TWI456568B - 編碼裝置及方法、及程式 - Google Patents

編碼裝置及方法、及程式 Download PDF

Info

Publication number
TWI456568B
TWI456568B TW101110250A TW101110250A TWI456568B TW I456568 B TWI456568 B TW I456568B TW 101110250 A TW101110250 A TW 101110250A TW 101110250 A TW101110250 A TW 101110250A TW I456568 B TWI456568 B TW I456568B
Authority
TW
Taiwan
Prior art keywords
code string
frequency
high frequency
encoding
low
Prior art date
Application number
TW101110250A
Other languages
English (en)
Other versions
TW201246188A (en
Inventor
Hiroyuki Honma
Toru Chinen
Yuki Yamamoto
Mitsuyuki Hatanaka
Original Assignee
Sony 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
Application filed by Sony Corp filed Critical Sony Corp
Publication of TW201246188A publication Critical patent/TW201246188A/zh
Application granted granted Critical
Publication of TWI456568B publication Critical patent/TWI456568B/zh

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00Speech 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
    • G10L21/04Time compression or expansion
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/008Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/002Dynamic bit allocation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/16Vocoder architecture
    • G10L19/18Vocoders using multiple modes
    • G10L19/24Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/0204Speech 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 using subband decomposition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Claims (7)

  1. 一種編碼裝置,其包含:第一高頻編碼部,其基於輸入信號之低頻成分與高頻成分,算出用以獲得上述高頻成分之高頻碼串之編碼量即高頻編碼量;低頻編碼部,其編碼上述輸入信號之上述低頻成分而生成低頻碼串;低頻解碼部,其解碼上述低頻碼串;第二高頻編碼部,其以使上述高頻碼串之編碼量成為上述高頻編碼量以下之編碼量之方式,基於由上述低頻碼串之解碼而獲得之解碼低頻成分及上述高頻成分,生成上述高頻碼串;及多工部,其多工處理上述低頻碼串與上述高頻碼串而生成輸出碼串。
  2. 如請求項1之編碼裝置,其中上述第一高頻編碼部基於構成上述低頻成分之複數個次頻帶之低頻次頻帶信號、及構成上述高頻成分之複數個次頻帶之高頻次頻帶信號,而算出上述高頻編碼量;且上述第二高頻編碼部基於構成上述解碼低頻成分之複數個次頻帶之解碼低頻次頻帶信號、及上述高頻次頻帶信號,而生成上述高頻碼串。
  3. 如請求項1之編碼裝置,其中進而包含:延遲部,其使輸入至上述第二高頻編碼部之上述高頻編碼量、上述解碼低頻成分、及上述高頻成分延遲。
  4. 如請求項1之編碼裝置,其中進而包含:編碼量調整部,其當由上述第二高頻編碼部獲得之上述高頻碼串之編碼量少於上述高頻編碼量之情形時,將上述高頻碼串之編碼量與上述高頻編碼量之差分作為下次以後之處理中可使用之剩餘編碼量,而控制上述剩餘編碼量之儲存。
  5. 如請求項4之編碼裝置,其中上述剩餘編碼量係用於調整上述高頻碼串或上述低頻碼串之至少任一者之編碼量。
  6. 一種編碼方法,其係編碼裝置之編碼方法,該編碼裝置包含:第一高頻編碼部,其基於輸入信號之低頻成分與高頻成分,算出用以獲得上述高頻成分之高頻碼串之編碼量即高頻編碼量;低頻編碼部,其編碼上述輸入信號之上述低頻成分,而生成低頻碼串;低頻解碼部,其解碼上述低頻碼串;第二高頻編碼部,其以使上述高頻碼串之編碼量成為上述高頻編碼量以下之編碼量之方式,基於由上述低頻碼串之解碼而獲得之解碼低頻成分及上述高頻成分,生成上述高頻碼串;及多工部,其多工處理上述低頻碼串與上述高頻碼串而生成輸出碼串;且該編碼方法包含以下步驟:由上述第一高頻編碼部算出上述高頻編碼量; 由上述低頻編碼部編碼上述低頻成分;由上述低頻解碼部解碼上述高低頻碼串;由上述第二高頻編碼部生成上述高頻碼串;及由上述多工部生成上述輸出碼串。
  7. 一種程式,其係使電腦執行包含以下步驟之處理者:基於輸入信號之低頻成分與高頻成分,算出用以獲得上述高頻成分之高頻碼串之編碼量即高頻編碼量;編碼上述輸入信號之上述低頻成分而生成低頻碼串;解碼上述低頻碼串;以使上述高頻碼串之編碼量成為上述高頻編碼量以下之編碼量之方式,基於由上述低頻碼串之解碼而獲得之解碼低頻成分及上述高頻成分,生成上述高頻碼串;及多工處理上述低頻碼串與上述高頻碼串而生成輸出碼串。
TW101110250A 2011-03-31 2012-03-23 編碼裝置及方法、及程式 TWI456568B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011078874A JP5704397B2 (ja) 2011-03-31 2011-03-31 符号化装置および方法、並びにプログラム

