MX352078B - Metodo de decodificacion y aparato de decodificacion. - Google Patents
Metodo de decodificacion y aparato de decodificacion.Info
- Publication number
- MX352078B MX352078B MX2015017002A MX2015017002A MX352078B MX 352078 B MX352078 B MX 352078B MX 2015017002 A MX2015017002 A MX 2015017002A MX 2015017002 A MX2015017002 A MX 2015017002A MX 352078 B MX352078 B MX 352078B
- Authority
- MX
- Mexico
- Prior art keywords
- frame
- current frame
- gain
- subframe
- subframes
- Prior art date
Links
- 230000003407 synthetizing effect Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
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
- 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
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
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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
- 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
- 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
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L21/0232—Processing in the frequency domain
-
- 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
-
- 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
- G10L21/0388—Details of processing therefor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Mobile Radio Communication Systems (AREA)
- Error Detection And Correction (AREA)
Abstract
Las modalidades de la presente invención proporcionan un método de decodificación y un aparato de decodificación. El método de decodificación incluye: en un caso en donde se determina que una trama actual es una trama perdida, sintetizar una señal de banda de alta frecuencia de acuerdo con un resultado de la decodificación de una trama anterior; determinar ganancias de subtrama de múltiples subtramas de la trama actual de acuerdo con las ganancias de subtrama de subtramas de al menos una trama anterior a la trama actual y un gradiente de ganancia entre las subtramas de dicha al menos una trama; determinar una ganancia global de la trama actual; y ajustar, de acuerdo con la ganancia global y las ganancias de subtrama de las múltiples subtramas, la señal de banda de alta frecuencia sintetizada para obtener una señal de banda de alta frecuencia de la trama actual. Una ganancia de subtrama de la trama actual se obtiene de acuerdo con un gradiente entre las ganancias de subtrama de subtramas anteriores a la trama actual, de modo que la transición antes y después de la pérdida de tramas es más continua, reduciendo así el ruido durante la reconstrucción de la señal y mejorando la calidad de la voz.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310298040.4A CN104299614B (zh) | 2013-07-16 | 2013-07-16 | 解码方法和解码装置 |
PCT/CN2014/077096 WO2015007114A1 (zh) | 2013-07-16 | 2014-05-09 | 解码方法和解码装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
MX2015017002A MX2015017002A (es) | 2016-04-25 |
MX352078B true MX352078B (es) | 2017-11-08 |
Family
ID=52319313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2015017002A MX352078B (es) | 2013-07-16 | 2014-05-09 | Metodo de decodificacion y aparato de decodificacion. |
Country Status (20)
Country | Link |
---|---|
US (2) | US10102862B2 (es) |
EP (2) | EP3594942B1 (es) |
JP (2) | JP6235707B2 (es) |
KR (2) | KR101868767B1 (es) |
CN (2) | CN104299614B (es) |
AU (1) | AU2014292680B2 (es) |
BR (1) | BR112015032273B1 (es) |
CA (1) | CA2911053C (es) |
CL (1) | CL2015003739A1 (es) |
ES (1) | ES2746217T3 (es) |
HK (1) | HK1206477A1 (es) |
IL (1) | IL242430B (es) |
MX (1) | MX352078B (es) |
MY (1) | MY180290A (es) |
NZ (1) | NZ714039A (es) |
RU (1) | RU2628159C2 (es) |
SG (1) | SG11201509150UA (es) |
UA (1) | UA112401C2 (es) |
WO (1) | WO2015007114A1 (es) |
