BR112015032273A2 - processo de decodificação e aparelho de decodificação - Google Patents

processo de decodificação e aparelho de decodificação

Info

Publication number
BR112015032273A2
BR112015032273A2 BR112015032273A BR112015032273A BR112015032273A2 BR 112015032273 A2 BR112015032273 A2 BR 112015032273A2 BR 112015032273 A BR112015032273 A BR 112015032273A BR 112015032273 A BR112015032273 A BR 112015032273A BR 112015032273 A2 BR112015032273 A2 BR 112015032273A2
Authority
BR
Brazil
Prior art keywords
frame
current frame
gain
subframes
subframe
Prior art date
Application number
BR112015032273A
Other languages
English (en)
Other versions
BR112015032273B1 (pt
Inventor
Wang Bin
Miao Lei
Liu Zexin
Original Assignee
Huawei Tech Co Ltd
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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of BR112015032273A2 publication Critical patent/BR112015032273A2/pt
Publication of BR112015032273B1 publication Critical patent/BR112015032273B1/pt

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (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

a presente invenção refere-se a um processo de decodifi-cação e a um aparelho de decodificação. o processo de decodificação compreende: no caso no qual se determina que um quadro atual é um quadro perdido, sintetizar (s110) um sinal de banda de alta frequência, de acordo com um resultado de decodificação de um quadro prévio; determinar (s120) ganhos de subquadros múltiplos do quadro atual , de acordo com ganhos de subquadros de subquadros de pelo menos um quadro prévio ao quadro atual, e um gradiente de ganho entre os subquadros do pelo menos um quadro; determinar (s130) um ganho global do quadro atual (130); e ajustar (s140), de acordo com o ganho global e o ganho de subquadro dos múltiplos subquadros, o sinal de banda de alta frequência sintetizado para obter um sinal de banda de alta frequência do quadro atual. um ganho de subquadro do quadro atual é obtido de acordo com um gradiente entre ganhos de subquadros de subquadros prévios ao quadro atual, de modo que a transição, antes e após perda do quadro, é mais contínua, desse modo, reduzindo a reconstrução do ruído do sinal, e aperfeiçoando a qualidade de fala.
BR112015032273-5A 2013-07-16 2014-05-09 Método de decodificação e aparelho de decodificação para sinal de fala BR112015032273B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201310298040.4 2013-07-16
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
BR112015032273A2 true BR112015032273A2 (pt) 2017-07-25
BR112015032273B1 BR112015032273B1 (pt) 2021-10-05

Family

ID=52319313

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015032273-5A BR112015032273B1 (pt) 2013-07-16 2014-05-09 Método de decodificação e aparelho de decodificação para sinal de fala

Country Status (20)

Country Link
US (2) US10102862B2 (pt)
EP (2) EP2983171B1 (pt)
JP (2) JP6235707B2 (pt)
KR (2) KR101800710B1 (pt)
CN (2) CN104299614B (pt)
AU (1) AU2014292680B2 (pt)
BR (1) BR112015032273B1 (pt)
CA (1) CA2911053C (pt)
CL (1) CL2015003739A1 (pt)
ES (1) ES2746217T3 (pt)
HK (1) HK1206477A1 (pt)
IL (1) IL242430B (pt)
MX (1) MX352078B (pt)
MY (1) MY180290A (pt)
NZ (1) NZ714039A (pt)
RU (1) RU2628159C2 (pt)
SG (1) SG11201509150UA (pt)
UA (1) UA112401C2 (pt)
WO (1) WO2015007114A1 (pt)
ZA (1) ZA201508155B (pt)

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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
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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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Also Published As

Publication number Publication date
US10741186B2 (en) 2020-08-11
UA112401C2 (uk) 2016-08-25
EP3594942A1 (en) 2020-01-15
SG11201509150UA (en) 2015-12-30
ZA201508155B (en) 2017-04-26
JP6235707B2 (ja) 2017-11-22
JP2016530549A (ja) 2016-09-29
EP2983171A1 (en) 2016-02-10
KR101800710B1 (ko) 2017-11-23
CN104299614A (zh) 2015-01-21
NZ714039A (en) 2017-01-27
CA2911053C (en) 2019-10-15
WO2015007114A1 (zh) 2015-01-22
US20190035408A1 (en) 2019-01-31
EP2983171B1 (en) 2019-07-10
MY180290A (en) 2020-11-27
HK1206477A1 (en) 2016-01-08
AU2014292680A1 (en) 2015-11-26
JP2018028688A (ja) 2018-02-22
KR20170129291A (ko) 2017-11-24
CN107818789B (zh) 2020-11-17
CL2015003739A1 (es) 2016-12-02
KR20160003176A (ko) 2016-01-08
US20160118055A1 (en) 2016-04-28
JP6573178B2 (ja) 2019-09-11
CN107818789A (zh) 2018-03-20
MX352078B (es) 2017-11-08
MX2015017002A (es) 2016-04-25
KR101868767B1 (ko) 2018-06-18
EP3594942B1 (en) 2022-07-06
RU2015155744A (ru) 2017-06-30
CN104299614B (zh) 2017-12-29
AU2014292680B2 (en) 2017-03-02
RU2628159C2 (ru) 2017-08-15
BR112015032273B1 (pt) 2021-10-05
EP2983171A4 (en) 2016-06-29
CA2911053A1 (en) 2015-01-22
ES2746217T3 (es) 2020-03-05
IL242430B (en) 2020-07-30
US10102862B2 (en) 2018-10-16

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B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: AS CLASSIFICACOES ANTERIORES ERAM: G10L 19/00 , G10L 21/02

Ipc: G10L 19/005 (2013.01), G10L 19/02 (2000.01), G10L

B09B Patent application refused [chapter 9.2 patent gazette]
B12B Appeal against refusal [chapter 12.2 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 09/05/2014, OBSERVADAS AS CONDICOES LEGAIS.