JP2000114975A5 - - Google Patents

Download PDF

Info

Publication number
JP2000114975A5
JP2000114975A5 JP1998285624A JP28562498A JP2000114975A5 JP 2000114975 A5 JP2000114975 A5 JP 2000114975A5 JP 1998285624 A JP1998285624 A JP 1998285624A JP 28562498 A JP28562498 A JP 28562498A JP 2000114975 A5 JP2000114975 A5 JP 2000114975A5
Authority
JP
Japan
Prior art keywords
amplitude
time
series signal
signal
frequency component
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.)
Granted
Application number
JP1998285624A
Other languages
English (en)
Japanese (ja)
Other versions
JP2000114975A (ja
JP4193243B2 (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP28562498A priority Critical patent/JP4193243B2/ja
Priority claimed from JP28562498A external-priority patent/JP4193243B2/ja
Priority to US09/412,556 priority patent/US7580893B1/en
Publication of JP2000114975A publication Critical patent/JP2000114975A/ja
Publication of JP2000114975A5 publication Critical patent/JP2000114975A5/ja
Application granted granted Critical
Publication of JP4193243B2 publication Critical patent/JP4193243B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP28562498A 1998-10-07 1998-10-07 音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体 Expired - Fee Related JP4193243B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP28562498A JP4193243B2 (ja) 1998-10-07 1998-10-07 音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体
US09/412,556 US7580893B1 (en) 1998-10-07 1999-10-05 Acoustic signal coding method and apparatus, acoustic signal decoding method and apparatus, and acoustic signal recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28562498A JP4193243B2 (ja) 1998-10-07 1998-10-07 音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体

Publications (3)

Publication Number Publication Date
JP2000114975A JP2000114975A (ja) 2000-04-21
JP2000114975A5 true JP2000114975A5 (https=) 2005-11-10
JP4193243B2 JP4193243B2 (ja) 2008-12-10

Family

ID=17693950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28562498A Expired - Fee Related JP4193243B2 (ja) 1998-10-07 1998-10-07 音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体

Country Status (2)

Country Link
US (1) US7580893B1 (https=)
JP (1) JP4193243B2 (https=)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4508490B2 (ja) * 2000-09-11 2010-07-21 パナソニック株式会社 符号化装置および復号化装置
JP4548444B2 (ja) * 2000-12-14 2010-09-22 ソニー株式会社 符号化装置および方法、復号装置および方法、並びに記録媒体
WO2002103683A1 (en) * 2001-06-15 2002-12-27 Sony Corporation Encoding apparatus and encoding method
JP2003110429A (ja) * 2001-09-28 2003-04-11 Sony Corp 符号化方法及び装置、復号方法及び装置、伝送方法及び装置、並びに記録媒体
DE60202881T2 (de) * 2001-11-29 2006-01-19 Coding Technologies Ab Wiederherstellung von hochfrequenzkomponenten
JP4626261B2 (ja) * 2004-10-21 2011-02-02 カシオ計算機株式会社 音声符号化装置及び音声符号化方法
JP4899359B2 (ja) * 2005-07-11 2012-03-21 ソニー株式会社 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
JP4876574B2 (ja) * 2005-12-26 2012-02-15 ソニー株式会社 信号符号化装置及び方法、信号復号装置及び方法、並びにプログラム及び記録媒体
US8606566B2 (en) * 2007-10-24 2013-12-10 Qnx Software Systems Limited Speech enhancement through partial speech reconstruction
US8326617B2 (en) 2007-10-24 2012-12-04 Qnx Software Systems Limited Speech enhancement with minimum gating
US8015002B2 (en) 2007-10-24 2011-09-06 Qnx Software Systems Co. Dynamic noise reduction using linear model fitting
CN102208188B (zh) 2011-07-13 2013-04-17 华为技术有限公司 音频信号编解码方法和设备

