BR0012538A - Método e equipamento para manter uma taxa de bits alvo em um codificador de fala - Google Patents

Método e equipamento para manter uma taxa de bits alvo em um codificador de fala

Info

Publication number
BR0012538A
BR0012538A BR0012538-5A BR0012538A BR0012538A BR 0012538 A BR0012538 A BR 0012538A BR 0012538 A BR0012538 A BR 0012538A BR 0012538 A BR0012538 A BR 0012538A
Authority
BR
Brazil
Prior art keywords
bit rate
speech encoder
maintaining
equipment
quotient
Prior art date
Application number
BR0012538-5A
Other languages
English (en)
Inventor
Sharath Manjunath
Andrew P Dejaco
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0012538A publication Critical patent/BR0012538A/pt

Links

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
    • G10L19/04—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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Detection And Correction Of Errors (AREA)

Abstract

"MéTODO E EQUIPAMENTO PARA MANTER UMA TAXA DE BITS ALVO EM UM CODIFICADOR DE FALA". Um método e um equipamento para manter uma taxa de bits alvo em um codificador de fala inclui um codificador de fala para codificar um frame com uma taxa de codificação pré-selecionada, computar uma taxa de bits média corrida para um número predefinido de frames codificados, subtrair a taxa de bits média corrida de uma taxa de bits média alvo predefinida e dividir a diferença da taxa de codificação pré-selecionada. Caso o valor do quociente seja negativo, é acumulado um número predefinido de contagens de ocorrência possíveis de valores limite de desempenho de codificador de fala que são menores que um valor limite de desempenho corrente, o número acumulado sendo maior que o valor absoluto do quociente. Caso o valor do quociente seja positivo, é acumulado um número predefinido de contagens de ocorrências possíveis de valores limite de desempenho de codificador de fala que são maiores que o valor limite de desempenho corrente, o número acumulado sendo maior que o quociente.
BR0012538-5A 1999-07-19 2000-07-19 Método e equipamento para manter uma taxa de bits alvo em um codificador de fala BR0012538A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/356,493 US6330532B1 (en) 1999-07-19 1999-07-19 Method and apparatus for maintaining a target bit rate in a speech coder
PCT/US2000/019670 WO2001006490A1 (en) 1999-07-19 2000-07-19 Method and apparatus for maintaining a target bit rate in a speech coder

Publications (1)

Publication Number Publication Date
BR0012538A true BR0012538A (pt) 2002-07-02

Family

ID=23401670

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0012538-5A BR0012538A (pt) 1999-07-19 2000-07-19 Método e equipamento para manter uma taxa de bits alvo em um codificador de fala

Country Status (12)

Country Link
US (1) US6330532B1 (pt)
EP (1) EP1214705B1 (pt)
JP (1) JP4782332B2 (pt)
KR (1) KR100754591B1 (pt)
CN (1) CN1161749C (pt)
AT (1) ATE288122T1 (pt)
AU (1) AU6112000A (pt)
BR (1) BR0012538A (pt)
DE (1) DE60017763T2 (pt)
ES (1) ES2240121T3 (pt)
HK (1) HK1045397B (pt)
WO (1) WO2001006490A1 (pt)

