WO2011002185A3 - 가중 선형 예측 변환을 이용한 오디오 신호 부호화 및 복호화 장치 및 그 방법 - Google Patents

가중 선형 예측 변환을 이용한 오디오 신호 부호화 및 복호화 장치 및 그 방법 Download PDF

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Publication number
WO2011002185A3
WO2011002185A3 PCT/KR2010/004169 KR2010004169W WO2011002185A3 WO 2011002185 A3 WO2011002185 A3 WO 2011002185A3 KR 2010004169 W KR2010004169 W KR 2010004169W WO 2011002185 A3 WO2011002185 A3 WO 2011002185A3
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WO
WIPO (PCT)
Prior art keywords
audio signal
decoding
encoding
linear predictive
same
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PCT/KR2010/004169
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English (en)
French (fr)
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WO2011002185A2 (ko
Inventor
성호상
오은미
김중회
김미영
Original Assignee
삼성전자주식회사
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Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to EP10794320.1A priority Critical patent/EP2450881A4/en
Priority to CN2010800388727A priority patent/CN102483922A/zh
Priority to JP2012518488A priority patent/JP5894070B2/ja
Priority to US13/381,522 priority patent/US20120173247A1/en
Publication of WO2011002185A2 publication Critical patent/WO2011002185A2/ko
Publication of WO2011002185A3 publication Critical patent/WO2011002185A3/ko

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    • 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
    • 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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding

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)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

가변 비트율(Variable Bit Rate; VBR) 오디오 부호화 및 복호화 장치가 개시된다. 오디오 신호의 특성에 따라서 타겟 비트율을 결정하며, 결정된 타겟 비트율에 따라서 가중 선형 예측 변환 부호화를 수행한다.
PCT/KR2010/004169 2009-06-29 2010-06-28 가중 선형 예측 변환을 이용한 오디오 신호 부호화 및 복호화 장치 및 그 방법 WO2011002185A2 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP10794320.1A EP2450881A4 (en) 2009-06-29 2010-06-28 DEVICE FOR CODING AND DECODING AN AUDIO SIGNAL USING A WEIGHTED LINEAR PROGNOSIS TRANSFORM AND METHOD THEREFOR
CN2010800388727A CN102483922A (zh) 2009-06-29 2010-06-28 使用加权线性预测变换对音频信号进行编码和解码的设备和方法
JP2012518488A JP5894070B2 (ja) 2009-06-29 2010-06-28 オーディオ信号符号化器、オーディオ信号復号化器及びオーディオ信号符号化方法
US13/381,522 US20120173247A1 (en) 2009-06-29 2010-06-28 Apparatus for encoding and decoding an audio signal using a weighted linear predictive transform, and a method for same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0058530 2009-06-29
KR1020090058530A KR20110001130A (ko) 2009-06-29 2009-06-29 가중 선형 예측 변환을 이용한 오디오 신호 부호화 및 복호화 장치 및 그 방법

Publications (2)

Publication Number Publication Date
WO2011002185A2 WO2011002185A2 (ko) 2011-01-06
WO2011002185A3 true WO2011002185A3 (ko) 2011-03-31

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PCT/KR2010/004169 WO2011002185A2 (ko) 2009-06-29 2010-06-28 가중 선형 예측 변환을 이용한 오디오 신호 부호화 및 복호화 장치 및 그 방법

Country Status (6)

Country Link
US (1) US20120173247A1 (ko)
EP (1) EP2450881A4 (ko)
JP (1) JP5894070B2 (ko)
KR (1) KR20110001130A (ko)
CN (1) CN102483922A (ko)
WO (1) WO2011002185A2 (ko)

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CN104916292B (zh) * 2014-03-12 2017-05-24 华为技术有限公司 检测音频信号的方法和装置
FR3025923A1 (fr) * 2014-09-12 2016-03-18 Orange Discrimination et attenuation de pre-echos dans un signal audionumerique
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KR20220066749A (ko) * 2020-11-16 2022-05-24 한국전자통신연구원 잔차 신호의 생성 방법과 그 방법을 수행하는 부호화기 및 복호화기

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Also Published As

Publication number Publication date
WO2011002185A2 (ko) 2011-01-06
JP5894070B2 (ja) 2016-03-23
JP2012532344A (ja) 2012-12-13
US20120173247A1 (en) 2012-07-05
EP2450881A2 (en) 2012-05-09
CN102483922A (zh) 2012-05-30
EP2450881A4 (en) 2016-08-24
KR20110001130A (ko) 2011-01-06

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