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5095392A (en) * 1988-01-27 1992-03-10 Matsushita Electric Industrial Co., Ltd. Digital signal magnetic recording/reproducing apparatus using multi-level QAM modulation and maximum likelihood decoding
DE3925663A1 (de) * 1989-08-03 1991-02-07 Thomson Brandt Gmbh Digitales signalverarbeitungssystem
US5687281A (en) * 1990-10-23 1997-11-11 Koninklijke Ptt Nederland N.V. Bark amplitude component coder for a sampled analog signal and decoder for the coded signal
US6400996B1 (en) * 1999-02-01 2002-06-04 Steven M. Hoffberg Adaptive pattern recognition based control system and method
JP3123286B2 (ja) * 1993-02-18 2001-01-09 ソニー株式会社 ディジタル信号処理装置又は方法、及び記録媒体
US6681029B1 (en) * 1993-11-18 2004-01-20 Digimarc Corporation Decoding steganographic messages embedded in media signals
US7171016B1 (en) * 1993-11-18 2007-01-30 Digimarc Corporation Method for monitoring internet dissemination of image, video and/or audio files
US5731767A (en) * 1994-02-04 1998-03-24 Sony Corporation Information encoding method and apparatus, information decoding method and apparatus, information recording medium, and information transmission method
TW295747B (https=) * 1994-06-13 1997-01-11 Sony Co Ltd
US5654952A (en) * 1994-10-28 1997-08-05 Sony Corporation Digital signal encoding method and apparatus and recording medium
JPH08190764A (ja) * 1995-01-05 1996-07-23 Sony Corp ディジタル信号処理方法、ディジタル信号処理装置及び記録媒体
JPH08223049A (ja) * 1995-02-14 1996-08-30 Sony Corp 信号符号化方法及び装置、信号復号化方法及び装置、情報記録媒体並びに情報伝送方法
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
JP4326031B2 (ja) * 1997-02-06 2009-09-02 ソニー株式会社 帯域合成フィルタバンク及びフィルタリング方法並びに復号化装置
US6064954A (en) * 1997-04-03 2000-05-16 International Business Machines Corp. Digital audio signal coding
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion

Similar Documents

Publication Publication Date Title
KR101445396B1 (ko) 스펙트럼 도메인에서 적응적으로 스위칭되는 시간적해상도를 이용하여 오디오 신호를 인코딩 및 디코딩하는방법 및 장치
JP2002372996A5 (https=)
CN1272911C (zh) 音频信号解码装置及音频信号编码装置
JP2005533280A5 (https=)
EP0785631A3 (en) Perceptual noise shaping in the time domain via LPC prediction in the frequency domain
KR960702964A (ko) 신호 부호화 방법 및 장치, 신호 전송 방법, 신호 기록매체, 및 신호 복호화 방법 및 장치(Method and device for encoding signal, signal transmitting method, signal recording medium, and method and device for decoding signal)
CA2717584A1 (en) Method and apparatus for processing an audio signal
JP2000114975A5 (https=)
CN1310210C (zh) 使用解码信号的特征适配合成频谱分量的音频编码系统
KR970071713A (ko) 디지탈 데이타 처리 시스템
JP4008244B2 (ja) 符号化装置および復号化装置
WO2002033695A3 (en) Method and apparatus for coding of unvoiced speech
JP2003523535A (ja) 複数のデータ圧縮フォーマット間でのオーディオ信号の変換方法及び装置
WO1995021490A1 (en) Method and device for encoding information and method and device for decoding information
JPH11177434A (ja) 音声符号化復号方式
KR100852482B1 (ko) 추정을 결정하는 방법 및 장치
JP2008107615A (ja) データ圧縮装置
CA2368453A1 (en) Using gain-adaptive quantization and non-uniform symbol lengths for audio coding
KR100952065B1 (ko) 부호화 방법 및 장치, 및 복호 방법 및 장치
JP4193243B2 (ja) 音響信号符号化方法及び装置、音響信号復号化方法及び装置並びに記録媒体
JPH09106299A (ja) 音響信号変換符号化方法および復号化方法
EP1364364A2 (en) Apparatus for coding scaling factors in an audio coder
JP3092653B2 (ja) 広帯域音声符号化装置及び音声復号装置並びに音声符号化復号装置
JP4191503B2 (ja) 音声楽音信号符号化方法、復号化方法、符号化装置、復号化装置、符号化プログラム、および復号化プログラム
JPH09135176A (ja) 情報符号化装置および方法、情報復号化装置および方法、並びに情報記録媒体