HK1073525A1 - Audio decoding apparatus and audio decoding method - Google Patents

Audio decoding apparatus and audio decoding method

Info

Publication number
HK1073525A1
HK1073525A1 HK05107079A HK05107079A HK1073525A1 HK 1073525 A1 HK1073525 A1 HK 1073525A1 HK 05107079 A HK05107079 A HK 05107079A HK 05107079 A HK05107079 A HK 05107079A HK 1073525 A1 HK1073525 A1 HK 1073525A1
Authority
HK
Hong Kong
Prior art keywords
audio decoding
few calculations
signal
decoding apparatus
subband
Prior art date
Application number
HK05107079A
Other languages
English (en)
Inventor
Mineo Tsushima
Naoya Tanaka
Takeshi Norimatsu
Kok Seng Chong
Kim Hann Kuah
Sua Hong Neo
Toshiyuki Nomura
Osamu Shimada
Yuichiro Takamizawa
Masahiro Serizawa
Original Assignee
Matsushita Electric Ind Co Ltd
Nec Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=31492144&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK1073525(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Matsushita Electric Ind Co Ltd, Nec Corp filed Critical Matsushita Electric Ind Co Ltd
Publication of HK1073525A1 publication Critical patent/HK1073525A1/xx

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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading 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
    • G10L19/02—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
HK05107079A 2002-08-01 2005-08-16 Audio decoding apparatus and audio decoding method HK1073525A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002225068 2002-08-01
PCT/JP2003/009646 WO2004013841A1 (en) 2002-08-01 2003-07-30 Audio decoding apparatus and audio decoding method based on spectral band repliction

Publications (1)

Publication Number Publication Date
HK1073525A1 true HK1073525A1 (en) 2005-10-07

Family

ID=31492144

Family Applications (1)

Application Number Title Priority Date Filing Date
HK05107079A HK1073525A1 (en) 2002-08-01 2005-08-16 Audio decoding apparatus and audio decoding method

Country Status (14)

