ATE195618T1 - Verfahren und einrichtung zur audiodatenkompression - Google Patents

Verfahren und einrichtung zur audiodatenkompression

Info

Publication number
ATE195618T1
ATE195618T1 AT97200178T AT97200178T ATE195618T1 AT E195618 T1 ATE195618 T1 AT E195618T1 AT 97200178 T AT97200178 T AT 97200178T AT 97200178 T AT97200178 T AT 97200178T AT E195618 T1 ATE195618 T1 AT E195618T1
Authority
AT
Austria
Prior art keywords
band
block
spectral coefficients
word length
quantized
Prior art date
Application number
AT97200178T
Other languages
English (en)
Inventor
Kyoya Tsutsui
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 JP27616891A external-priority patent/JP3200886B2/ja
Priority claimed from JP03276169A external-priority patent/JP3141451B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of ATE195618T1 publication Critical patent/ATE195618T1/de

Links

Classifications

    • 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
    • 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
    • H04B1/667—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 a division in frequency subbands

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
AT97200178T 1991-09-30 1992-09-28 Verfahren und einrichtung zur audiodatenkompression ATE195618T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP27616891A JP3200886B2 (ja) 1991-09-30 1991-09-30 オーディオ信号処理方法
JP03276169A JP3141451B2 (ja) 1991-09-30 1991-09-30 オーディオ信号処理方法

Publications (1)

Publication Number Publication Date
ATE195618T1 true ATE195618T1 (de) 2000-09-15

Family

ID=26551786

Family Applications (2)

Application Number Title Priority Date Filing Date
AT92308815T ATE173366T1 (de) 1991-09-30 1992-09-28 Verfahren und anordnung zur audiodatenkompression
AT97200178T ATE195618T1 (de) 1991-09-30 1992-09-28 Verfahren und einrichtung zur audiodatenkompression

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT92308815T ATE173366T1 (de) 1991-09-30 1992-09-28 Verfahren und anordnung zur audiodatenkompression

Country Status (5)

Country Link
US (2) US5375189A (de)
EP (2) EP0786874B1 (de)
AT (2) ATE173366T1 (de)
AU (1) AU664386B2 (de)
DE (2) DE69227570T2 (de)

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JPH08274646A (ja) * 1995-03-31 1996-10-18 Sony Corp ディジタル信号処理方法及び装置
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JPH1084284A (ja) * 1996-09-06 1998-03-31 Sony Corp 信号再生方法および装置
JP3283200B2 (ja) * 1996-12-19 2002-05-20 ケイディーディーアイ株式会社 符号化音声データの符号化レート変換方法および装置
TW384434B (en) 1997-03-31 2000-03-11 Sony Corp Encoding method, device therefor, decoding method, device therefor and recording medium
JP3282661B2 (ja) * 1997-05-16 2002-05-20 ソニー株式会社 信号処理装置および方法
AUPP273298A0 (en) * 1998-03-31 1998-04-23 Lake Dsp Pty Limited Room impulse response compression
US6353807B1 (en) * 1998-05-15 2002-03-05 Sony Corporation Information coding method and apparatus, code transform method and apparatus, code transform control method and apparatus, information recording method and apparatus, and program providing medium
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JP3963850B2 (ja) * 2003-03-11 2007-08-22 富士通株式会社 音声区間検出装置
JP2006127647A (ja) * 2004-10-29 2006-05-18 Sharp Corp 音声高速再生装置及び方法
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
JP6680029B2 (ja) * 2016-03-24 2020-04-15 ヤマハ株式会社 音響処理方法および音響処理装置
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Also Published As

Publication number Publication date
AU2604992A (en) 1993-04-01
AU664386B2 (en) 1995-11-16
EP0535889B1 (de) 1998-11-11
EP0786874B1 (de) 2000-08-16
DE69227570T2 (de) 1999-04-22
DE69231369D1 (de) 2000-09-21
EP0786874A3 (de) 1997-12-29
HK1013536A1 (en) 1999-08-27
EP0535889A2 (de) 1993-04-07
EP0535889A3 (en) 1994-11-09
ATE173366T1 (de) 1998-11-15
USRE36683E (en) 2000-05-02
DE69231369T2 (de) 2001-03-29
US5375189A (en) 1994-12-20
EP0786874A2 (de) 1997-07-30
DE69227570D1 (de) 1998-12-17

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