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

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

Info

Publication number
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
Authority
KR
South Korea
Prior art keywords
signal
factor
step size
filter
quantized signal
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.)
Ceased
Application number
KR1020187035261A
Other languages
English (en)
Korean (ko)
Inventor
제임스 존스톤
스테판 와이트
Original Assignee
이멀젼 서비시즈 엘엘씨
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
Priority claimed from US15/151,211 external-priority patent/US20170330575A1/en
Priority claimed from US15/151,109 external-priority patent/US10699725B2/en
Priority claimed from US15/151,200 external-priority patent/US10770088B2/en
Priority claimed from US15/151,220 external-priority patent/US10756755B2/en
Application filed by 이멀젼 서비시즈 엘엘씨 filed Critical 이멀젼 서비시즈 엘엘씨
Publication of KR20190011742A publication Critical patent/KR20190011742A/ko
Ceased legal-status Critical Current

Links

Images

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
    • G10L19/04—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

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)
  • 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 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
US15/151,220 2016-05-10
US15/151,109 US10699725B2 (en) 2016-05-10 2016-05-10 Adaptive audio encoder system, method and article
US15/151,211 2016-05-10
US15/151,200 US10770088B2 (en) 2016-05-10 2016-05-10 Adaptive audio decoder system, method and article
US15/151,220 US10756755B2 (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

Family

ID=58710160

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020187035261A Ceased KR20190011742A (ko) 2016-05-10 2017-05-09 적응형 오디오 코덱 시스템, 방법, 장치 및 매체

Country Status (7)

Country Link
EP (1) EP3455854B1 (https=)
JP (1) JP7005036B2 (https=)
KR (1) KR20190011742A (https=)
CN (1) CN109416913B (https=)
AU (1) AU2017262757B2 (https=)
CA (1) CA3024167A1 (https=)
WO (1) WO2017196833A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114424548B (zh) * 2019-08-26 2023-08-04 Lg电子株式会社 基于调色板编码的图像或视频编码
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
AU754877B2 (en) * 1998-12-28 2002-11-28 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Method 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
ATE543178T1 (de) * 2002-09-04 2012-02-15 Microsoft Corp Entropische kodierung mittels anpassung des kodierungsmodus zwischen niveau- und lauflängenniveau-modus
JP3748261B2 (ja) * 2003-06-17 2006-02-22 沖電気工業株式会社 Ａｄｐｃｍ方式復号器
WO2005057550A1 (ja) * 2003-12-15 2005-06-23 Matsushita Electric Industrial Co., Ltd. 音声圧縮伸張装置
BRPI0608270A2 (pt) * 2005-04-01 2009-10-06 Qualcomm Inc sistemas, métodos e equipamento para filtragem anti-dispersão
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
DE602008005250D1 (de) * 2008-01-04 2011-04-14 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
WO2012112357A1 (en) * 2011-02-16 2012-08-23 Dolby Laboratories Licensing Corporation Methods and systems for generating filter coefficients and configuring filters

Also Published As

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

Similar Documents

Publication Publication Date Title
US10699725B2 (en) Adaptive audio encoder system, method and article
CN101223573B (zh) 在自适应编码和解码中选择性地使用多个熵模型
JP6698897B2 (ja) スペクトルピーク位置の符号化及び復号化
AU2012218016B2 (en) Methods and systems for generating filter coefficients and configuring filters
US10770088B2 (en) Adaptive audio decoder system, method and article
RU2585990C2 (ru) Устройство и способ для выполнения кодирования методом хаффмана
RU2665259C1 (ru) Устройство и способ для обработки звукового сигнала с использованием гармонического постфильтра
US10756755B2 (en) Adaptive audio codec system, method and article
WO2002080149A1 (en) Noise suppression
WO2010085566A1 (en) Method and apparatus for compression or decompression of digital signals
US20170330575A1 (en) Adaptive audio codec system, method and article
CN103370740B (zh) 分级编码器中的改善阶段的改善编码
KR20190011742A (ko) 적응형 오디오 코덱 시스템, 방법, 장치 및 매체
JP6253674B2 (ja) 符号化信号を処理する装置および方法、並びに符号化信号を生成するエンコーダおよび方法
WO2016030568A1 (en) Audio parameter quantization
JP2019521398A5 (https=)
JPH0934493A (ja) 音響信号符号化装置、音響信号復号装置および音響信号処理装置

Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20181205

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 20200508

Comment text: Request for Examination of Application

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20210805

Patent event code: PE09021S01D

E601 Decision to refuse application
PE0601 Decision on rejection of patent

Patent event date: 20220310

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 20210805

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I