Country Link
US (1) US7058571B2 (xx)
EP (1) EP1527442B1 (xx)
JP (1) JP3646938B1 (xx)
KR (1) KR100723753B1 (xx)
CN (1) CN1286087C (xx)
AT (1) ATE322735T1 (xx)
AU (1) AU2003252727A1 (xx)
BR (2) BR0305710A (xx)
CA (1) CA2464408C (xx)
DE (1) DE60304479T2 (xx)
ES (1) ES2261974T3 (xx)
HK (1) HK1073525A1 (xx)
TW (1) TWI303410B (xx)
WO (1) WO2004013841A1 (xx)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7742927B2 (en) * 2000-04-18 2010-06-22 France Telecom Spectral enhancing method and device
SE0202159D0 (sv) 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
WO2003046891A1 (en) 2001-11-29 2003-06-05 Coding Technologies Ab Methods for improving high frequency reconstruction
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
SE0202770D0 (sv) * 2002-09-18 2002-09-18 Coding Technologies Sweden Ab Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks
US20050004793A1 (en) * 2003-07-03 2005-01-06 Pasi Ojala Signal adaptation for higher band coding in a codec utilizing band split coding
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
WO2006049205A1 (ja) * 2004-11-05 2006-05-11 Matsushita Electric Industrial Co., Ltd. スケーラブル復号化装置およびスケーラブル符号化装置
US8082156B2 (en) * 2005-01-11 2011-12-20 Nec Corporation Audio encoding device, audio encoding method, and audio encoding program for encoding a wide-band audio signal
WO2006090852A1 (ja) * 2005-02-24 2006-08-31 Matsushita Electric Industrial Co., Ltd. データ再生装置
UA92742C2 (ru) * 2005-04-01 2010-12-10 Квелкомм Инкорпорейтед Способ и устройство для кодирования речевых сигналов с расщеплением полосы
US7917561B2 (en) * 2005-09-16 2011-03-29 Coding Technologies Ab Partially complex modulated filter bank
CN100568863C (zh) * 2005-09-30 2009-12-09 中国科学院上海微系统与信息技术研究所 基于多子带滤波器组的发射、接收装置及其方法
WO2007043648A1 (ja) 2005-10-14 2007-04-19 Matsushita Electric Industrial Co., Ltd. 変換符号化装置および変換符号化方法
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
AU2008215231B2 (en) 2007-02-14 2010-02-18 Lg Electronics Inc. Methods and apparatuses for encoding and decoding object-based audio signals
US8214200B2 (en) * 2007-03-14 2012-07-03 Xfrm, Inc. Fast MDCT (modified discrete cosine transform) approximation of a windowed sinusoid
KR101080421B1 (ko) * 2007-03-16 2011-11-04 삼성전자주식회사 정현파 오디오 코딩 방법 및 장치
KR101411900B1 (ko) * 2007-05-08 2014-06-26 삼성전자주식회사 오디오 신호의 부호화 및 복호화 방법 및 장치
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
KR101380170B1 (ko) * 2007-08-31 2014-04-02 삼성전자주식회사 미디어 신호 인코딩/디코딩 방법 및 장치
KR101425355B1 (ko) * 2007-09-05 2014-08-06 삼성전자주식회사 파라메트릭 오디오 부호화 및 복호화 장치와 그 방법
EP2212884B1 (en) * 2007-11-06 2013-01-02 Nokia Corporation An encoder
CN102568489B (zh) * 2007-11-06 2015-09-16 诺基亚公司 编码器
CN101896968A (zh) * 2007-11-06 2010-11-24 诺基亚公司 音频编码装置及其方法
WO2009059632A1 (en) * 2007-11-06 2009-05-14 Nokia Corporation An encoder
RU2443028C2 (ru) * 2008-07-11 2012-02-20 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Устройство и способ расчета параметров расширения полосы пропускания посредством управления фреймами наклона спектра
CN101751925B (zh) * 2008-12-10 2011-12-21 华为技术有限公司 一种语音解码方法及装置
EP2380172B1 (en) 2009-01-16 2013-07-24 Dolby International AB Cross product enhanced harmonic transposition
KR101599884B1 (ko) * 2009-08-18 2016-03-04 삼성전자주식회사 멀티 채널 오디오 디코딩 방법 및 장치
US8515768B2 (en) * 2009-08-31 2013-08-20 Apple Inc. Enhanced audio decoder
JP5754899B2 (ja) * 2009-10-07 2015-07-29 ソニー株式会社 復号装置および方法、並びにプログラム
WO2011114192A1 (en) * 2010-03-19 2011-09-22 Nokia Corporation Method and apparatus for audio coding
JP5651980B2 (ja) 2010-03-31 2015-01-14 ソニー株式会社 復号装置、復号方法、およびプログラム
