DE60323412D1 - Bitraten-Reduktion in Audiokodierern unter Ausnutzung zeitlicher Maskierung - Google Patents

Bitraten-Reduktion in Audiokodierern unter Ausnutzung zeitlicher Maskierung

Info

Publication number
DE60323412D1
DE60323412D1 DE60323412T DE60323412T DE60323412D1 DE 60323412 D1 DE60323412 D1 DE 60323412D1 DE 60323412 T DE60323412 T DE 60323412T DE 60323412 T DE60323412 T DE 60323412T DE 60323412 D1 DE60323412 D1 DE 60323412D1
Authority
DE
Germany
Prior art keywords
temporal masking
masking
audio encoders
bitrate reduction
model
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60323412T
Other languages
English (en)
Inventor
Hossein Najaf-Zadeh
Hassan Lahdili
Louis Thibault
William Treurniet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CA MINISTER INDUSTRY
Canada Minister of Industry
Original Assignee
CA MINISTER INDUSTRY
Canada Minister of Industry
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 CA MINISTER INDUSTRY, Canada Minister of Industry filed Critical CA MINISTER INDUSTRY
Application granted granted Critical
Publication of DE60323412D1 publication Critical patent/DE60323412D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
DE60323412T 2002-08-27 2003-08-27 Bitraten-Reduktion in Audiokodierern unter Ausnutzung zeitlicher Maskierung Expired - Lifetime DE60323412D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40605502P 2002-08-27 2002-08-27

Publications (1)

Publication Number Publication Date
DE60323412D1 true DE60323412D1 (de) 2008-10-16

Family

ID=31888398

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60311619T Expired - Lifetime DE60311619T2 (de) 2002-08-27 2003-08-27 Datenreduktion in Audiokodierern unter Ausnutzung nichtharmonischer Effekte
DE60323412T Expired - Lifetime DE60323412D1 (de) 2002-08-27 2003-08-27 Bitraten-Reduktion in Audiokodierern unter Ausnutzung zeitlicher Maskierung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE60311619T Expired - Lifetime DE60311619T2 (de) 2002-08-27 2003-08-27 Datenreduktion in Audiokodierern unter Ausnutzung nichtharmonischer Effekte

Country Status (5)

Country Link
US (2) US7398204B2 (de)
EP (1) EP1398761B1 (de)
AT (1) ATE353464T1 (de)
CA (1) CA2438431C (de)
DE (2) DE60311619T2 (de)

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US7512536B2 (en) * 2004-05-14 2009-03-31 Texas Instruments Incorporated Efficient filter bank computation for audio coding
JP2006018023A (ja) * 2004-07-01 2006-01-19 Fujitsu Ltd オーディオ信号符号化装置、および符号化プログラム
KR100851970B1 (ko) * 2005-07-15 2008-08-12 삼성전자주식회사 오디오 신호의 중요주파수 성분 추출방법 및 장치와 이를이용한 저비트율 오디오 신호 부호화/복호화 방법 및 장치
KR100724736B1 (ko) * 2006-01-26 2007-06-04 삼성전자주식회사 스펙트럴 자기상관치를 이용한 피치 검출 방법 및 피치검출 장치
US7720086B2 (en) * 2007-03-19 2010-05-18 Microsoft Corporation Distributed overlay multi-channel media access control for wireless ad hoc networks
GB2466201B (en) * 2008-12-10 2012-07-11 Skype Ltd Regeneration of wideband speech
GB0822537D0 (en) 2008-12-10 2009-01-14 Skype Ltd Regeneration of wideband speech
US9947340B2 (en) 2008-12-10 2018-04-17 Skype Regeneration of wideband speech
US20100225473A1 (en) * 2009-03-05 2010-09-09 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Postural information system and method
KR20110001130A (ko) * 2009-06-29 2011-01-06 삼성전자주식회사 가중 선형 예측 변환을 이용한 오디오 신호 부호화 및 복호화 장치 및 그 방법
KR20110036175A (ko) * 2009-10-01 2011-04-07 삼성전자주식회사 멀티밴드를 이용한 잡음 제거 장치 및 방법
US20130297299A1 (en) * 2012-05-07 2013-11-07 Board Of Trustees Of Michigan State University Sparse Auditory Reproducing Kernel (SPARK) Features for Noise-Robust Speech and Speaker Recognition
US20140129215A1 (en) * 2012-11-02 2014-05-08 Samsung Electronics Co., Ltd. Electronic device and method for estimating quality of speech signal
US9225310B1 (en) * 2012-11-08 2015-12-29 iZotope, Inc. Audio limiter system and method
WO2015017223A1 (en) * 2013-07-29 2015-02-05 Dolby Laboratories Licensing Corporation System and method for reducing temporal artifacts for transient signals in a decorrelator circuit
US9564136B2 (en) * 2014-03-06 2017-02-07 Dts, Inc. Post-encoding bitrate reduction of multiple object audio
WO2017151482A1 (en) 2016-03-01 2017-09-08 Mayo Foundation For Medical Education And Research Audiology testing techniques
CN112105902B (zh) * 2018-04-11 2022-07-22 杜比实验室特许公司 基于机器学习的用于音频编码和解码的基于感知的损失函数

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5706392A (en) * 1995-06-01 1998-01-06 Rutgers, The State University Of New Jersey Perceptual speech coder and method
US5790759A (en) * 1995-09-19 1998-08-04 Lucent Technologies Inc. Perceptual noise masking measure based on synthesis filter frequency response
US6064954A (en) * 1997-04-03 2000-05-16 International Business Machines Corp. Digital audio signal coding
FR2768547B1 (fr) * 1997-09-18 1999-11-19 Matra Communication Procede de debruitage d'un signal de parole numerique
US6674876B1 (en) * 2000-09-14 2004-01-06 Digimarc Corporation Watermarking in the time-frequency domain
US6895374B1 (en) * 2000-09-29 2005-05-17 Sony Corporation Method for utilizing temporal masking in digital audio coding
US20020076049A1 (en) * 2000-12-19 2002-06-20 Boykin Patrick Oscar Method for distributing perceptually encrypted videos and decypting them
US7610205B2 (en) * 2002-02-12 2009-10-27 Dolby Laboratories Licensing Corporation High quality time-scaling and pitch-scaling of audio signals

Also Published As

Publication number Publication date
US20080221875A1 (en) 2008-09-11
EP1398761B1 (de) 2007-02-07
EP1398761A1 (de) 2004-03-17
DE60311619D1 (de) 2007-03-22
ATE353464T1 (de) 2007-02-15
US7398204B2 (en) 2008-07-08
CA2438431A1 (en) 2004-02-27
US20040044533A1 (en) 2004-03-04
DE60311619T2 (de) 2007-11-22
CA2438431C (en) 2012-02-21

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