BR0012537A - Método e aparelho para subamostrar informação de espectro de fase - Google Patents

Método e aparelho para subamostrar informação de espectro de fase

Info

Publication number
BR0012537A
BR0012537A BR0012537-7A BR0012537A BR0012537A BR 0012537 A BR0012537 A BR 0012537A BR 0012537 A BR0012537 A BR 0012537A BR 0012537 A BR0012537 A BR 0012537A
Authority
BR
Brazil
Prior art keywords
phase
prototype waveform
prototype
vector
representatives
Prior art date
Application number
BR0012537-7A
Other languages
English (en)
Other versions
BRPI0012537B1 (pt
Inventor
Sharath Manjunath
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 BR0012537A publication Critical patent/BR0012537A/pt
Publication of BRPI0012537B1 publication Critical patent/BRPI0012537B1/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
    • G10L19/097—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using prototype waveform decomposition or prototype waveform interpolative [PWI] coders
    • 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

"MéTODO E APARELHO PARA SUBAMOSTRAR INFORMAçãO DE ESPECTRO DE FASE". Um método e aparelho para subamostrar informação de espectro de fase incluem um codificador de fala para analisar e reconstruir um protótipo de um frame pelo uso de subamostragem inteligente de informação de espectro de fase do protótipo. A fim de analisar o protótipo, o codificador de fala produz parâmetros de fase de um protótipo referência, gera parâmetros de fase de um protótipo atual, e correlaciona os parâmetros de fase do protótipo atual com os parâmetros de fase do protótipo referência em múltiplas bandas de freq³ência. A fim de reconstruir o protótipo usando valores de deslocamento de fase linear, o codificador de fala produz parâmetros de fase do protótipo referência, gera um conjunto de valores de deslocamento de fase linear associado ao protótipo, e compõe um vetor de fase a partir dos parâmetros de fase e dos valores de deslocamento de fase linear através de múltiplas bandas de freq³ência. A fim de reconstruir o protótipo usando valores de rotação circular, o codificador de fala produz um conjunto de valores de rotação circular associado ao protótipo, gera um conjunto de formas de onda de banda passante em múltiplas bandas de freq³ência, as formas de onda de banda passante sendo associadas aos parâmetros de fase do protótipo referência, e modifica as formas de onda de banda passante baseadas nos valores de rotação circular
BRPI0012537A 1999-07-19 2000-07-18 método de processamento de um protótipo de um frame em um codificador de fala e codificador de fala BRPI0012537B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/356,491 US6397175B1 (en) 1999-07-19 1999-07-19 Method and apparatus for subsampling phase spectrum information
PCT/US2000/019601 WO2001006492A1 (en) 1999-07-19 2000-07-18 Method and apparatus for subsampling phase spectrum information

Publications (2)

Publication Number Publication Date
BR0012537A true BR0012537A (pt) 2002-11-26
BRPI0012537B1 BRPI0012537B1 (pt) 2016-06-21

Family

ID=23401657

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0012537A BRPI0012537B1 (pt) 1999-07-19 2000-07-18 método de processamento de um protótipo de um frame em um codificador de fala e codificador de fala

Country Status (12)

Country Link
US (3) US6397175B1 (pt)
EP (2) EP1617416B1 (pt)
JP (2) JP4860859B2 (pt)
KR (2) KR100754580B1 (pt)
CN (2) CN1279510C (pt)
AT (2) ATE379832T1 (pt)
AU (1) AU6221600A (pt)
BR (1) BRPI0012537B1 (pt)
DE (2) DE60023913T2 (pt)
ES (2) ES2297578T3 (pt)
HK (1) HK1047816B (pt)
WO (1) WO2001006492A1 (pt)

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JP4178319B2 (ja) * 2002-09-13 2008-11-12 インターナショナル・ビジネス・マシーンズ・コーポレーション 音声処理におけるフェーズ・アライメント
US6789058B2 (en) * 2002-10-15 2004-09-07 Mindspeed Technologies, Inc. Complexity resource manager for multi-channel speech processing
US7376553B2 (en) * 2003-07-08 2008-05-20 Robert Patel Quinn Fractal harmonic overtone mapping of speech and musical sounds
DE602004004950T2 (de) * 2003-07-09 2007-10-31 Samsung Electronics Co., Ltd., Suwon Vorrichtung und Verfahren zum bitraten-skalierbaren Sprachkodieren und -dekodieren
KR101135726B1 (ko) * 2004-04-05 2012-04-16 코닌클리케 필립스 일렉트로닉스 엔.브이. 인코더, 디코더, 인코딩 방법, 디코딩 방법 및 기록 매체
JP4207902B2 (ja) * 2005-02-02 2009-01-14 ヤマハ株式会社 音声合成装置およびプログラム
CN101317218B (zh) * 2005-12-02 2013-01-02 高通股份有限公司 用于频域波形对准的系统、方法和设备
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
KR101186133B1 (ko) * 2006-10-10 2012-09-27 퀄컴 인코포레이티드 오디오 신호들을 인코딩 및 디코딩하는 방법 및 장치
KR20090122143A (ko) * 2008-05-23 2009-11-26 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
EP2631906A1 (en) 2012-02-27 2013-08-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Phase coherence control for harmonic signals in perceptual audio codecs
PL3866164T3 (pl) * 2013-02-05 2023-12-27 Telefonaktiebolaget Lm Ericsson (Publ) Ukrywanie utraty ramki sygnału audio
EP3353784B1 (en) 2015-09-25 2025-03-05 VoiceAge Corporation Method and system for encoding left and right channels of a stereo sound signal selecting between two and four sub-frames models depending on the bit budget
US12125492B2 (en) 2015-09-25 2024-10-22 Voiceage Coproration Method and system for decoding left and right channels of a stereo sound signal
CN107424616B (zh) * 2017-08-21 2020-09-11 广东工业大学 一种相位谱去除掩模的方法与装置

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EP0422232B1 (en) * 1989-04-25 1996-11-13 Kabushiki Kaisha Toshiba Voice encoder
US5263119A (en) * 1989-06-29 1993-11-16 Fujitsu Limited Gain-shape vector quantization method and apparatus
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Also Published As

Publication number Publication date
US6397175B1 (en) 2002-05-28
US7085712B2 (en) 2006-08-01
HK1047816B (zh) 2007-03-16
DE60023913D1 (de) 2005-12-15
CN1375095A (zh) 2002-10-16
US20050119880A1 (en) 2005-06-02
JP4860859B2 (ja) 2012-01-25
EP1617416A3 (en) 2006-05-03
KR20020013966A (ko) 2002-02-21
CN1290077C (zh) 2006-12-13
EP1204968B1 (en) 2005-11-09
ES2297578T3 (es) 2008-05-01
ATE309600T1 (de) 2005-11-15
EP1617416B1 (en) 2007-11-28
EP1617416A2 (en) 2006-01-18
AU6221600A (en) 2001-02-05
KR100752001B1 (ko) 2007-08-28
ATE379832T1 (de) 2007-12-15
WO2001006492A1 (en) 2001-01-25
CN1510660A (zh) 2004-07-07
DE60037286T2 (de) 2008-10-09
DE60023913T2 (de) 2006-08-10
US20020095283A1 (en) 2002-07-18
EP1204968A1 (en) 2002-05-15
HK1047816A1 (en) 2003-03-07
KR20070051950A (ko) 2007-05-18
ES2256022T3 (es) 2006-07-16
JP2008040509A (ja) 2008-02-21
HK1064196A1 (en) 2005-01-21
BRPI0012537B1 (pt) 2016-06-21
HK1091583A1 (en) 2007-01-19
JP4861271B2 (ja) 2012-01-25
JP2003517157A (ja) 2003-05-20
CN1279510C (zh) 2006-10-11
KR100754580B1 (ko) 2007-09-05
US6678649B2 (en) 2004-01-13
DE60037286D1 (de) 2008-01-10

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Legal Events

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B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B09Y Publication of grant cancelled [chapter 9.1.2 patent gazette]

Free format text: PUBLICACAO DE PARECER DE DEFERIMENTO (9.1) ANULADA POR TER SIDO INDEVIDA

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 21/06/2016, OBSERVADAS AS CONDICOES LEGAIS.