BR112017000629A2 - aparelho de codificação de sinal de áudio, aparelho de decodificação de sinal de áudio, método de codificação de sinal de áudio, e método de decodificação de sinal de áudio - Google Patents
aparelho de codificação de sinal de áudio, aparelho de decodificação de sinal de áudio, método de codificação de sinal de áudio, e método de decodificação de sinal de áudioInfo
- Publication number
- BR112017000629A2 BR112017000629A2 BR112017000629A BR112017000629A BR112017000629A2 BR 112017000629 A2 BR112017000629 A2 BR 112017000629A2 BR 112017000629 A BR112017000629 A BR 112017000629A BR 112017000629 A BR112017000629 A BR 112017000629A BR 112017000629 A2 BR112017000629 A2 BR 112017000629A2
- Authority
- BR
- Brazil
- Prior art keywords
- audio signal
- subband
- quantizer
- signal coding
- signal decoding
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 5
- 238000013139 quantization Methods 0.000 abstract 2
- 238000001228 spectrum Methods 0.000 abstract 2
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
- 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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- 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
-
- 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
- G10L19/0208—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
- G10L19/02—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
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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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
- G10L19/135—Vector sum excited linear prediction [VSELP]
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
-
- 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
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)
- Mathematical Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
a presente invenção refere-se a um aparelho de codificação de sinal de áudio (100) que inclui um transformador de tempo-frequência (101) que emite espectros de sub-banda de um sinal de entrada, um quantizador de energia de sub-banda (102), um calculador de tonalidade (103) que analisa a tonalidade dos espectros de sub-banda, um alocador de bits (104) que seleciona uma segunda sub-banda na qual a quantização é executada por um segundo quantizador com base no resultado da análise da tonalidade e da energia de sub-banda quantizada, e determina um primeiro número de bits a serem alocados em uma primeira sub-banda na qual a quantização é executada por um primeiro quantizador, o primeiro quantizador (106) que executa a codificação usando o primeiro número de bits, o segundo quantizador (107) que executa a codificação usando um filtro de passo, e um multiplexador (108).
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201462028805P | 2014-07-25 | 2014-07-25 | |
US62/028,805 | 2014-07-25 | ||
JP2014-219214 | 2014-10-28 | ||
JP2014219214 | 2014-10-28 | ||
PCT/JP2015/003358 WO2016013164A1 (ja) | 2014-07-25 | 2015-07-03 | 音響信号符号化装置、音響信号復号装置、音響信号符号化方法および音響信号復号方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
BR112017000629A2 true BR112017000629A2 (pt) | 2017-11-14 |
BR112017000629B1 BR112017000629B1 (pt) | 2021-02-17 |
Family
ID=55162710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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BR112017000629-4A BR112017000629B1 (pt) | 2014-07-25 | 2015-07-03 | aparelho de codificação de sinal de áudio e método de codificação de sinal de áudio |
Country Status (13)
Country | Link |
---|---|
US (3) | US10311879B2 (pt) |
EP (3) | EP3723086A1 (pt) |
JP (1) | JP6717746B2 (pt) |
KR (1) | KR102165403B1 (pt) |
CN (2) | CN114023341A (pt) |
AU (1) | AU2015291897B2 (pt) |
BR (1) | BR112017000629B1 (pt) |
CA (1) | CA2958429C (pt) |
MX (1) | MX356371B (pt) |
PL (2) | PL3174050T3 (pt) |
RU (1) | RU2669706C2 (pt) |
SG (1) | SG11201701197TA (pt) |
WO (1) | WO2016013164A1 (pt) |
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JP6383000B2 (ja) | 2014-03-03 | 2018-08-29 | サムスン エレクトロニクス カンパニー リミテッド | 帯域幅拡張のための高周波復号方法及びその装置 |
WO2015162500A2 (ko) | 2014-03-24 | 2015-10-29 | 삼성전자 주식회사 | 고대역 부호화방법 및 장치와 고대역 복호화 방법 및 장치 |
JP6611042B2 (ja) * | 2015-12-02 | 2019-11-27 | パナソニックIpマネジメント株式会社 | 音声信号復号装置及び音声信号復号方法 |
US10586546B2 (en) | 2018-04-26 | 2020-03-10 | Qualcomm Incorporated | Inversely enumerated pyramid vector quantizers for efficient rate adaptation in audio coding |
US10573331B2 (en) * | 2018-05-01 | 2020-02-25 | Qualcomm Incorporated | Cooperative pyramid vector quantizers for scalable audio coding |