ZA (1) | ZA201508155B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104299614B (zh) * | 2013-07-16 | 2017-12-29 | 华为技术有限公司 | 解码方法和解码装置 |
US10109284B2 (en) | 2016-02-12 | 2018-10-23 | Qualcomm Incorporated | Inter-channel encoding and decoding of multiple high-band audio signals |
CN107248411B (zh) | 2016-03-29 | 2020-08-07 | 华为技术有限公司 | 丢帧补偿处理方法和装置 |
CN108023869B (zh) * | 2016-10-28 | 2021-03-19 | 海能达通信股份有限公司 | 多媒体通信的参数调整方法、装置及移动终端 |
CN108922551B (zh) * | 2017-05-16 | 2021-02-05 | 博通集成电路(上海)股份有限公司 | 用于补偿丢失帧的电路及方法 |
JP7139238B2 (ja) | 2018-12-21 | 2022-09-20 | Toyo Tire株式会社 | 高分子材料の硫黄架橋構造解析方法 |
CN113473229B (zh) * | 2021-06-25 | 2022-04-12 | 荣耀终端有限公司 | 一种动态调节丢帧阈值的方法及相关设备 |
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JP3707116B2 (ja) | 1995-10-26 | 2005-10-19 | ソニー株式会社 | 音声復号化方法及び装置 |
US7072832B1 (en) | 1998-08-24 | 2006-07-04 | Mindspeed Technologies, Inc. | System for speech encoding having an adaptive encoding arrangement |
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CA2388439A1 (en) * | 2002-05-31 | 2003-11-30 | Voiceage Corporation | A method and device for efficient frame erasure concealment in linear predictive based speech codecs |
KR100501930B1 (ko) * | 2002-11-29 | 2005-07-18 | 삼성전자주식회사 | 적은 계산량으로 고주파수 성분을 복원하는 오디오 디코딩방법 및 장치 |
US6985856B2 (en) * | 2002-12-31 | 2006-01-10 | Nokia Corporation | Method and device for compressed-domain packet loss concealment |
US7146309B1 (en) * | 2003-09-02 | 2006-12-05 | Mindspeed Technologies, Inc. | Deriving seed values to generate excitation values in a speech coder |
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KR101008508B1 (ko) | 2006-08-15 | 2011-01-17 | 브로드콤 코포레이션 | 패킷 손실 후의 디코더 상태의 리페이징 |
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2013
- 2013-07-16 CN CN201310298040.4A patent/CN104299614B/zh active Active
- 2013-07-16 CN CN201711101050.9A patent/CN107818789B/zh active Active
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2014
- 2014-05-09 AU AU2014292680A patent/AU2014292680B2/en active Active
- 2014-05-09 BR BR112015032273-5A patent/BR112015032273B1/pt active IP Right Grant
- 2014-05-09 MX MX2015017002A patent/MX352078B/es active IP Right Grant
- 2014-05-09 JP JP2016522198A patent/JP6235707B2/ja active Active
- 2014-05-09 RU RU2015155744A patent/RU2628159C2/ru active
- 2014-05-09 NZ NZ714039A patent/NZ714039A/en unknown
- 2014-05-09 EP EP19162439.4A patent/EP3594942B1/en active Active
- 2014-05-09 KR KR1020177033206A patent/KR101868767B1/ko active IP Right Grant
- 2014-05-09 WO PCT/CN2014/077096 patent/WO2015007114A1/zh active Application Filing
- 2014-05-09 EP EP14826461.7A patent/EP2983171B1/en active Active
- 2014-05-09 CA CA2911053A patent/CA2911053C/en active Active
- 2014-05-09 ES ES14826461T patent/ES2746217T3/es active Active
- 2014-05-09 SG SG11201509150UA patent/SG11201509150UA/en unknown
- 2014-05-09 KR KR1020157033903A patent/KR101800710B1/ko active IP Right Grant
- 2014-05-09 MY MYPI2015704599A patent/MY180290A/en unknown
- 2014-09-05 UA UAA201512807A patent/UA112401C2/uk unknown
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2015
- 2015-07-16 HK HK15106794.8A patent/HK1206477A1/xx unknown
- 2015-11-03 IL IL242430A patent/IL242430B/en active IP Right Grant
- 2015-11-04 ZA ZA2015/08155A patent/ZA201508155B/en unknown
- 2015-12-28 CL CL2015003739A patent/CL2015003739A1/es unknown
- 2015-12-31 US US14/985,831 patent/US10102862B2/en active Active
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2017
- 2017-10-26 JP JP2017206975A patent/JP6573178B2/ja active Active
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2018
- 2018-09-28 US US16/145,469 patent/US10741186B2/en active Active
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