TW232116B - Method or device and recording media for signal conversion - Google Patents

Method or device and recording media for signal conversion

Info

Publication number
TW232116B
TW232116B TW083103252A TW83103252A TW232116B TW 232116 B TW232116 B TW 232116B TW 083103252 A TW083103252 A TW 083103252A TW 83103252 A TW83103252 A TW 83103252A TW 232116 B TW232116 B TW 232116B
Authority
TW
Taiwan
Prior art keywords
signal conversion
recording media
frequency
audio
timeresolution
Prior art date
Application number
TW083103252A
Other languages
English (en)
Inventor
Kenzo Akakiri
Makoto Akune
Original Assignee
Sony Corp
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 JP8759293A external-priority patent/JP3225680B2/ja
Priority claimed from JP12786793A external-priority patent/JPH06318876A/ja
Priority claimed from JP12291893A external-priority patent/JP3186331B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of TW232116B publication Critical patent/TW232116B/zh

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
TW083103252A 1993-04-14 1994-04-12 Method or device and recording media for signal conversion TW232116B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8759293A JP3225680B2 (ja) 1993-04-14 1993-04-14 信号変換方法及び装置、並びに記録媒体
JP12786793A JPH06318876A (ja) 1993-04-30 1993-04-30 信号変換方法及び装置、並びに記録媒体
JP12291893A JP3186331B2 (ja) 1993-05-25 1993-05-25 信号変換方法又は装置、並びに記録媒体

Publications (1)

Publication Number Publication Date
TW232116B true TW232116B (en) 1994-10-11

Family

ID=27305550

Family Applications (1)

Application Number Title Priority Date Filing Date
TW083103252A TW232116B (en) 1993-04-14 1994-04-12 Method or device and recording media for signal conversion

Country Status (4)

Country Link
US (1) US5737717A (zh)
KR (2) KR100310547B1 (zh)
TW (1) TW232116B (zh)
WO (1) WO1994024666A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW295747B (zh) * 1994-06-13 1997-01-11 Sony Co Ltd
JP3082625B2 (ja) * 1995-07-15 2000-08-28 日本電気株式会社 音声信号処理回路
JP3266819B2 (ja) * 1996-07-30 2002-03-18 株式会社エイ・ティ・アール人間情報通信研究所 周期信号変換方法、音変換方法および信号分析方法
US6304847B1 (en) * 1996-11-20 2001-10-16 Samsung Electronics, Co., Ltd. Method of implementing an inverse modified discrete cosine transform (IMDCT) in a dial-mode audio decoder
US6134518A (en) * 1997-03-04 2000-10-17 International Business Machines Corporation Digital audio signal coding using a CELP coder and a transform coder
US6868377B1 (en) * 1999-11-23 2005-03-15 Creative Technology Ltd. Multiband phase-vocoder for the modification of audio or speech signals
JP2004507141A (ja) * 2000-08-14 2004-03-04 クリアー　オーディオ　リミテッド 音声強調システム
TW516682U (en) * 2002-04-11 2003-01-01 Li-Chuan Huang Improved structure of brainpower development learning machine
KR20080053739A (ko) * 2006-12-11 2008-06-16 삼성전자주식회사 적응적으로 윈도우 크기를 적용하는 부호화 장치 및 방법
CN102332266B (zh) * 2010-07-13 2013-04-24 炬力集成电路设计有限公司 一种音频数据的编码方法及装置
US9093120B2 (en) * 2011-02-10 2015-07-28 Yahoo! Inc. Audio fingerprint extraction by scaling in time and resampling
KR101253136B1 (ko) * 2011-05-31 2013-04-10 전자부품연구원 오디오 ｌｄ 자동제어방법 및 장치

