KR20070028432A - 오디오 인코딩 방법 - Google Patents

오디오 인코딩 방법 Download PDF

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Publication number
KR20070028432A
KR20070028432A KR1020067026751A KR20067026751A KR20070028432A KR 20070028432 A KR20070028432 A KR 20070028432A KR 1020067026751 A KR1020067026751 A KR 1020067026751A KR 20067026751 A KR20067026751 A KR 20067026751A KR 20070028432 A KR20070028432 A KR 20070028432A
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KR
South Korea
Prior art keywords
sub
encoder
input signal
signal
encoders
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
KR1020067026751A
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English (en)
Korean (ko)
Inventor
발레리 에스. 코트
Original Assignee
코닌클리케 필립스 일렉트로닉스 엔.브이.
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Filing date
Publication date
Application filed by 코닌클리케 필립스 일렉트로닉스 엔.브이. filed Critical 코닌클리케 필립스 일렉트로닉스 엔.브이.
Publication of KR20070028432A publication Critical patent/KR20070028432A/ko
Abandoned legal-status Critical Current

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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
    • 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
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
KR1020067026751A 2004-06-21 2005-06-14 오디오 인코딩 방법 Abandoned KR20070028432A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04102819.2 2004-06-21
EP04102819 2004-06-21

Publications (1)

Publication Number Publication Date
KR20070028432A true KR20070028432A (ko) 2007-03-12

Family

ID=34970750

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020067026751A Abandoned KR20070028432A (ko) 2004-06-21 2005-06-14 오디오 인코딩 방법

Country Status (6)

Country Link
US (1) US8065139B2 (https=)
EP (1) EP1761917A1 (https=)
JP (1) JP2008503766A (https=)
KR (1) KR20070028432A (https=)
CN (1) CN1973321A (https=)
WO (1) WO2006000951A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080073925A (ko) * 2007-02-07 2008-08-12 삼성전자주식회사 파라메트릭 부호화된 오디오 신호를 복호화하는 방법 및장치
US9111525B1 (en) * 2008-02-14 2015-08-18 Foundation for Research and Technology—Hellas (FORTH) Institute of Computer Science (ICS) Apparatuses, methods and systems for audio processing and transmission
US8190440B2 (en) * 2008-02-29 2012-05-29 Broadcom Corporation Sub-band codec with native voice activity detection
US10395664B2 (en) 2016-01-26 2019-08-27 Dolby Laboratories Licensing Corporation Adaptive Quantization

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667340A (en) 1983-04-13 1987-05-19 Texas Instruments Incorporated Voice messaging system with pitch-congruent baseband coding
US5127054A (en) 1988-04-29 1992-06-30 Motorola, Inc. Speech quality improvement for voice coders and synthesizers
JP3131542B2 (ja) * 1993-11-25 2001-02-05 シャープ株式会社 符号化復号化装置
US5701389A (en) * 1995-01-31 1997-12-23 Lucent Technologies, Inc. Window switching based on interblock and intrablock frequency band energy
US5886276A (en) * 1997-01-16 1999-03-23 The Board Of Trustees Of The Leland Stanford Junior University System and method for multiresolution scalable audio signal encoding
SE512719C2 (sv) 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
US6266644B1 (en) * 1998-09-26 2001-07-24 Liquid Audio, Inc. Audio encoding apparatus and methods
US7315815B1 (en) * 1999-09-22 2008-01-01 Microsoft Corporation LPC-harmonic vocoder with superframe structure
US6978236B1 (en) * 1999-10-01 2005-12-20 Coding Technologies Ab Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
JP3894722B2 (ja) * 2000-10-27 2007-03-22 松下電器産業株式会社 ステレオオーディオ信号高能率符号化装置
WO2002037688A1 (en) * 2000-11-03 2002-05-10 Koninklijke Philips Electronics N.V. Parametric coding of audio signals
BR0204834A (pt) * 2001-04-18 2003-06-10 Koninkl Philips Electronics Nv Métodos de codificação de um sinal de áudio e de decodificação de uma corrente de áudio, codificador de áudio, aparelho de reprodução de áudio, sistema de áudio, corrente de áudio, e, meio de armazenamento
CN1237507C (zh) * 2001-06-08 2006-01-18 皇家菲利浦电子有限公司 音频信号的编辑

Also Published As

Publication number Publication date
EP1761917A1 (en) 2007-03-14
WO2006000951A1 (en) 2006-01-05
JP2008503766A (ja) 2008-02-07
US20080275696A1 (en) 2008-11-06
CN1973321A (zh) 2007-05-30
US8065139B2 (en) 2011-11-22

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