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WO2010008173A3 - 오디오 신호의 상태결정 장치 - Google Patents

오디오 신호의 상태결정 장치 Download PDF

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Publication number
WO2010008173A3
WO2010008173A3 PCT/KR2009/003850 KR2009003850W WO2010008173A3 WO 2010008173 A3 WO2010008173 A3 WO 2010008173A3 KR 2009003850 W KR2009003850 W KR 2009003850W WO 2010008173 A3 WO2010008173 A3 WO 2010008173A3
Authority
WO
WIPO (PCT)
Prior art keywords
audio
signal
module
audio encoder
encoder
Prior art date
Application number
PCT/KR2009/003850
Other languages
English (en)
French (fr)
Other versions
WO2010008173A2 (ko
Inventor
백승권
이태진
김민제
장대영
강경옥
서정일
홍진우
박호종
박영철
Original Assignee
한국전자통신연구원
광운대학교 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.)
Filing date
Publication date
Priority claimed from KR1020090061645A external-priority patent/KR101230183B1/ko
Application filed by 한국전자통신연구원, 광운대학교 산학협력단 filed Critical 한국전자통신연구원
Priority to US13/054,343 priority Critical patent/US20110119067A1/en
Publication of WO2010008173A2 publication Critical patent/WO2010008173A2/ko
Publication of WO2010008173A3 publication Critical patent/WO2010008173A3/ko

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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters

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)

Abstract

선형 예측 부호화(LPC) 기반(103) 혹은 코드 여기 선형 예측(CELP) 기반의 음성 또는 오디오 부호화기와 변환 기반(104)의오디오 부호화기를 입력 신호의 특징에 따라 적절하게 선택할 수 있는 모듈(100)은 기존 LPC기반의 부호화기(103)와 오디오 부호화기 사이에서 성능 장벽을 극복하기 위한 다리역할을 하는 모듈(100)이다. 또한, 입력 오디오 신호의 종류와 상관없이 일관된 오디오 품질을 제공하는 통합 오디오 부호화기가 상기 모듈을 근거하여 설계 가능하다.
PCT/KR2009/003850 2008-07-14 2009-07-14 오디오 신호의 상태결정 장치 WO2010008173A2 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/054,343 US20110119067A1 (en) 2008-07-14 2009-07-14 Apparatus for signal state decision of audio signal

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20080068368 2008-07-14
KR10-2008-0068368 2008-07-14
KR1020090061645A KR101230183B1 (ko) 2008-07-14 2009-07-07 오디오 신호의 상태결정 장치
KR10-2009-0061645 2009-07-07

Publications (2)

Publication Number Publication Date
WO2010008173A2 WO2010008173A2 (ko) 2010-01-21
WO2010008173A3 true WO2010008173A3 (ko) 2010-02-25

Family

ID=41550825

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/003850 WO2010008173A2 (ko) 2008-07-14 2009-07-14 오디오 신호의 상태결정 장치

Country Status (1)

Country Link
WO (1) WO2010008173A2 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG11201607971TA (en) * 2014-02-24 2016-11-29 Samsung Electronics Co Ltd Signal classifying method and device, and audio encoding method and device using same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890108A (en) * 1995-09-13 1999-03-30 Voxware, Inc. Low bit-rate speech coding system and method using voicing probability determination
JP2003316398A (ja) * 2002-04-25 2003-11-07 Nippon Telegr & Teleph Corp <Ntt> 音響信号符号化方法、符号化器及びそのプログラム
WO2008045846A1 (en) * 2006-10-10 2008-04-17 Qualcomm Incorporated Method and apparatus for encoding and decoding audio signals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890108A (en) * 1995-09-13 1999-03-30 Voxware, Inc. Low bit-rate speech coding system and method using voicing probability determination
JP2003316398A (ja) * 2002-04-25 2003-11-07 Nippon Telegr & Teleph Corp <Ntt> 音響信号符号化方法、符号化器及びそのプログラム
WO2008045846A1 (en) * 2006-10-10 2008-04-17 Qualcomm Incorporated Method and apparatus for encoding and decoding audio signals

Also Published As

Publication number Publication date
WO2010008173A2 (ko) 2010-01-21

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