US10734006B2 (en) | 2018-06-01 | 2020-08-04 | Qualcomm Incorporated | Audio coding based on audio pattern recognition |
US20220238127A1 (en) * | 2019-07-08 | 2022-07-28 | Voiceage Corporation | Method and system for coding metadata in audio streams and for flexible intra-object and inter-object bitrate adaptation |
EP3786948A1 (en) * | 2019-08-28 | 2021-03-03 | Fraunhofer Gesellschaft zur Förderung der Angewand | Time-varying time-frequency tilings using non-uniform orthogonal filterbanks based on mdct analysis/synthesis and tdar |
CN113192517B (zh) | 2020-01-13 | 2024-04-26 | 华为技术有限公司 | 一种音频编解码方法和音频编解码设备 |
CN113808597A (zh) * | 2020-05-30 | 2021-12-17 | 华为技术有限公司 | 一种音频编码方法和音频编码装置 |
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JP3250376B2 (ja) * | 1994-06-13 | 2002-01-28 | ソニー株式会社 | 情報符号化方法及び装置並びに情報復号化方法及び装置 |
JP3283413B2 (ja) | 1995-11-30 | 2002-05-20 | 株式会社日立製作所 | 符号化復号方法、符号化装置および復号装置 |
JP3157116B2 (ja) * | 1996-03-29 | 2001-04-16 | 三菱電機株式会社 | 音声符号化伝送システム |
US7389227B2 (en) * | 2000-01-14 | 2008-06-17 | C & S Technology Co., Ltd. | High-speed search method for LSP quantizer using split VQ and fixed codebook of G.729 speech encoder |
US7333930B2 (en) * | 2003-03-14 | 2008-02-19 | Agere Systems Inc. | Tonal analysis for perceptual audio coding using a compressed spectral representation |
DE602004021266D1 (de) | 2003-09-16 | 2009-07-09 | Panasonic Corp | Kodier- und dekodierapparat |
US7844451B2 (en) | 2003-09-16 | 2010-11-30 | Panasonic Corporation | Spectrum coding/decoding apparatus and method for reducing distortion of two band spectrums |
DE102004007200B3 (de) * | 2004-02-13 | 2005-08-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audiocodierung |
DE102004007184B3 (de) * | 2004-02-13 | 2005-09-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zum Quantisieren eines Informationssignals |
JP2005265865A (ja) * | 2004-02-16 | 2005-09-29 | Matsushita Electric Ind Co Ltd | オーディオ符号化のためのビット割り当て方法及び装置 |
JP4168976B2 (ja) * | 2004-05-28 | 2008-10-22 | ソニー株式会社 | オーディオ信号符号化装置及び方法 |
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AU2007332508B2 (en) * | 2006-12-13 | 2012-08-16 | Iii Holdings 12, Llc | Encoding device, decoding device, and method thereof |
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MX341885B (es) | 2012-12-13 | 2016-09-07 | Panasonic Ip Corp America | Dispositivo de codificacion de sonido de voz, dispositivo de decodificacion de sonido de voz, metodo de codificacion de sonido de voz y metodo de decodificacion de sonido de voz. |
AU2014247000B2 (en) * | 2013-04-05 | 2017-04-20 | Dolby International Ab | Audio encoder and decoder |
KR102072365B1 (ko) * | 2013-04-05 | 2020-02-03 | 돌비 인터네셔널 에이비 | 고급 양자화기 |
RU2689181C2 (ru) | 2014-03-31 | 2019-05-24 | Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. | Кодер, декодер, способ кодирования, способ декодирования и программа |
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2015
- 2015-07-03 KR KR1020167024863A patent/KR102165403B1/ko active IP Right Grant
- 2015-07-03 AU AU2015291897A patent/AU2015291897B2/en active Active
- 2015-07-03 EP EP20176535.1A patent/EP3723086A1/en active Pending
- 2015-07-03 RU RU2017102311A patent/RU2669706C2/ru active
- 2015-07-03 WO PCT/JP2015/003358 patent/WO2016013164A1/ja active Application Filing
- 2015-07-03 CN CN202111171436.3A patent/CN114023341A/zh active Pending
- 2015-07-03 EP EP15824312.1A patent/EP3174050B1/en active Active
- 2015-07-03 PL PL15824312T patent/PL3174050T3/pl unknown
- 2015-07-03 CA CA2958429A patent/CA2958429C/en active Active
- 2015-07-03 SG SG11201701197TA patent/SG11201701197TA/en unknown
- 2015-07-03 PL PL18186595T patent/PL3413307T3/pl unknown
- 2015-07-03 EP EP18186595.7A patent/EP3413307B1/en active Active
- 2015-07-03 MX MX2016015786A patent/MX356371B/es active IP Right Grant
- 2015-07-03 JP JP2016535772A patent/JP6717746B2/ja active Active
- 2015-07-03 BR BR112017000629-4A patent/BR112017000629B1/pt active IP Right Grant
- 2015-07-03 CN CN201580015301.4A patent/CN106133831B/zh active Active
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2016
- 2016-11-17 US US15/353,780 patent/US10311879B2/en active Active
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2019
- 2019-03-29 US US16/370,748 patent/US10643623B2/en active Active
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2020
- 2020-03-17 US US16/821,784 patent/US11521625B2/en active Active
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