Publications (2)

Publication Number Publication Date
TW201246188A TW201246188A (en) 2012-11-16
TWI456568B true TWI456568B (zh) 2014-10-11

Family

ID=46930918

Family Applications (1)

Application Number Title Priority Date Filing Date
TW101110250A TWI456568B (zh) 2011-03-31 2012-03-23 編碼裝置及方法、及程式

Country Status (12)

Country Link
US (1) US9437197B2 (zh)
EP (1) EP2693430B1 (zh)
JP (1) JP5704397B2 (zh)
KR (1) KR20140005287A (zh)
CN (1) CN103443855A (zh)
AU (1) AU2012234115B2 (zh)
BR (1) BR112013024392A2 (zh)
CA (1) CA2829328A1 (zh)
MX (1) MX2013010879A (zh)
RU (1) RU2013143162A (zh)
TW (1) TWI456568B (zh)
WO (1) WO2012133195A1 (zh)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP5609737B2 (ja) 2010-04-13 2014-10-22 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
JP5652658B2 (ja) 2010-04-13 2015-01-14 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
JP5850216B2 (ja) 2010-04-13 2016-02-03 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
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
JP5707842B2 (ja) 2010-10-15 2015-04-30 ソニー株式会社 符号化装置および方法、復号装置および方法、並びにプログラム
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
JP5975243B2 (ja) 2011-08-24 2016-08-23 ソニー株式会社 符号化装置および方法、並びにプログラム
JP6037156B2 (ja) 2011-08-24 2016-11-30 ソニー株式会社 符号化装置および方法、並びにプログラム
JP5942358B2 (ja) 2011-08-24 2016-06-29 ソニー株式会社 符号化装置および方法、復号装置および方法、並びにプログラム
KR20150032649A (ko) 2012-07-02 2015-03-27 소니 주식회사 복호 장치 및 방법, 부호화 장치 및 방법, 및 프로그램
KR101782916B1 (ko) * 2013-09-17 2017-09-28 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법 및 장치
JP6531649B2 (ja) 2013-09-19 2019-06-19 ソニー株式会社 符号化装置および方法、復号化装置および方法、並びにプログラム
WO2015060654A1 (ko) 2013-10-22 2015-04-30 한국전자통신연구원 오디오 신호의 필터 생성 방법 및 이를 위한 파라메터화 장치
WO2015099429A1 (ko) 2013-12-23 2015-07-02 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법, 이를 위한 파라메터화 장치 및 오디오 신호 처리 장치
JP6593173B2 (ja) 2013-12-27 2019-10-23 ソニー株式会社 復号化装置および方法、並びにプログラム
CN108600935B (zh) 2014-03-19 2020-11-03 韦勒斯标准与技术协会公司 音频信号处理方法和设备
KR101856127B1 (ko) 2014-04-02 2018-05-09 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법 및 장치
US11568884B2 (en) * 2021-05-24 2023-01-31 Invictumtech, Inc. Analysis filter bank and computing procedure thereof, audio frequency shifting system, and audio frequency shifting procedure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030088423A1 (en) * 2001-11-02 2003-05-08 Kosuke Nishio Encoding device and decoding device
JP2007171821A (ja) * 2005-12-26 2007-07-05 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
US20080052066A1 (en) * 2004-11-05 2008-02-28 Matsushita Electric Industrial Co., Ltd. Encoder, Decoder, Encoding Method, and Decoding Method
US20090171673A1 (en) * 2006-05-10 2009-07-02 Panasonic Corporation Encoding apparatus and encoding method
TW200931397A (en) * 2007-11-06 2009-07-16 Nokia Corp An encoder
TWI320923B (en) * 2005-04-01 2010-02-21 Qualcomm Inc Methods and apparatus for highband time warping

