en) 2016-10-11
US20160232904A1 (en) 2016-08-11
US20150279379A1 (en) 2015-10-01
SG173224A1 (en) 2011-08-29
US10269362B2 (en) 2019-04-23
US9412383B1 (en) 2016-08-09
ATE511180T1 (en) 2011-06-15
KR20040101227A (en) 2004-12-02
SI2194528T1 (en) 2012-03-30
US8126709B2 (en) 2012-02-28
TWI319180B (en) 2010-01-01
US20190172472A1 (en) 2019-06-06
US9324328B2 (en) 2016-04-26
US20030187663A1 (en) 2003-10-02
AU2003239126B2 (en) 2009-06-04
SG10201710913TA (en) 2018-02-27
MXPA04009408A (en) 2005-01-25
CA2475460C (en) 2012-02-28
KR101005731B1 (en) 2011-01-06
JP2005521907A (en) 2005-07-21
US20160379655A1 (en) 2016-12-29
CN1639770A (en) 2005-07-13
HK1114233A1 (en) 2008-10-24
US20160232911A1 (en) 2016-08-11
WO2003083834A1 (en) 2003-10-09
US20160314796A1 (en) 2016-10-27
HK1078673A1 (en) 2006-03-17
SG10201710912WA (en) 2018-02-27
US20180005639A1 (en) 2018-01-04
US20090192806A1 (en) 2009-07-30
US20170148454A1 (en) 2017-05-25
SG2013057666A (en) 2015-12-30
US20150243295A1 (en) 2015-08-27
EP2194528B1 (en) 2011-05-25
US9177564B2 (en) 2015-11-03
TW200305855A (en) 2003-11-01
US9767816B2 (en) 2017-09-19
US9343071B2 (en) 2016-05-17

Similar Documents

Publication Publication Date Title
SG10201710913TA (en) Reconstruction of the spectrum of an audiosignal with incomplete spectrum based on frequency translation
Painter et al. A review of algorithms for perceptual coding of digital audio signals
EP1377966B9 (en) Audio compression
HK1146145A1 (en) Audio decoding with filling of spectral holes
AU2003252727A1 (en) Audio decoding apparatus and audio decoding method based on spectral band repliction
EP1617418A3 (en) Spectral band replication and high frequency reconstruction audio coding methods and apparatuses using adaptive noise-floor addition and noise substitution limiting
EP1742202A4 (en) Encoding device, decoding device, and method thereof
CN1153369A (en) Coding method and apparatus for using multi channel audio signals
JP2005107255A5 (en)
WO2005046255A3 (en) Methods and apparatus for transmitting non-contiguous spread spectrum signals for communications and navigation
US9767812B2 (en) System and method for increasing transmission bandwidth efficiency (“EBT2”)
DE60330239D1 (en) PERCEPTION-RELATED NORMALIZATION OF DIGITAL AUDIO SIGNALS
TW200603074A (en) Audio coding device and method
Bosi et al. High-quality, low-rate audio transform coding for transmission and multimedia applications
Fielder et al. AC-2: A family of low complexity transform-based music coders
Kanade et al. A Literature survey on Psychoacoustic models and Wavelets in Audio compression
Motlicek et al. Audio Coding Based on Long Temporal Contexts
Baumgarte A psychoacoustic model for audio coding based on a cochlear filter bank
Ferreira et al. A New Broadcast Quality Low Bit Rate Audio Coding Scheme Utilizing Novel Bandwidth Extension Tools