KR20190011742A - 적응형 오디오 코덱 시스템, 방법, 장치 및 매체 - Google Patents

적응형 오디오 코덱 시스템, 방법, 장치 및 매체 Download PDF

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KR20190011742A
KR20190011742A KR1020187035261A KR20187035261A KR20190011742A KR 20190011742 A KR20190011742 A KR 20190011742A KR 1020187035261 A KR1020187035261 A KR 1020187035261A KR 20187035261 A KR20187035261 A KR 20187035261A KR 20190011742 A KR20190011742 A KR 20190011742A
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South Korea
Prior art keywords
signal
factor
step size
filter
quantized signal
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KR1020187035261A
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English (en)
Korean (ko)
Inventor
제임스 존스톤
스테판 와이트
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이멀젼 서비시즈 엘엘씨
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Priority claimed from US15/151,200 external-priority patent/US10770088B2/en
Priority claimed from US15/151,220 external-priority patent/US10756755B2/en
Priority claimed from US15/151,109 external-priority patent/US10699725B2/en
Priority claimed from US15/151,211 external-priority patent/US20170330575A1/en
Application filed by 이멀젼 서비시즈 엘엘씨 filed Critical 이멀젼 서비시즈 엘엘씨
Publication of KR20190011742A publication Critical patent/KR20190011742A/ko
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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
    • G10L19/04—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
    • 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
    • G10L19/035—Scalar quantisation
    • 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
    • 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
    • G10L2019/0001—Codebooks

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  • 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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
KR1020187035261A 2016-05-10 2017-05-09 적응형 오디오 코덱 시스템, 방법, 장치 및 매체 Ceased KR20190011742A (ko)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US15/151,200 US10770088B2 (en) 2016-05-10 2016-05-10 Adaptive audio decoder system, method and article
US15/151,220 2016-05-10
US15/151,220 US10756755B2 (en) 2016-05-10 2016-05-10 Adaptive audio codec system, method and article
US15/151,109 US10699725B2 (en) 2016-05-10 2016-05-10 Adaptive audio encoder system, method and article
US15/151,200 2016-05-10
US15/151,211 2016-05-10
US15/151,109 2016-05-10
US15/151,211 US20170330575A1 (en) 2016-05-10 2016-05-10 Adaptive audio codec system, method and article
PCT/US2017/031735 WO2017196833A1 (en) 2016-05-10 2017-05-09 Adaptive audio codec system, method, apparatus and medium

Publications (1)

Publication Number Publication Date
KR20190011742A true KR20190011742A (ko) 2019-02-07

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KR1020187035261A Ceased KR20190011742A (ko) 2016-05-10 2017-05-09 적응형 오디오 코덱 시스템, 방법, 장치 및 매체

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EP (1) EP3455854B1 (enExample)
JP (1) JP7005036B2 (enExample)
KR (1) KR20190011742A (enExample)
CN (1) CN109416913B (enExample)
AU (1) AU2017262757B2 (enExample)
CA (1) CA3024167A1 (enExample)
WO (1) WO2017196833A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116684633A (zh) * 2019-08-26 2023-09-01 Lg电子株式会社 图像编码方法、图像解码方法和比特流发送方法
US11935546B2 (en) * 2021-08-19 2024-03-19 Semiconductor Components Industries, Llc Transmission error robust ADPCM compressor with enhanced response

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3398457B2 (ja) * 1994-03-10 2003-04-21 沖電気工業株式会社 量子化スケールファクタ生成方法、逆量子化スケールファクタ生成方法、適応量子化回路、適応逆量子化回路、符号化装置及び復号化装置
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
US6975254B1 (en) * 1998-12-28 2005-12-13 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Methods and devices for coding or decoding an audio signal or bit stream
US6493664B1 (en) * 1999-04-05 2002-12-10 Hughes Electronics Corporation Spectral magnitude modeling and quantization in a frequency domain interpolative speech codec system
US6751587B2 (en) * 2002-01-04 2004-06-15 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
EP2282310B1 (en) * 2002-09-04 2012-01-25 Microsoft Corporation Entropy coding by adapting coding between level and run-length/level modes
JP3748261B2 (ja) * 2003-06-17 2006-02-22 沖電気工業株式会社 Ａｄｐｃｍ方式復号器
CN1894742A (zh) 2003-12-15 2007-01-10 松下电器产业株式会社 音频压缩解压装置
AU2006232363B2 (en) * 2005-04-01 2011-01-27 Qualcomm Incorporated Method and apparatus for anti-sparseness filtering of a bandwidth extended speech prediction excitation signal
US7342525B2 (en) * 2005-12-23 2008-03-11 Cirrus Logic, Inc. Sample rate conversion combined with DSM
DE102006022346B4 (de) * 2006-05-12 2008-02-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Informationssignalcodierung
ATE500588T1 (de) * 2008-01-04 2011-03-15 Dolby Sweden Ab Audiokodierer und -dekodierer
FR2938688A1 (fr) * 2008-11-18 2010-05-21 France Telecom Codage avec mise en forme du bruit dans un codeur hierarchique
US9343076B2 (en) * 2011-02-16 2016-05-17 Dolby Laboratories Licensing Corporation Methods and systems for generating filter coefficients and configuring filters

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Publication number Publication date
CA3024167A1 (en) 2017-11-16
AU2017262757A1 (en) 2019-01-03
CN109416913B (zh) 2024-03-15
JP2019521398A (ja) 2019-07-25
CN109416913A (zh) 2019-03-01
AU2017262757B2 (en) 2022-04-07
EP3455854A1 (en) 2019-03-20
WO2017196833A1 (en) 2017-11-16
EP3455854B1 (en) 2020-09-16
JP7005036B2 (ja) 2022-01-21

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