CN100367348C - 低比特速率音频编码 - Google Patents

低比特速率音频编码 Download PDF

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Publication number
CN100367348C
CN100367348C CNB038168332A CN03816833A CN100367348C CN 100367348 C CN100367348 C CN 100367348C CN B038168332 A CNB038168332 A CN B038168332A CN 03816833 A CN03816833 A CN 03816833A CN 100367348 C CN100367348 C CN 100367348C
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China
Prior art keywords
sub
band signal
quantizer
audio coding
signal
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Chinese (zh)
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CN1669072A (zh
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马克·S.·温登
迈克尔·M.·杜鲁门
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Dolby Laboratories Licensing Corp
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Dolby Laboratories Licensing Corp
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    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
CNB038168332A 2002-07-16 2003-07-08 低比特速率音频编码 Expired - Fee Related CN100367348C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/198,638 US7043423B2 (en) 2002-07-16 2002-07-16 Low bit-rate audio coding systems and methods that use expanding quantizers with arithmetic coding
US10/198,638 2002-07-16

Publications (2)

Publication Number Publication Date
CN1669072A CN1669072A (zh) 2005-09-14
CN100367348C true CN100367348C (zh) 2008-02-06

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CNB038168332A Expired - Fee Related CN100367348C (zh) 2002-07-16 2003-07-08 低比特速率音频编码

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US (1) US7043423B2 (enExample)
EP (1) EP1537562B1 (enExample)
JP (1) JP4786903B2 (enExample)
KR (1) KR101019678B1 (enExample)
CN (1) CN100367348C (enExample)
AT (1) ATE360250T1 (enExample)
AU (1) AU2003253854B2 (enExample)
CA (1) CA2492647C (enExample)
DE (1) DE60313332T2 (enExample)
IL (1) IL165869A (enExample)
MX (1) MXPA05000653A (enExample)
MY (1) MY137149A (enExample)
PL (1) PL207862B1 (enExample)
TW (1) TWI315944B (enExample)
WO (1) WO2004008436A1 (enExample)

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KR101360456B1 (ko) 2008-07-11 2014-02-07 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 시간 워프 활성 신호의 제공 및 이를 이용한 오디오 신호의 인코딩
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US8515747B2 (en) * 2008-09-06 2013-08-20 Huawei Technologies Co., Ltd. Spectrum harmonic/noise sharpness control
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WO2010031049A1 (en) * 2008-09-15 2010-03-18 GH Innovation, Inc. Improving celp post-processing for music signals
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US20100106269A1 (en) * 2008-09-26 2010-04-29 Qualcomm Incorporated Method and apparatus for signal processing using transform-domain log-companding
EP3640941A1 (en) * 2008-10-08 2020-04-22 Fraunhofer Gesellschaft zur Förderung der Angewand Multi-resolution switched audio encoding/decoding scheme
EP2315358A1 (en) 2009-10-09 2011-04-27 Thomson Licensing Method and device for arithmetic encoding or arithmetic decoding
AU2010309894B2 (en) 2009-10-20 2014-03-13 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Multi-mode audio codec and CELP coding adapted therefore
US8280729B2 (en) * 2010-01-22 2012-10-02 Research In Motion Limited System and method for encoding and decoding pulse indices
US8989884B2 (en) * 2011-01-11 2015-03-24 Apple Inc. Automatic audio configuration based on an audio output device
KR20140117931A (ko) 2013-03-27 2014-10-08 삼성전자주식회사 오디오 디코딩 장치 및 방법
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
EP2992605B1 (en) * 2013-04-29 2017-06-07 Dolby Laboratories Licensing Corporation Frequency band compression with dynamic thresholds
US10230394B2 (en) * 2014-09-19 2019-03-12 Telefonaktiebolaget Lm Ericsson (Publ) Methods for compressing and decompressing IQ data, and associated devices
TWI771266B (zh) * 2015-03-13 2022-07-11 瑞典商杜比國際公司 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流
CA2998689C (en) * 2015-09-25 2021-10-26 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoder and method for encoding an audio signal with reduced background noise using linear predictive coding
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CN110992672B (zh) * 2019-09-25 2021-06-29 广州广日电气设备有限公司 红外遥控器学习及编码方法、红外遥控器系统及存储介质
DE102022200893A1 (de) * 2022-01-27 2023-07-27 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Codierung und Decodierung von Daten

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CN1117674A (zh) * 1993-09-28 1996-02-28 索尼公司 信号编码或解码设备以及记录媒介
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CN1117674A (zh) * 1993-09-28 1996-02-28 索尼公司 信号编码或解码设备以及记录媒介
DE10010849C1 (de) * 2000-03-06 2001-06-21 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Analysieren eines Analyse-Zeitsignals

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TW200406096A (en) 2004-04-16
PL373045A1 (en) 2005-08-08
MXPA05000653A (es) 2005-04-25
EP1537562A1 (en) 2005-06-08
JP4786903B2 (ja) 2011-10-05
IL165869A (en) 2010-06-30
ATE360250T1 (de) 2007-05-15
CA2492647A1 (en) 2004-01-22
US7043423B2 (en) 2006-05-09
CN1669072A (zh) 2005-09-14
PL207862B1 (pl) 2011-02-28
KR101019678B1 (ko) 2011-03-07
MY137149A (en) 2008-12-31
KR20050021467A (ko) 2005-03-07
CA2492647C (en) 2011-08-30
WO2004008436A1 (en) 2004-01-22
AU2003253854A1 (en) 2004-02-02
AU2003253854B2 (en) 2009-02-19
TWI315944B (en) 2009-10-11
DE60313332T2 (de) 2008-01-03
DE60313332D1 (de) 2007-05-31
HK1073916A1 (en) 2006-01-20
US20040015349A1 (en) 2004-01-22
EP1537562B1 (en) 2007-04-18
JP2005533280A (ja) 2005-11-04
IL165869A0 (en) 2006-01-15

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