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.
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
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 (enExample)
EP (1) EP1761917A1 (enExample)
JP (1) JP2008503766A (enExample)
KR (1) KR20070028432A (enExample)
CN (1) CN1973321A (enExample)
WO (1) WO2006000951A1 (enExample)

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
CN108496221B (zh) 2016-01-26 2020-01-21 杜比实验室特许公司 自适应量化

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
KR20020070374A (ko) * 2000-11-03 2002-09-06 코닌클리케 필립스 일렉트로닉스 엔.브이. 오디오 신호들의 매개변수적 코딩
JP2004519741A (ja) * 2001-04-18 2004-07-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 音声の符号化
ATE305164T1 (de) * 2001-06-08 2005-10-15 Koninkl Philips Electronics Nv Editieren von audiosignalen

Also Published As

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

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Patent event date: 20061219

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Patent event date: 20120326

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