MX356315B - Metodo, dispositivo y sistema codec. - Google Patents
Metodo, dispositivo y sistema codec.Info
- Publication number
- MX356315B MX356315B MX2016015526A MX2016015526A MX356315B MX 356315 B MX356315 B MX 356315B MX 2016015526 A MX2016015526 A MX 2016015526A MX 2016015526 A MX2016015526 A MX 2016015526A MX 356315 B MX356315 B MX 356315B
- Authority
- MX
- Mexico
- Prior art keywords
- signal
- emphasis
- audio input
- full band
- decoding end
- Prior art date
Links
- 230000005236 sound signal Effects 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
- G10L19/04—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
-
- 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
-
- 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
-
- 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
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
-
- 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
- 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
- G10L21/003—Changing voice quality, e.g. pitch or formants
- G10L21/007—Changing voice quality, e.g. pitch or formants characterised by the process used
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)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
En una modalidad de la presente invención se proporciona un método, dispositivo y sistema de códec, el método de codificación comprende: codificar una señal de banda completa procesada mediante eliminación de énfasis utilizando un parámetro de eliminación de énfasis determinado de acuerdo con un factor característico de una señal de entrada de audio, y enviar la señal de banda completa procesada mediante eliminación de énfasis a un extremo de decodificación, de manera que el extremo de decodificación realiza la decodificación mediante eliminación de énfasis correspondiente en la señal de banda completa de acuerdo con el factor característico de la señal de audio entrante, restaurando la señal de audio entrante; el método resuelve el problema en la técnica anterior de una alta probabilidad de distorsión de señal en una señal de audio restaurada en un extremo de decodificación, logra el procesamiento de eliminación de énfasis auto-adaptable de la señal de banda completa de acuerdo con el factor característico de la señal de audio, y mejora el rendimiento de la codificación, de manera que la señal de audio entrante restaurada en el extremo de decodificación tiene una fidelidad superior y está más cerca de una señal original.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410294752.3A CN105225671B (zh) | 2014-06-26 | 2014-06-26 | 编解码方法、装置及*** |
PCT/CN2015/074704 WO2015196835A1 (zh) | 2014-06-26 | 2015-03-20 | 编解码方法、装置及*** |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2016015526A MX2016015526A (es) | 2017-04-25 |
MX356315B true MX356315B (es) | 2018-05-23 |
Family
ID=54936715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2016015526A MX356315B (es) | 2014-06-26 | 2015-03-20 | Metodo, dispositivo y sistema codec. |
Country Status (15)
Country | Link |
---|---|
US (3) | US9779747B2 (es) |
EP (2) | EP3133600B1 (es) |
JP (1) | JP6496328B2 (es) |
KR (1) | KR101906522B1 (es) |
CN (2) | CN105225671B (es) |
AU (1) | AU2015281686B2 (es) |
BR (1) | BR112016026440B8 (es) |
CA (1) | CA2948410C (es) |
DE (2) | DE202015009916U1 (es) |
HK (1) | HK1219802A1 (es) |
MX (1) | MX356315B (es) |
MY (1) | MY173513A (es) |
RU (1) | RU2644078C1 (es) |
SG (1) | SG11201609523UA (es) |
WO (1) | WO2015196835A1 (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL2951819T3 (pl) * | 2013-01-29 | 2017-08-31 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Urządzenie, sposób i nośnik komputerowy do syntetyzowania sygnału audio |
CN105978540B (zh) * | 2016-05-26 | 2018-09-18 | 英特格灵芯片(天津)有限公司 | 一种连续时间信号的去加重处理电路及其方法 |
CN106601267B (zh) * | 2016-11-30 | 2019-12-06 | 武汉船舶通信研究所 | 一种基于超短波fm调制的语音增强方法 |
CN112885364B (zh) * | 2021-01-21 | 2023-10-13 | 维沃移动通信有限公司 | 音频编码方法和解码方法、音频编码装置和解码装置 |
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JP2000134105A (ja) | 1998-10-29 | 2000-05-12 | Matsushita Electric Ind Co Ltd | オーディオ変換符号化に用いられるブロックサイズを決定し適応させる方法 |
US6912496B1 (en) * | 1999-10-26 | 2005-06-28 | Silicon Automation Systems | Preprocessing modules for quality enhancement of MBE coders and decoders for signals having transmission path characteristics |
US6931373B1 (en) * | 2001-02-13 | 2005-08-16 | Hughes Electronics Corporation | Prototype waveform phase modeling for a frequency domain interpolative speech codec system |
CA2457988A1 (en) * | 2004-02-18 | 2005-08-18 | Voiceage Corporation | Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization |
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KR100789368B1 (ko) * | 2005-05-30 | 2007-12-28 | 한국전자통신연구원 | 잔차 신호 부호화 및 복호화 장치와 그 방법 |
WO2007040363A1 (en) * | 2005-10-05 | 2007-04-12 | Lg Electronics Inc. | Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor |
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JP4850086B2 (ja) | 2007-02-14 | 2012-01-11 | パナソニック株式会社 | Memsマイクロホン装置 |
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KR101413968B1 (ko) | 2008-01-29 | 2014-07-01 | 삼성전자주식회사 | 오디오 신호의 부호화, 복호화 방법 및 장치 |
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JP4818335B2 (ja) * | 2008-08-29 | 2011-11-16 | 株式会社東芝 | 信号帯域拡張装置 |
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CN101521014B (zh) * | 2009-04-08 | 2011-09-14 | 武汉大学 | 音频带宽扩展编解码装置 |
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2014
- 2014-06-26 CN CN201410294752.3A patent/CN105225671B/zh active Active
- 2014-06-26 CN CN201610617731.XA patent/CN106228991B/zh active Active
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2015
- 2015-03-20 BR BR112016026440A patent/BR112016026440B8/pt active IP Right Grant
- 2015-03-20 WO PCT/CN2015/074704 patent/WO2015196835A1/zh active Application Filing
- 2015-03-20 EP EP15812214.3A patent/EP3133600B1/en active Active
- 2015-03-20 CA CA2948410A patent/CA2948410C/en active Active
- 2015-03-20 MY MYPI2016704099A patent/MY173513A/en unknown
- 2015-03-20 MX MX2016015526A patent/MX356315B/es active IP Right Grant
- 2015-03-20 EP EP19177798.6A patent/EP3637416A1/en active Pending
- 2015-03-20 DE DE202015009916.5U patent/DE202015009916U1/de active Active
- 2015-03-20 KR KR1020167032571A patent/KR101906522B1/ko active IP Right Grant
- 2015-03-20 SG SG11201609523UA patent/SG11201609523UA/en unknown
- 2015-03-20 JP JP2016574888A patent/JP6496328B2/ja active Active
- 2015-03-20 RU RU2016151460A patent/RU2644078C1/ru active
- 2015-03-20 AU AU2015281686A patent/AU2015281686B2/en active Active
- 2015-03-20 DE DE202015009942.4U patent/DE202015009942U1/de active Active
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2016
- 2016-07-05 HK HK16107771.2A patent/HK1219802A1/zh unknown
- 2016-12-27 US US15/391,339 patent/US9779747B2/en active Active
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2017
- 2017-09-06 US US15/696,591 patent/US10339945B2/en active Active
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2019
- 2019-05-22 US US16/419,777 patent/US10614822B2/en active Active
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