AU2017262757B2 - Adaptive audio codec system, method, apparatus and medium - Google Patents

Adaptive audio codec system, method, apparatus and medium Download PDF

Info

Publication number
AU2017262757B2
AU2017262757B2 AU2017262757A AU2017262757A AU2017262757B2 AU 2017262757 B2 AU2017262757 B2 AU 2017262757B2 AU 2017262757 A AU2017262757 A AU 2017262757A AU 2017262757 A AU2017262757 A AU 2017262757A AU 2017262757 B2 AU2017262757 B2 AU 2017262757B2
Authority
AU
Australia
Prior art keywords
signal
filter
low
pass filter
quantized
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.)
Active
Application number
AU2017262757A
Other languages
English (en)
Other versions
AU2017262757A1 (en
Inventor
James Johnston
Stephen White
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.)
Immersion Services LLC
Original Assignee
Immersion Services LLC
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 US15/151,200 external-priority patent/US10770088B2/en
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 US15/151,220 external-priority patent/US10756755B2/en
Application filed by Immersion Services LLC filed Critical Immersion Services LLC
Publication of AU2017262757A1 publication Critical patent/AU2017262757A1/en
Application granted granted Critical
Publication of AU2017262757B2 publication Critical patent/AU2017262757B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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)
AU2017262757A 2016-05-10 2017-05-09 Adaptive audio codec system, method, apparatus and medium Active AU2017262757B2 (en)

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
US15/151,211 2016-05-10
US15/151,200 2016-05-10
US15/151,220 2016-05-10
US15/151,211 US20170330575A1 (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
US15/151,220 US10756755B2 (en) 2016-05-10 2016-05-10 Adaptive audio codec system, method and article
US15/151,109 2016-05-10
PCT/US2017/031735 WO2017196833A1 (en) 2016-05-10 2017-05-09 Adaptive audio codec system, method, apparatus and medium

Publications (2)

Publication Number Publication Date
AU2017262757A1 AU2017262757A1 (en) 2019-01-03
AU2017262757B2 true AU2017262757B2 (en) 2022-04-07

Family

ID=58710160

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2017262757A Active AU2017262757B2 (en) 2016-05-10 2017-05-09 Adaptive audio codec system, method, apparatus and medium

Country Status (7)

Country Link
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
KR102661462B1 (ko) 2019-08-26 2024-04-26 엘지전자 주식회사 팔레트 코딩 기반 영상 또는 비디오 코딩
US11935546B2 (en) * 2021-08-19 2024-03-19 Semiconductor Components Industries, Llc Transmission error robust ADPCM compressor with enhanced response

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070088558A1 (en) * 2005-04-01 2007-04-19 Vos Koen B Systems, methods, and apparatus for speech signal filtering
US20070118362A1 (en) * 2003-12-15 2007-05-24 Hiroaki Kondo Audio compression/decompression device
US20140229186A1 (en) * 2002-09-04 2014-08-14 Microsoft Corporation Entropy encoding and decoding using direct level and run-length/level context-adaptive arithmetic coding/decoding modes

Family Cites Families (11)

* 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
WO2000060576A1 (en) * 1999-04-05 2000-10-12 Hughes Electronics Corporation Spectral phase modeling of the prototype waveform components for 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
JP3748261B2 (ja) * 2003-06-17 2006-02-22 沖電気工業株式会社 Ａｄｐｃｍ方式復号器
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
ATE518224T1 (de) * 2008-01-04 2011-08-15 Dolby Int 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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140229186A1 (en) * 2002-09-04 2014-08-14 Microsoft Corporation Entropy encoding and decoding using direct level and run-length/level context-adaptive arithmetic coding/decoding modes
US20070118362A1 (en) * 2003-12-15 2007-05-24 Hiroaki Kondo Audio compression/decompression device
US20070088558A1 (en) * 2005-04-01 2007-04-19 Vos Koen B Systems, methods, and apparatus for speech signal filtering

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"7 kHz audio-coding within 64 kbit/s; G.722 (11/88)", ITU-T STANDARD, INTERNATIONAL TELECOMMUNICATION UNION, GENEVA ; CH, (1988-11-25), no. G.722 (11/88), pages 1 - 75 *
RAMAMOORTHY, V. et al., ‘Enhancement of ADPCM Speech Coding with Backward-Adaptive Algorithms for Postfiltering and Noise Feedback’, IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1988, Vol. 6, No. 2, pages 364-382. *

Also Published As

Publication number Publication date
JP7005036B2 (ja) 2022-01-21
CA3024167A1 (en) 2017-11-16
AU2017262757A1 (en) 2019-01-03
CN109416913B (zh) 2024-03-15
JP2019521398A (ja) 2019-07-25
EP3455854B1 (en) 2020-09-16
WO2017196833A1 (en) 2017-11-16
EP3455854A1 (en) 2019-03-20
CN109416913A (zh) 2019-03-01
KR20190011742A (ko) 2019-02-07

Similar Documents

Publication Publication Date Title
US10699725B2 (en) Adaptive audio encoder system, method and article
US10770088B2 (en) Adaptive audio decoder system, method and article
US10756755B2 (en) Adaptive audio codec system, method and article
US11386909B2 (en) Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
RU2678168C2 (ru) Кодер, декодер, система и способы кодирования и декодирования
WO2002080149A1 (en) Noise suppression
TWI306336B (en) Sacle factor based bit shifting in fine granularity scalability audio coding
US20170330575A1 (en) Adaptive audio codec system, method and article
AU2017262757B2 (en) Adaptive audio codec system, method, apparatus and medium
CN101377925A (zh) 提高g.711的感知质量的自适应调整方法
CN103370740A (zh) 分级编码器中的改善阶段的改善编码
EP3186808A1 (en) Audio parameter quantization
JP2019521398A5 (enExample)
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
CN101499281B (zh) 一种语音编码中的增益量化方法及装置
HK40030420B (en) Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
HK40030420A (en) Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
JP2018151498A (ja) 符号化装置、方法及びプログラム

Legal Events

Date Code Title Description
NB Applications allowed - extensions of time section 223(2)

Free format text: THE TIME IN WHICH TO REQUEST EXAMINATION HAS BEEN EXTENDED TO 20 MAR 2021

FGA Letters patent sealed or granted (standard patent)