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3498375B2 (ja) * 1994-07-20 2004-02-16 ソニー株式会社 ディジタル・オーディオ信号記録装置
EP1423847B1 (en) * 2001-11-29 2005-02-02 Coding Technologies AB Reconstruction of high frequency components
KR20070115637A (ko) 2006-06-03 2007-12-06 삼성전자주식회사 대역폭 확장 부호화 및 복호화 방법 및 장치
US8010352B2 (en) 2006-06-21 2011-08-30 Samsung Electronics Co., Ltd. Method and apparatus for adaptively encoding and decoding high frequency band
JP4918841B2 (ja) * 2006-10-23 2012-04-18 富士通株式会社 符号化システム
JP5141180B2 (ja) 2006-11-09 2013-02-13 ソニー株式会社 周波数帯域拡大装置及び周波数帯域拡大方法、再生装置及び再生方法、並びに、プログラム及び記録媒体
JP5339919B2 (ja) 2006-12-15 2013-11-13 パナソニック株式会社 符号化装置、復号装置およびこれらの方法
JP4984983B2 (ja) * 2007-03-09 2012-07-25 富士通株式会社 符号化装置および符号化方法
CA2704807A1 (en) 2007-11-06 2009-05-14 Nokia Corporation Audio coding apparatus and method thereof
KR101413968B1 (ko) * 2008-01-29 2014-07-01 삼성전자주식회사 오디오 신호의 부호화, 복호화 방법 및 장치
CN101853663B (zh) * 2009-03-30 2012-05-23 华为技术有限公司 比特分配方法、编码装置及解码装置
ES2400661T3 (es) * 2009-06-29 2013-04-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificación y decodificación de extensión de ancho de banda
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
JP5850216B2 (ja) 2010-04-13 2016-02-03 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
JP5652658B2 (ja) 2010-04-13 2015-01-14 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
JP5975243B2 (ja) 2011-08-24 2016-08-23 ソニー株式会社 符号化装置および方法、並びにプログラム
JP5942358B2 (ja) 2011-08-24 2016-06-29 ソニー株式会社 符号化装置および方法、復号装置および方法、並びにプログラム
JP6037156B2 (ja) 2011-08-24 2016-11-30 ソニー株式会社 符号化装置および方法、並びにプログラム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030088423A1 (en) * 2001-11-02 2003-05-08 Kosuke Nishio Encoding device and decoding device
US20080052066A1 (en) * 2004-11-05 2008-02-28 Matsushita Electric Industrial Co., Ltd. Encoder, Decoder, Encoding Method, and Decoding Method
TWI320923B (en) * 2005-04-01 2010-02-21 Qualcomm Inc Methods and apparatus for highband time warping
JP2007171821A (ja) * 2005-12-26 2007-07-05 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
US20090171673A1 (en) * 2006-05-10 2009-07-02 Panasonic Corporation Encoding apparatus and encoding method
TW200931397A (en) * 2007-11-06 2009-07-16 Nokia Corp An encoder

Also Published As

Publication number Publication date
JP5704397B2 (ja) 2015-04-22
US9437197B2 (en) 2016-09-06
CA2829328A1 (en) 2012-10-04
BR112013024392A2 (pt) 2016-12-13
KR20140005287A (ko) 2014-01-14
JP2012215599A (ja) 2012-11-08
EP2693430A1 (en) 2014-02-05
MX2013010879A (es) 2013-10-17
TW201246188A (en) 2012-11-16
WO2012133195A1 (ja) 2012-10-04
US20140006037A1 (en) 2014-01-02
AU2012234115A1 (en) 2013-09-19
US20140172433A2 (en) 2014-06-19
CN103443855A (zh) 2013-12-11
EP2693430B1 (en) 2019-05-08
RU2013143162A (ru) 2015-03-27
AU2012234115B2 (en) 2016-09-01
EP2693430A4 (en) 2015-03-18

Similar Documents

Publication Publication Date Title
TWI456568B (zh) 編碼裝置及方法、及程式
JP2013044923A5 (ja) 符号化装置および方法、復号装置および方法、並びにプログラム
JP2012168494A5 (zh)
JP2015194666A5 (zh)
JP2013044921A5 (ja) 符号化装置および方法、復号装置および方法、並びにプログラム
AR125775A2 (es) Procesador de datos de audio para decodificadores de audio y/o renderizadores y método para procesar datos de audio
JP2011237751A5 (ja) 符号化装置および方法、復号装置および方法、並びにプログラム
MY180759A (en) Apparatus and method for decoding or encoding an audio signat using energy information values for a reconstruction band
MY164393A (en) Mdct-based complex prediction stereo coding
FI3239979T3 (fi) Yleisten audiosignaalien koodaus alhaisilla bittinopeuksilla ja alhaisella viiveellä
RU2014105812A (ru) Устройство и способ кодирования, устройство и способ декодирования и программа
JP2012145895A5 (zh)
MY168695A (en) Signal processing device and method, encoding device and method, decoding device and method, and programs therefor
MX2014013836A (es) Descomposicion de datos residuales durante la codificacion, decodificacion y reconstruccion de señal en jerarquia escalonada.
EP2698789A3 (en) Audio decoder and decoding method using efficient downmixing
JP2015520966A5 (zh)
MX2015009534A (es) Metodo y aparato para reproduccion de audio normalizada de medios con y sin metadatos de sonoridad incorporados en dispositivos de medios nuevos.
MX2017016228A (es) Aparato codificador, metodo de codificacion, aparato decodificador, metodo de decodificacion, y programa.
MX356721B (es) Extension de ancho de banda adaptable y aparato correspondiente.
RU2012111784A (ru) Устройство и способ обработки сигнала и программа
MY185176A (en) Audio encoder, audio decoder, method for providing an encoded audio information, method for providing a decoded audio information, computer program and encoded representation using a signal-adaptive bandwidth extension
RU2016137197A (ru) Устройство кодирования и способ кодирования, устройство декодирования и способ декодирования, и программа
MX356371B (es) Dispositivo de codificacion de señal acustica, dispositivo de decodificacion de señal acustica, metodo para codificar una señal acustica y metodo para decodificar una señal acustica.
AR115901A2 (es) Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia
RU2012142675A (ru) Устройство обработки сигналов и способ обработки сигналов, кодер и способ кодирования, декодер и способ декодирования, и программа

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees