WO2011071335A3 - 음성 신호 부호화 방법 및 장치 - Google Patents

음성 신호 부호화 방법 및 장치 Download PDF

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Publication number
WO2011071335A3
WO2011071335A3 PCT/KR2010/008848 KR2010008848W WO2011071335A3 WO 2011071335 A3 WO2011071335 A3 WO 2011071335A3 KR 2010008848 W KR2010008848 W KR 2010008848W WO 2011071335 A3 WO2011071335 A3 WO 2011071335A3
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WO
WIPO (PCT)
Prior art keywords
current frame
linear prediction
quantized spectrum
acquired
encoding
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Application number
PCT/KR2010/008848
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English (en)
French (fr)
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WO2011071335A2 (ko
Inventor
전혜정
김대환
정규혁
이민기
강홍구
이병석
김락용
Original Assignee
엘지전자 주식회사
연세대학교 산학협력단
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.)
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Application filed by 엘지전자 주식회사, 연세대학교 산학협력단 filed Critical 엘지전자 주식회사
Priority to CN201080056249.4A priority Critical patent/CN102656629B/zh
Priority to EP10836230.2A priority patent/EP2511904A4/en
Priority to KR1020127017163A priority patent/KR101789632B1/ko
Priority to US13/514,613 priority patent/US9076442B2/en
Publication of WO2011071335A2 publication Critical patent/WO2011071335A2/ko
Publication of WO2011071335A3 publication Critical patent/WO2011071335A3/ko

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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
    • G10L19/04—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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07—Line spectrum pair [LSP] vocoders
    • 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
    • G10L19/04—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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L19/04—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
    • 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
    • G10L19/04—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
    • 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
    • G10L19/04—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
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • 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
    • G10L19/04—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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • G10L19/107—Sparse pulse excitation, e.g. by using algebraic codebook
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0007—Codebook element generation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0007—Codebook element generation
    • G10L2019/001—Interpolation of codebook vectors
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0016—Codebook for LPC parameters

Abstract

본 발명에 따르면, 선형 예측을 이용하여 입력 신호으로부터 현재 프레임의 선형 예측 필터 계수를 획득하고, 제 1 베스트 정보에 기초하여 상기 현재 프레임의 선형 예측 필터 계수에 대응하는 현재 프레임의 양자화된 스펙트럼 후보 벡터를 획득하며, 상기 현재 프레임의 양자화된 스펙트럼 후보 벡터와 이전 프레임의 양자화된 스펙트럼 벡터를 보간하는 것을 특징으로 한다. 이처럼 기존의 단계별 최적화 기법에 비해 양자화 오차를 최소화하는 최적의 파라미터를 찾을 수 있다.
PCT/KR2010/008848 2009-12-10 2010-12-10 음성 신호 부호화 방법 및 장치 WO2011071335A2 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201080056249.4A CN102656629B (zh) 2009-12-10 2010-12-10 编码语音信号的方法和设备
EP10836230.2A EP2511904A4 (en) 2009-12-10 2010-12-10 METHOD AND APPARATUS FOR ENCODING A SPEECH SIGNAL
KR1020127017163A KR101789632B1 (ko) 2009-12-10 2010-12-10 음성 신호 부호화 방법 및 장치
US13/514,613 US9076442B2 (en) 2009-12-10 2010-12-10 Method and apparatus for encoding a speech signal

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US28518409P 2009-12-10 2009-12-10
US61/285,184 2009-12-10
US29516510P 2010-01-15 2010-01-15
US61/295,165 2010-01-15
US32188310P 2010-04-08 2010-04-08
US61/321,883 2010-04-08
US34822510P 2010-05-25 2010-05-25
US61/348,225 2010-05-25

Publications (2)

Publication Number Publication Date
WO2011071335A2 WO2011071335A2 (ko) 2011-06-16
WO2011071335A3 true WO2011071335A3 (ko) 2011-11-03

Family

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PCT/KR2010/008848 WO2011071335A2 (ko) 2009-12-10 2010-12-10 음성 신호 부호화 방법 및 장치

Country Status (5)

Country Link
US (1) US9076442B2 (ko)
EP (1) EP2511904A4 (ko)
KR (1) KR101789632B1 (ko)
CN (1) CN102656629B (ko)
WO (1) WO2011071335A2 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9728200B2 (en) * 2013-01-29 2017-08-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for adaptive formant sharpening in linear prediction coding
PL3594946T3 (pl) * 2014-05-01 2021-03-08 Nippon Telegraph And Telephone Corporation Dekodowanie sygnału dźwiękowego

Citations (3)

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KR960015861B1 (ko) * 1993-12-18 1996-11-22 휴우즈 에어크라프트 캄파니 선 스펙트럼 주파수 벡터의 양자화 방법 및 양자화기
KR20010084468A (ko) * 2000-02-25 2001-09-06 대표이사 서승모 음성 부호화기의 ｌｓｐ 양자화기를 위한 고속 탐색 방법
KR20090117877A (ko) * 2007-03-02 2009-11-13 파나소닉 주식회사 부호화 장치 및 부호화 방법

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US6108624A (en) 1997-09-10 2000-08-22 Samsung Electronics Co., Ltd. Method for improving performance of a voice coder
US7072832B1 (en) * 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
US6574593B1 (en) * 1999-09-22 2003-06-03 Conexant Systems, Inc. Codebook tables for encoding and decoding
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KR960015861B1 (ko) * 1993-12-18 1996-11-22 휴우즈 에어크라프트 캄파니 선 스펙트럼 주파수 벡터의 양자화 방법 및 양자화기
KR20010084468A (ko) * 2000-02-25 2001-09-06 대표이사 서승모 음성 부호화기의 ｌｓｐ 양자화기를 위한 고속 탐색 방법
KR20090117877A (ko) * 2007-03-02 2009-11-13 파나소닉 주식회사 부호화 장치 및 부호화 방법

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Title
See also references of EP2511904A4 *

Also Published As

Publication number Publication date
EP2511904A4 (en) 2013-08-21
KR101789632B1 (ko) 2017-10-25
CN102656629A (zh) 2012-09-05
KR20120109539A (ko) 2012-10-08
EP2511904A2 (en) 2012-10-17
WO2011071335A2 (ko) 2011-06-16
CN102656629B (zh) 2014-11-26
US20120245930A1 (en) 2012-09-27
US9076442B2 (en) 2015-07-07

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