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* Cited by examiner, † Cited by third party
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US5128963A (en) * 1985-01-31 1992-07-07 Sony Corporation 3-mode PCM/DPCM/APCM maximizing dynamic range
JPS62271000A (ja) * 1986-05-20 1987-11-25 株式会社日立国際電気 音声の符号化方法
DE3688980T2 (de) * 1986-10-30 1994-04-21 Ibm Verfahren zur Multigeschwindigkeitskodierung von Signalen und Einrichtung zur Durchführung dieses Verfahrens.
JP2844695B2 (ja) * 1989-07-19 1999-01-06 ソニー株式会社 信号符号化装置
US5115240A (en) * 1989-09-26 1992-05-19 Sony Corporation Method and apparatus for encoding voice signals divided into a plurality of frequency bands
JPH03117919A (ja) * 1989-09-30 1991-05-20 Sony Corp ディジタル信号符号化装置
US5150387A (en) * 1989-12-21 1992-09-22 Kabushiki Kaisha Toshiba Variable rate encoding and communicating apparatus
JP3013373B2 (ja) * 1990-01-31 2000-02-28 ソニー株式会社 ノイズシェーピング回路
US5502789A (en) * 1990-03-07 1996-03-26 Sony Corporation Apparatus for encoding digital data with reduction of perceptible noise
JP2913731B2 (ja) * 1990-03-07 1999-06-28 ソニー株式会社 ディジタルデータの高能率符号化方法
JP2861238B2 (ja) * 1990-04-20 1999-02-24 ソニー株式会社 ディジタル信号符号化方法
JP2751564B2 (ja) * 1990-05-25 1998-05-18 ソニー株式会社 ディジタル信号符号化装置
JP3089476B2 (ja) * 1990-07-13 2000-09-18 ソニー株式会社 オーディオ信号の量子化誤差低減装置
JPH0472909A (ja) * 1990-07-13 1992-03-06 Sony Corp オーディオ信号の量子化誤差低減装置
JP3033150B2 (ja) * 1990-07-13 2000-04-17 ソニー株式会社 オーディオ信号の量子化誤差低減装置
JP3033156B2 (ja) * 1990-08-24 2000-04-17 ソニー株式会社 ディジタル信号符号化装置
DK0531538T3 (da) * 1991-03-29 1998-10-19 Sony Corp Fremgangsmåde til indkodning af digitale signaler
ZA921988B (en) * 1991-03-29 1993-02-24 Sony Corp High efficiency digital data encoding and decoding apparatus
EP0506394A2 (en) * 1991-03-29 1992-09-30 Sony Corporation Coding apparatus for digital signals
JP3134338B2 (ja) * 1991-03-30 2001-02-13 ソニー株式会社 ディジタル音声信号符号化方法
JP3134337B2 (ja) * 1991-03-30 2001-02-13 ソニー株式会社 ディジタル信号符号化方法
GB2257606B (en) * 1991-06-28 1995-01-18 Sony Corp Recording and/or reproducing apparatuses and signal processing methods for compressed data
GB2258372B (en) * 1991-08-02 1995-05-31 Sony Corp Apparatus for and methods of recording and/or reproducing digital data
CA2075156A1 (en) * 1991-08-02 1993-02-03 Kenzo Akagiri Digital encoder with dynamic quantization bit allocation
JP3178026B2 (ja) * 1991-08-23 2001-06-18 ソニー株式会社 ディジタル信号符号化装置及び復号化装置
JP3127600B2 (ja) * 1992-09-11 2001-01-29 ソニー株式会社 ディジタル信号復号化装置及び方法
JP3508146B2 (ja) * 1992-09-11 2004-03-22 ソニー株式会社 ディジタル信号符号化復号化装置、ディジタル信号符号化装置及びディジタル信号復号化装置
JP3185413B2 (ja) * 1992-11-25 2001-07-09 ソニー株式会社 直交変換演算並びに逆直交変換演算方法及びその装置、ディジタル信号符号化及び／又は復号化装置
JP3185415B2 (ja) * 1992-11-26 2001-07-09 ソニー株式会社 圧縮データ再生記録装置及び方法
JPH06180948A (ja) * 1992-12-11 1994-06-28 Sony Corp ディジタル信号処理装置又は方法、及び記録媒体

Also Published As

Publication number Publication date
KR100310547B1 (ko) 2002-08-08
WO1994024666A1 (en) 1994-10-27
KR950702059A (ko) 1995-05-17
US5737717A (en) 1998-04-07

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