TWI456568B - 編碼裝置及方法、及程式 - Google Patents
編碼裝置及方法、及程式 Download PDFInfo
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- 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
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- 238000000034 method Methods 0.000 title claims 5
- 230000001934 delay Effects 0.000 claims 1
Classifications
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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
- 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
- G10L21/04—Time compression or expansion
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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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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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
- G10L19/002—Dynamic bit allocation
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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
- G10L19/02—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
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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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
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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
- G10L19/02—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
- G10L19/0204—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 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)
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
Applications Claiming Priority (1)
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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)
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TW201246188A TW201246188A (en) | 2012-11-16 |
TWI456568B true TWI456568B (zh) | 2014-10-11 |
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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)
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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 |
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2011
- 2011-03-31 JP JP2011078874A patent/JP5704397B2/ja active Active
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2012
- 2012-03-23 CN CN2012800146163A patent/CN103443855A/zh active Pending
- 2012-03-23 BR BR112013024392A patent/BR112013024392A2/pt not_active Application Discontinuation
- 2012-03-23 WO PCT/JP2012/057530 patent/WO2012133195A1/ja active Application Filing
- 2012-03-23 KR KR1020137024507A patent/KR20140005287A/ko not_active Application Discontinuation
- 2012-03-23 TW TW101110250A patent/TWI456568B/zh not_active IP Right Cessation
- 2012-03-23 AU AU2012234115A patent/AU2012234115B2/en not_active Ceased
- 2012-03-23 CA CA2829328A patent/CA2829328A1/en not_active Abandoned
- 2012-03-23 EP EP12765534.8A patent/EP2693430B1/en active Active
- 2012-03-23 US US14/006,148 patent/US9437197B2/en not_active Expired - Fee Related
- 2012-03-23 RU RU2013143162/08A patent/RU2013143162A/ru unknown
- 2012-03-23 MX MX2013010879A patent/MX2013010879A/es active IP Right Grant
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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 |
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