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* Cited by examiner, † Cited by third party
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US6456964B2 (en) * 1998-12-21 2002-09-24 Qualcomm, Incorporated Encoding of periodic speech using prototype waveforms
EP1095370A1 (en) * 1999-04-05 2001-05-02 Hughes Electronics Corporation Spectral phase modeling of the prototype waveform components for a frequency domain interpolative speech codec system
US6954727B1 (en) * 1999-05-28 2005-10-11 Koninklijke Philips Electronics N.V. Reducing artifact generation in a vocoder
US6658112B1 (en) * 1999-08-06 2003-12-02 General Dynamics Decision Systems, Inc. Voice decoder and method for detecting channel errors using spectral energy evolution
EP1338114B1 (en) * 2000-11-30 2009-03-11 ArrayComm LLC Training sequence for a radio communications system
US8090577B2 (en) * 2002-08-08 2012-01-03 Qualcomm Incorported Bandwidth-adaptive quantization
GB0321093D0 (en) * 2003-09-09 2003-10-08 Nokia Corp Multi-rate coding
US7483701B2 (en) * 2005-02-11 2009-01-27 Cisco Technology, Inc. System and method for handling media in a seamless handoff environment
US7634413B1 (en) * 2005-02-25 2009-12-15 Apple Inc. Bitrate constrained variable bitrate audio encoding
US8090573B2 (en) * 2006-01-20 2012-01-03 Qualcomm Incorporated Selection of encoding modes and/or encoding rates for speech compression with open loop re-decision
US8346544B2 (en) * 2006-01-20 2013-01-01 Qualcomm Incorporated Selection of encoding modes and/or encoding rates for speech compression with closed loop re-decision
US8032369B2 (en) * 2006-01-20 2011-10-04 Qualcomm Incorporated Arbitrary average data rates for variable rate coders
US8260609B2 (en) 2006-07-31 2012-09-04 Qualcomm Incorporated Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
US8725499B2 (en) * 2006-07-31 2014-05-13 Qualcomm Incorporated Systems, methods, and apparatus for signal change detection
US8532984B2 (en) * 2006-07-31 2013-09-10 Qualcomm Incorporated Systems, methods, and apparatus for wideband encoding and decoding of active frames
US8780717B2 (en) * 2006-09-21 2014-07-15 General Instrument Corporation Video quality of service management and constrained fidelity constant bit rate video encoding systems and method
EP1918909B1 (en) * 2006-11-03 2010-07-07 Psytechnics Ltd Sampling error compensation
US8279889B2 (en) * 2007-01-04 2012-10-02 Qualcomm Incorporated Systems and methods for dimming a first packet associated with a first bit rate to a second packet associated with a second bit rate
US9653088B2 (en) * 2007-06-13 2017-05-16 Qualcomm Incorporated Systems, methods, and apparatus for signal encoding using pitch-regularizing and non-pitch-regularizing coding
US8600740B2 (en) * 2008-01-28 2013-12-03 Qualcomm Incorporated Systems, methods and apparatus for context descriptor transmission
FR2944640A1 (fr) * 2009-04-17 2010-10-22 France Telecom Procede et dispositif d'evaluation objective de la qualite vocale d'un signal de parole prenant en compte la classification du bruit de fond contenu dans le signal.
KR20110001130A (ko) * 2009-06-29 2011-01-06 삼성전자주식회사 가중 선형 예측 변환을 이용한 오디오 신호 부호화 및 복호화 장치 및 그 방법
US9263054B2 (en) * 2013-02-21 2016-02-16 Qualcomm Incorporated Systems and methods for controlling an average encoding rate for speech signal encoding
US9437205B2 (en) * 2013-05-10 2016-09-06 Tencent Technology (Shenzhen) Company Limited Method, application, and device for audio signal transmission
US9953661B2 (en) * 2014-09-26 2018-04-24 Cirrus Logic Inc. Neural network voice activity detection employing running range normalization

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
EP0725384A3 (en) * 1988-05-26 1996-12-27 Pacific Comm Sciences Inc Adaptive transform coding
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
ES2225321T3 (es) 1991-06-11 2005-03-16 Qualcomm Incorporated Aparaato y procedimiento para el enmascaramiento de errores en tramas de datos.
US5884253A (en) 1992-04-09 1999-03-16 Lucent Technologies, Inc. Prototype waveform speech coding with interpolation of pitch, pitch-period waveforms, and synthesis filter
US5784532A (en) 1994-02-16 1998-07-21 Qualcomm Incorporated Application specific integrated circuit (ASIC) for performing rapid speech compression in a mobile telephone system
US5761636A (en) * 1994-03-09 1998-06-02 Motorola, Inc. Bit allocation method for improved audio quality perception using psychoacoustic parameters
TW271524B (pt) 1994-08-05 1996-03-01 Qualcomm Inc
US5668925A (en) * 1995-06-01 1997-09-16 Martin Marietta Corporation Low data rate speech encoder with mixed excitation
JPH10247098A (ja) * 1997-03-04 1998-09-14 Mitsubishi Electric Corp 可変レート音声符号化方法、可変レート音声復号化方法
BR9804811A (pt) * 1997-04-07 1999-08-17 Koninkl Philips Electronics Nv Sistema de transmissÆo transmissor codificador de voz e processo de codifica-Æo de voz
JP2002530706A (ja) * 1998-11-13 2002-09-17 クゥアルコム・インコーポレイテッド 閉ループ可変速度マルチモード予測スピーチコーダ

Also Published As

Publication number Publication date
ES2240121T3 (es) 2005-10-16
JP2003505723A (ja) 2003-02-12
HK1045397A1 (en) 2002-11-22
KR100754591B1 (ko) 2007-09-05
ATE288122T1 (de) 2005-02-15
US6330532B1 (en) 2001-12-11
CN1161749C (zh) 2004-08-11
AU6112000A (en) 2001-02-05
EP1214705B1 (en) 2005-01-26
DE60017763D1 (de) 2005-03-03
HK1045397B (zh) 2005-04-22
JP4782332B2 (ja) 2011-09-28
WO2001006490A1 (en) 2001-01-25
EP1214705A1 (en) 2002-06-19
DE60017763T2 (de) 2006-01-12
CN1361912A (zh) 2002-07-31
KR20020013963A (ko) 2002-02-21

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 12A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2162 DE 12/06/2012.

B15K Others concerning applications: alteration of classification

Ipc: G10L 19/002 (2013.01), G10L 19/18 (2013.01)