JP6075743B2 (ja) * 2010-08-03 2017-02-08 ソニー株式会社 信号処理装置および方法、並びにプログラム
US8762158B2 (en) * 2010-08-06 2014-06-24 Samsung Electronics Co., Ltd. Decoding method and decoding apparatus therefor
US9514768B2 (en) 2010-08-06 2016-12-06 Samsung Electronics Co., Ltd. Audio reproducing method, audio reproducing apparatus therefor, and information storage medium
JP5552988B2 (ja) * 2010-09-27 2014-07-16 富士通株式会社 音声帯域拡張装置および音声帯域拡張方法
JP2011059714A (ja) * 2010-12-06 2011-03-24 Sony Corp 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
JP5743137B2 (ja) * 2011-01-14 2015-07-01 ソニー株式会社 信号処理装置および方法、並びにプログラム
JP5569476B2 (ja) * 2011-07-11 2014-08-13 ソニー株式会社 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
US9472199B2 (en) 2011-09-28 2016-10-18 Lg Electronics Inc. Voice signal encoding method, voice signal decoding method, and apparatus using same
CN103493130B (zh) * 2012-01-20 2016-05-18 弗劳恩霍夫应用研究促进协会 用以利用正弦代换进行音频编码及译码的装置和方法
KR101248125B1 (ko) 2012-10-15 2013-03-27 (주)알고코리아 주변소음 소거와 주파수 채널별 압축 기능을 가진 보청기
WO2014081736A2 (en) * 2012-11-20 2014-05-30 Dts, Inc. Reconstruction of a high frequency range in low-bitrate audio coding using predictive pattern analysis
CN107545900B (zh) * 2017-08-16 2020-12-01 广州广晟数码技术有限公司 带宽扩展编码和解码中高频弦信号生成的方法和装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691292A (en) * 1983-04-13 1987-09-01 Rca Corporation System for digital multiband filtering
DE3510573A1 (de) * 1985-03-23 1986-09-25 Philips Patentverwaltung Digitale analyse-synthese-filterbank mit maximaler taktreduktion
JP2906646B2 (ja) * 1990-11-09 1999-06-21 松下電器産業株式会社 音声帯域分割符号化装置
FR2680924B1 (fr) * 1991-09-03 1997-06-06 France Telecom Procede de filtrage adapte d'un signal transforme en sous-bandes, et dispositif de filtrage correspondant.
US5508949A (en) 1993-12-29 1996-04-16 Hewlett-Packard Company Fast subband filtering in digital signal coding
US5654952A (en) * 1994-10-28 1997-08-05 Sony Corporation Digital signal encoding method and apparatus and recording medium
JPH08162964A (ja) 1994-12-08 1996-06-21 Sony Corp 情報圧縮装置及び方法、情報伸張装置及び方法、並びに記録媒体
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
JP3437421B2 (ja) 1997-09-30 2003-08-18 シャープ株式会社 楽音符号化装置及び楽音符号化方法並びに楽音符号化プログラムを記録した記録媒体
EP0957579A1 (en) 1998-05-15 1999-11-17 Deutsche Thomson-Brandt Gmbh Method and apparatus for sampling-rate conversion of audio signals
US6539355B1 (en) * 1998-10-15 2003-03-25 Sony Corporation Signal band expanding method and apparatus and signal synthesis method and apparatus
US6718300B1 (en) 2000-06-02 2004-04-06 Agere Systems Inc. Method and apparatus for reducing aliasing in cascaded filter banks
US6889182B2 (en) 2001-01-12 2005-05-03 Telefonaktiebolaget L M Ericsson (Publ) Speech bandwidth extension
US6895375B2 (en) * 2001-10-04 2005-05-17 At&T Corp. System for bandwidth extension of Narrow-band speech

Also Published As

Publication number Publication date
ES2261974T3 (es) 2006-11-16
EP1527442B1 (en) 2006-04-05
TWI303410B (en) 2008-11-21
JP3646938B1 (ja) 2005-05-11
DE60304479T2 (de) 2006-12-14
AU2003252727A8 (en) 2004-02-23
JP2005520217A (ja) 2005-07-07
CA2464408C (en) 2012-02-21
US20050080621A1 (en) 2005-04-14
BRPI0305710B1 (pt) 2017-11-07
ATE322735T1 (de) 2006-04-15
US7058571B2 (en) 2006-06-06
WO2004013841A1 (en) 2004-02-12
EP1527442A1 (en) 2005-05-04
KR20050042020A (ko) 2005-05-04
CN1286087C (zh) 2006-11-22
BR0305710A (pt) 2004-09-28
CN1585972A (zh) 2005-02-23
CA2464408A1 (en) 2004-02-12
KR100723753B1 (ko) 2007-05-30
DE60304479D1 (de) 2006-05-18
AU2003252727A1 (en) 2004-02-23
TW200405267A (en) 2004-04-01

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Effective date: 20230729