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BR9913715B1 - processo de codificaÇço de anÁlise por sÍntese preditiva linear, e, codificador de anÁlise por sÍntese preditivo linear - Google Patents

processo de codificaÇço de anÁlise por sÍntese preditiva linear, e, codificador de anÁlise por sÍntese preditivo linear

Info

Publication number
BR9913715B1
BR9913715B1 BRPI9913715-1B1A BR9913715A BR9913715B1 BR 9913715 B1 BR9913715 B1 BR 9913715B1 BR 9913715 A BR9913715 A BR 9913715A BR 9913715 B1 BR9913715 B1 BR 9913715B1
Authority
BR
Brazil
Prior art keywords
linear predictive
synthesis analysis
predictive synthesis
coding process
coder
Prior art date
Application number
BRPI9913715-1B1A
Other languages
English (en)
Other versions
BR9913715A (pt
Inventor
Erik Ekudden
Roar Hagen
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20412633&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9913715(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Publication of BR9913715A publication Critical patent/BR9913715A/pt
Publication of BR9913715B1 publication Critical patent/BR9913715B1/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
    • G10L19/08—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
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
BRPI9913715-1B1A 1998-09-16 1999-08-24 processo de codificaÇço de anÁlise por sÍntese preditiva linear, e, codificador de anÁlise por sÍntese preditivo linear BR9913715B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9803165A SE519563C2 (sv) 1998-09-16 1998-09-16 Förfarande och kodare för linjär prediktiv analys-genom- synteskodning
PCT/SE1999/001433 WO2000016315A2 (en) 1998-09-16 1999-08-24 Linear predictive analysis-by-synthesis encoding method and encoder

Publications (2)

Publication Number Publication Date
BR9913715A BR9913715A (pt) 2001-05-29
BR9913715B1 true BR9913715B1 (pt) 2013-07-30

Family

ID=20412633

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9913715-1B1A BR9913715B1 (pt) 1998-09-16 1999-08-24 processo de codificaÇço de anÁlise por sÍntese preditiva linear, e, codificador de anÁlise por sÍntese preditivo linear

Country Status (15)

Country Link
US (1) US6732069B1 (pt)
EP (1) EP1114415B1 (pt)
JP (1) JP3893244B2 (pt)
KR (1) KR100416363B1 (pt)
CN (1) CN1132157C (pt)
AR (1) AR021221A1 (pt)
AU (1) AU756491B2 (pt)
BR (1) BR9913715B1 (pt)
CA (1) CA2344302C (pt)
DE (1) DE69922388T2 (pt)
MY (1) MY122181A (pt)
SE (1) SE519563C2 (pt)
TW (1) TW442776B (pt)
WO (1) WO2000016315A2 (pt)
ZA (1) ZA200101867B (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8027242B2 (en) 2005-10-21 2011-09-27 Qualcomm Incorporated Signal coding and decoding based on spectral dynamics
US8392176B2 (en) 2006-04-10 2013-03-05 Qualcomm Incorporated Processing of excitation in audio coding and decoding
US8428957B2 (en) 2007-08-24 2013-04-23 Qualcomm Incorporated Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands
JP5326465B2 (ja) 2008-09-26 2013-10-30 富士通株式会社 オーディオ復号方法、装置、及びプログラム
JP5309944B2 (ja) * 2008-12-11 2013-10-09 富士通株式会社 オーディオ復号装置、方法、及びプログラム
CN102985966B (zh) * 2010-07-16 2016-07-06 瑞典爱立信有限公司 音频编码器和解码器及用于音频信号的编码和解码的方法
EP2761616A4 (en) * 2011-10-18 2015-06-24 Ericsson Telefon Ab L M IMPROVED METHOD AND DEVICE FOR AN ADAPTIVE MULTIRATE CODEC
US12088643B2 (en) * 2022-04-15 2024-09-10 Google Llc Videoconferencing with reduced quality interruptions upon participant join

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0422232B1 (en) * 1989-04-25 1996-11-13 Kabushiki Kaisha Toshiba Voice encoder
JP2776050B2 (ja) * 1991-02-26 1998-07-16 日本電気株式会社 音声符号化方式
SE469764B (sv) * 1992-01-27 1993-09-06 Ericsson Telefon Ab L M Saett att koda en samplad talsignalvektor
EP0577488B9 (en) * 1992-06-29 2007-10-03 Nippon Telegraph And Telephone Corporation Speech coding method and apparatus for the same
IT1257431B (it) * 1992-12-04 1996-01-16 Sip Procedimento e dispositivo per la quantizzazione dei guadagni dell'eccitazione in codificatori della voce basati su tecniche di analisi per sintesi
CA2118986C (en) * 1994-03-14 1998-09-22 Toshiki Miyano Speech coding system
US5651090A (en) * 1994-05-06 1997-07-22 Nippon Telegraph And Telephone Corporation Coding method and coder for coding input signals of plural channels using vector quantization, and decoding method and decoder therefor
SE504397C2 (sv) * 1995-05-03 1997-01-27 Ericsson Telefon Ab L M Metod för förstärkningskvantisering vid linjärprediktiv talkodning med kodboksexcitering
EP0773630B1 (en) * 1995-05-22 2004-08-18 Ntt Mobile Communications Network Inc. Sound decoding device
EP0764939B1 (en) * 1995-09-19 2002-05-02 AT&T Corp. Synthesis of speech signals in the absence of coded parameters
KR100277096B1 (ko) * 1997-09-10 2001-01-15 윤종용 음성압축을 위한 코드워드와 양자화된 이득 선택방법
US6199037B1 (en) * 1997-12-04 2001-03-06 Digital Voice Systems, Inc. Joint quantization of speech subframe voicing metrics and fundamental frequencies
US6104992A (en) * 1998-08-24 2000-08-15 Conexant Systems, Inc. Adaptive gain reduction to produce fixed codebook target signal
US6260010B1 (en) * 1998-08-24 2001-07-10 Conexant Systems, Inc. Speech encoder using gain normalization that combines open and closed loop gains

Also Published As

Publication number Publication date
WO2000016315A2 (en) 2000-03-23
SE9803165L (sv) 2000-03-17
CN1132157C (zh) 2003-12-24
EP1114415A2 (en) 2001-07-11
KR20010075134A (ko) 2001-08-09
CA2344302C (en) 2010-11-30
JP2002525897A (ja) 2002-08-13
AU6375799A (en) 2000-04-03
DE69922388T2 (de) 2005-12-22
JP3893244B2 (ja) 2007-03-14
EP1114415B1 (en) 2004-12-01
WO2000016315A3 (en) 2000-05-25
CN1318190A (zh) 2001-10-17
TW442776B (en) 2001-06-23
BR9913715A (pt) 2001-05-29
ZA200101867B (en) 2001-09-13
SE519563C2 (sv) 2003-03-11
MY122181A (en) 2006-03-31
KR100416363B1 (ko) 2004-01-31
DE69922388D1 (de) 2005-01-05
AU756491B2 (en) 2003-01-16
CA2344302A1 (en) 2000-03-23
AR021221A1 (es) 2002-07-03
US6732069B1 (en) 2004-05-04
SE9803165D0 (sv) 1998-09-16

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 30/07/2013, OBSERVADAS AS CONDICOES LEGAIS.

B15K Others concerning applications: alteration of classification

Ipc: G10L 19/083 (2013.01)