[go: up one dir, main page]

WO2009038170A1 - 音声処理装置、音声処理方法、プログラム及び音楽・メロディ配信システム - Google Patents

音声処理装置、音声処理方法、プログラム及び音楽・メロディ配信システム Download PDF

Info

Publication number
WO2009038170A1
WO2009038170A1 PCT/JP2008/066972 JP2008066972W WO2009038170A1 WO 2009038170 A1 WO2009038170 A1 WO 2009038170A1 JP 2008066972 W JP2008066972 W JP 2008066972W WO 2009038170 A1 WO2009038170 A1 WO 2009038170A1
Authority
WO
WIPO (PCT)
Prior art keywords
audio processing
audio
processing device
program
distribution system
Prior art date
Application number
PCT/JP2008/066972
Other languages
English (en)
French (fr)
Inventor
Kazunori Ozawa
Toshiyuki Nomura
Hironori Ito
Original Assignee
Nec Corporation
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 Nec Corporation filed Critical Nec Corporation
Priority to JP2009533197A priority Critical patent/JPWO2009038170A1/ja
Publication of WO2009038170A1 publication Critical patent/WO2009038170A1/ja

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
    • G10L19/02—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)

Abstract

　高効率の音声符号化方式で携帯端末に対し、音楽やメロディの配信を行う際の音質の劣化を軽減する。音声処理装置は、圧縮符号化された入力ビットストリームを復号し出力する音声復号部１１０と、前記出力信号の信号成分のうち、聴覚マスキング効果により聴覚的に不要となる信号成分を抑圧して出力する聴覚マスキング整形処理部１２０と、前記聴覚マスキング整形処理部の出力信号を音声圧縮符号化してビットストリームを出力する音声符号化処理を実行する音声符号化処理部１３０と、を備える（図１）。
PCT/JP2008/066972 2007-09-21 2008-09-19 音声処理装置、音声処理方法、プログラム及び音楽・メロディ配信システム WO2009038170A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009533197A JPWO2009038170A1 (ja) 2007-09-21 2008-09-19 音声処理装置、音声処理方法、プログラム及び音楽・メロディ配信システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007245545 2007-09-21
JP2007-245545 2007-09-21

Publications (1)

Publication Number Publication Date
WO2009038170A1 true WO2009038170A1 (ja) 2009-03-26

Family

ID=40467979

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/066972 WO2009038170A1 (ja) 2007-09-21 2008-09-19 音声処理装置、音声処理方法、プログラム及び音楽・メロディ配信システム

Country Status (2)

Country Link
JP (1) JPWO2009038170A1 (ja)
WO (1) WO2009038170A1 (ja)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06332496A (ja) * 1993-05-21 1994-12-02 Mitsubishi Electric Corp 音声符号化装置、音声復号化装置、音声後処理装置及びこれらの方法
JPH07221650A (ja) * 1994-02-05 1995-08-18 Sony Corp 情報符号化方法及び装置並びに情報復号化方法及び装置
WO1996005592A1 (en) * 1994-08-10 1996-02-22 Qualcomm Incorporated Method and apparatus for selecting an encoding rate in a variable rate vocoder
JPH0950298A (ja) * 1995-08-07 1997-02-18 Mitsubishi Electric Corp 音声符号化装置及び音声復号化装置
JP2000315099A (ja) * 1999-03-02 2000-11-14 Emudasu Systems:Kk データ圧縮装置及び音データ処理方法
WO2004090869A1 (ja) * 2003-04-08 2004-10-21 Nec Corporation 符号変換方法及び装置
WO2005112003A1 (en) * 2004-05-17 2005-11-24 Nokia Corporation Audio encoding with different coding frame lengths

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06332496A (ja) * 1993-05-21 1994-12-02 Mitsubishi Electric Corp 音声符号化装置、音声復号化装置、音声後処理装置及びこれらの方法
JPH07221650A (ja) * 1994-02-05 1995-08-18 Sony Corp 情報符号化方法及び装置並びに情報復号化方法及び装置
WO1996005592A1 (en) * 1994-08-10 1996-02-22 Qualcomm Incorporated Method and apparatus for selecting an encoding rate in a variable rate vocoder
JPH0950298A (ja) * 1995-08-07 1997-02-18 Mitsubishi Electric Corp 音声符号化装置及び音声復号化装置
JP2000315099A (ja) * 1999-03-02 2000-11-14 Emudasu Systems:Kk データ圧縮装置及び音データ処理方法
WO2004090869A1 (ja) * 2003-04-08 2004-10-21 Nec Corporation 符号変換方法及び装置
WO2005112003A1 (en) * 2004-05-17 2005-11-24 Nokia Corporation Audio encoding with different coding frame lengths

Also Published As

Publication number Publication date
JPWO2009038170A1 (ja) 2011-01-06

Similar Documents

Publication Publication Date Title
PL1866912T3 (pl) Kodowanie wielokanałowego sygnału audio
PL1854334T3 (pl) Urządzenie i sposób do generowania zakodowanego sygnału stereo fragmentu dźwiękowego lub strumienia danych audio
ES2405311T3 (es) Aparato para restaurar una señal de audio multicanal usando un decodificador de MPEG surround
WO2008016935A3 (en) Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
TW200738040A (en) Method and apparatus for processing a audio signal
TW200737738A (en) Apparatus and method for encoding and decoding signal
TW200628001A (en) Individual channel shaping for BCC schemes and the like
DE602005010894D1 (de) Diffusschall-einhüllenden-formgebung für binaurale hinweis-codierungsverfahren und dergleichen
EP1735775B8 (en) Method for representing multi-channel audio signals
CA2645911A1 (en) Method for encoding and decoding object-based audio signal and apparatus thereof
JP2009500658A5 (ja)
MY154100A (en) Method and apparatus to encode and decode an audio/speech signal
EP4283616A3 (en) Computer program product for encoding a signal
WO2009110738A3 (ko) 오디오 신호 처리 방법 및 장치
MY163042A (en) Temporal envelope shaping for spatial audio coding using frequency domain wiener filtering
TW200708108A (en) Decoder architecture systems, apparatus and methods
WO2008126382A1 (ja) 符号化装置および符号化方法
ATE511691T1 (de) Auf virtuellen quellenpositionsinformationen basierte quantisierung und dequantisierung von kanalniveauunterschieden
WO2008132850A1 (ja) ステレオ音声符号化装置、ステレオ音声復号装置、およびこれらの方法
US9824694B2 (en) Data carriage in encoded and pre-encoded audio bitstreams
WO2009038170A1 (ja) 音声処理装置、音声処理方法、プログラム及び音楽・メロディ配信システム
TW200737745A (en) Decoding device and related method
WO2009038158A1 (ja) 音声復号装置、音声復号方法、プログラム及び携帯端末
WO2009038115A1 (ja) 音声符号化装置、音声符号化方法及びプログラム
TW200625954A (en) Video playback apparatus and video playback method

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08832115

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2009533197

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08832115

Country of ref document: EP

Kind code of ref document: A1