DK0746913T3 - Fremgangsmåde til kaskadekodning og -dekodning af audiodata - Google Patents

Fremgangsmåde til kaskadekodning og -dekodning af audiodata

Info

Publication number
DK0746913T3
DK0746913T3 DK94930208.7T DK94930208T DK0746913T3 DK 0746913 T3 DK0746913 T3 DK 0746913T3 DK 94930208 T DK94930208 T DK 94930208T DK 0746913 T3 DK0746913 T3 DK 0746913T3
Authority
DK
Denmark
Prior art keywords
pct
data
data block
codec
spectral components
Prior art date
Application number
DK94930208.7T
Other languages
English (en)
Inventor
Michael Keyhl
Karl-Heinz Brandenburg
Heinz Gerhaeuser
Harald Popp
Ernst Eberlein
Christian Schmidmer
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Application granted granted Critical
Publication of DK0746913T3 publication Critical patent/DK0746913T3/da

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

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)
DK94930208.7T 1994-02-22 1994-10-21 Fremgangsmåde til kaskadekodning og -dekodning af audiodata DK0746913T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4405659A DE4405659C1 (de) 1994-02-22 1994-02-22 Verfahren zum kaskadierten Codieren und Decodieren von Audiodaten

Publications (1)

Publication Number Publication Date
DK0746913T3 true DK0746913T3 (da) 1998-02-09

Family

ID=6510887

Family Applications (1)

Application Number Title Priority Date Filing Date
DK94930208.7T DK0746913T3 (da) 1994-02-22 1994-10-21 Fremgangsmåde til kaskadekodning og -dekodning af audiodata

Country Status (9)

Country Link
US (1) US6101475A (da)
EP (1) EP0746913B1 (da)
JP (1) JP2843443B2 (da)
AT (1) ATE162027T1 (da)
AU (1) AU680055B2 (da)
CA (1) CA2183860C (da)
DE (2) DE4405659C1 (da)
DK (1) DK0746913T3 (da)
WO (1) WO1995022858A1 (da)

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Publication number Priority date Publication date Assignee Title
DE19638546A1 (de) * 1996-09-20 1998-03-26 Thomson Brandt Gmbh Verfahren und Schaltungsanordnung zur Kodierung oder Dekodierung von Audiosignalen
DE19706268A1 (de) * 1997-02-18 1998-08-20 Christian Wenz Dateiformatspezifisches Packverfahren
TW429700B (en) 1997-02-26 2001-04-11 Sony Corp Information encoding method and apparatus, information decoding method and apparatus and information recording medium
GB2340351B (en) * 1998-07-29 2004-06-09 British Broadcasting Corp Data transmission
GB2344728B (en) 1998-09-23 2004-03-17 British Broadcasting Corp Audio compression
EP1030290A3 (de) * 1999-02-17 2002-12-11 Frank Kurth Verfahren zum unbemerkten übertragen und/oder Speichern von Zusatzinformationen innerhalb eines Signals, insbesondere Audiosignals
DE10000934C1 (de) * 2000-01-12 2001-09-27 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Bestimmen eines Codierungs-Blockrasters eines decodierten Signals
EP1318611A1 (en) * 2001-12-06 2003-06-11 Deutsche Thomson-Brandt Gmbh Method for retrieving a sensitive criterion for quantized spectra detection
JP2003316392A (ja) * 2002-04-22 2003-11-07 Mitsubishi Electric Corp オーディオ信号の復号化及び符号化装置、復号化装置並びに符号化装置
AU2003251573A1 (en) * 2002-06-21 2004-01-06 Thomson Licensing S.A. Broadcast router having a multirate serial digital audio data stream encoder
DE602004004376T2 (de) * 2004-05-28 2007-05-24 Alcatel Anpassungsverfahren für ein Mehrraten-Sprach-Codec
CN100428632C (zh) * 2004-11-04 2008-10-22 华为技术有限公司 一种组合编码器和组合解码器
AU2009220341B2 (en) * 2008-03-04 2011-09-22 Lg Electronics Inc. Method and apparatus for processing an audio signal

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FR2441971A1 (fr) * 1978-11-17 1980-06-13 Trt Telecom Radio Electr Systeme de transmission utilisant la modulation differentielle par codage d'impulsions
US4868867A (en) * 1987-04-06 1989-09-19 Voicecraft Inc. Vector excitation speech or audio coder for transmission or storage
US4924480A (en) * 1988-03-11 1990-05-08 American Telephone And Telegraph Company Codecs with suppression of multiple encoding/decodings across a connection
US5231492A (en) * 1989-03-16 1993-07-27 Fujitsu Limited Video and audio multiplex transmission system
NL9000338A (nl) * 1989-06-02 1991-01-02 Koninkl Philips Electronics Nv Digitaal transmissiesysteem, zender en ontvanger te gebruiken in het transmissiesysteem en registratiedrager verkregen met de zender in de vorm van een optekeninrichting.
JP2877375B2 (ja) * 1989-09-14 1999-03-31 株式会社東芝 可変レートコーデックを用いたセル転送方式
US5115240A (en) * 1989-09-26 1992-05-19 Sony Corporation Method and apparatus for encoding voice signals divided into a plurality of frequency bands
JP2837714B2 (ja) * 1989-12-01 1998-12-16 日本電信電話株式会社 可変長符号化復号化方式
JP2995485B2 (ja) * 1990-04-26 1999-12-27 キヤノン株式会社 符号化装置
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
GB2249928B (en) * 1990-11-13 1994-10-26 Sony Corp Identification signals in digital audio signals
ZA921988B (en) * 1991-03-29 1993-02-24 Sony Corp High efficiency digital data encoding and decoding apparatus
JP3141450B2 (ja) * 1991-09-30 2001-03-05 ソニー株式会社 オーディオ信号処理方法
JP3144009B2 (ja) * 1991-12-24 2001-03-07 日本電気株式会社 音声符号復号化装置
JP3104400B2 (ja) * 1992-04-27 2000-10-30 ソニー株式会社 オーディオ信号符号化装置及び方法
KR0166716B1 (ko) * 1992-06-18 1999-03-20 강진구 블럭 dpcm을 이용한 부호화/복호화방법 및 장치
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Also Published As

Publication number Publication date
ATE162027T1 (de) 1998-01-15
CA2183860C (en) 2000-04-11
AU680055B2 (en) 1997-07-17
DE4405659C1 (de) 1995-04-06
CA2183860A1 (en) 1995-08-24
JPH09503637A (ja) 1997-04-08
AU7939294A (en) 1995-09-04
DE59404983D1 (de) 1998-02-12
EP0746913A1 (de) 1996-12-11
JP2843443B2 (ja) 1999-01-06
US6101475A (en) 2000-08-08
WO1995022858A1 (de) 1995-08-24
EP0746913B1 (de) 1998-01-07

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