WO2009110738A3 - 오디오 신호 처리 방법 및 장치 - Google Patents

오디오 신호 처리 방법 및 장치 Download PDF

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Publication number
WO2009110738A3
WO2009110738A3 PCT/KR2009/001050 KR2009001050W WO2009110738A3 WO 2009110738 A3 WO2009110738 A3 WO 2009110738A3 KR 2009001050 W KR2009001050 W KR 2009001050W WO 2009110738 A3 WO2009110738 A3 WO 2009110738A3
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WIPO (PCT)
Prior art keywords
signal
audio signal
audio
type
information
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PCT/KR2009/001050
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English (en)
French (fr)
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WO2009110738A2 (ko
Inventor
오현오
송정욱
이창헌
정양원
강홍구
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엘지전자(주)
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Application filed by 엘지전자(주) filed Critical 엘지전자(주)
Priority to KR1020107019538A priority Critical patent/KR101221919B1/ko
Priority to MX2010009571A priority patent/MX2010009571A/es
Priority to AU2009220321A priority patent/AU2009220321B2/en
Priority to BRPI0910285-0A priority patent/BRPI0910285B1/pt
Priority to EP09716372.9A priority patent/EP2259253B1/en
Priority to CN2009801075430A priority patent/CN101965612B/zh
Priority to CA2716817A priority patent/CA2716817C/en
Priority to JP2010549570A priority patent/JP5266341B2/ja
Priority to US12/497,375 priority patent/US7991621B2/en
Publication of WO2009110738A2 publication Critical patent/WO2009110738A2/ko
Publication of WO2009110738A3 publication Critical patent/WO2009110738A3/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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G11B2020/00014—Time or data compression or expansion the compressed signal being an audio signal

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  • 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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

본 발명은 오디오 신호를 보다 높은 효율로 압축 및 복원할 수 있는 인코딩 신호 처리 방법 및 장치를 제공하는 것을 목적으로 한다. 이를 위한 본 발명의 오디오 신호 처리 방법은, 제1 타입정보를 이용하여 오디오 신호의 타입이 음악신호 인지 여부를 식별하는 단계; 상기 오디오 신호의 타입이 음악신호가 아닌 경우, 제 2 타입정보를 이용하여 상기 오디오 신호의 타입이 음성신호 인지, 혼합신호 인지 여부를 식별하는 단계; 및 상기 오디오 신호의 타입이 음악신호, 음성신호 및 혼합신호 중 어느 하나로 판별되면, 코딩 식별정보를 이용하여 프레임별 적용되는 코딩방식에 따라 오디오 신호를 복원하는 단계를 포함하되, 상기 오디오 신호의 타입이 음악신호인 경우 상기 제1 타입정보만이 수신되고, 상기 오디오 신호의 타입이 음성신호 또는 혼합신호인 경우 상기 제1 타입정보 및 제2 타입정보 모두가 수신되는 것을 특징으로 한다. 이를 통하여, 보다 높은 효율로 다양한 종류의 오디오 신호를 부호 및 복호할 수 있게 된다.
PCT/KR2009/001050 2008-03-03 2009-03-03 오디오 신호 처리 방법 및 장치 WO2009110738A2 (ko)

Priority Applications (9)

Application Number Priority Date Filing Date Title
KR1020107019538A KR101221919B1 (ko) 2008-03-03 2009-03-03 오디오 신호 처리 방법 및 장치
MX2010009571A MX2010009571A (es) 2008-03-03 2009-03-03 Metodo y aparato para el procesamiento de señales de audio.
AU2009220321A AU2009220321B2 (en) 2008-03-03 2009-03-03 Method and apparatus for processing audio signal
BRPI0910285-0A BRPI0910285B1 (pt) 2008-03-03 2009-03-03 Métodos e aparelhos para processamento de sinal de áudio.
EP09716372.9A EP2259253B1 (en) 2008-03-03 2009-03-03 Method and apparatus for processing audio signal
CN2009801075430A CN101965612B (zh) 2008-03-03 2009-03-03 用于处理音频信号的方法和装置
CA2716817A CA2716817C (en) 2008-03-03 2009-03-03 Method and apparatus for processing audio signal
JP2010549570A JP5266341B2 (ja) 2008-03-03 2009-03-03 オーディオ信号処理方法及び装置
US12/497,375 US7991621B2 (en) 2008-03-03 2009-07-02 Method and an apparatus for processing a signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3303208P 2008-03-03 2008-03-03
US61/033,032 2008-03-03

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/497,375 Continuation US7991621B2 (en) 2008-03-03 2009-07-02 Method and an apparatus for processing a signal

Publications (2)

Publication Number Publication Date
WO2009110738A2 WO2009110738A2 (ko) 2009-09-11
WO2009110738A3 true WO2009110738A3 (ko) 2009-10-29

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Country Link
US (1) US7991621B2 (ko)
EP (1) EP2259253B1 (ko)
JP (1) JP5266341B2 (ko)
KR (1) KR101221919B1 (ko)
CN (1) CN101965612B (ko)
AU (1) AU2009220321B2 (ko)
BR (1) BRPI0910285B1 (ko)
CA (1) CA2716817C (ko)
MX (1) MX2010009571A (ko)
RU (1) RU2455709C2 (ko)
WO (1) WO2009110738A2 (ko)

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BRPI0910285B1 (pt) 2020-05-12
KR20100134576A (ko) 2010-12-23
CN101965612B (zh) 2012-08-29
US7991621B2 (en) 2011-08-02
US20100070284A1 (en) 2010-03-18
EP2259253B1 (en) 2017-11-15
JP2011513788A (ja) 2011-04-28
RU2455709C2 (ru) 2012-07-10
WO2009110738A2 (ko) 2009-09-11
CA2716817C (en) 2014-04-22
RU2010140362A (ru) 2012-04-10
JP5266341B2 (ja) 2013-08-21
EP2259253A4 (en) 2013-02-20
BRPI0910285A2 (pt) 2015-09-29
EP2259253A2 (en) 2010-12-08
CA2716817A1 (en) 2009-09-11
AU2009220321A1 (en) 2009-09-11
AU2009220321B2 (en) 2011-09-22
KR101221919B1 (ko) 2013-01-15
MX2010009571A (es) 2011-05-30
CN101965612A (zh) 2011-02-02

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