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DK89786A - PROCEDURE FOR TRANSMISSING AN AUDIO SIGNAL - Google Patents

PROCEDURE FOR TRANSMISSING AN AUDIO SIGNAL Download PDF

Info

Publication number
DK89786A
DK89786A DK89786A DK89786A DK89786A DK 89786 A DK89786 A DK 89786A DK 89786 A DK89786 A DK 89786A DK 89786 A DK89786 A DK 89786A DK 89786 A DK89786 A DK 89786A
Authority
DK
Denmark
Prior art keywords
transmissing
procedure
audio signal
signal
irrelevant
Prior art date
Application number
DK89786A
Other languages
Danish (da)
Other versions
DK89786D0 (en
DK166933B1 (en
Inventor
Detlef Krahe
Original Assignee
Telefunken Fernseh & Rundfunk
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 Telefunken Fernseh & Rundfunk filed Critical Telefunken Fernseh & Rundfunk
Publication of DK89786D0 publication Critical patent/DK89786D0/en
Publication of DK89786A publication Critical patent/DK89786A/en
Application granted granted Critical
Publication of DK166933B1 publication Critical patent/DK166933B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • 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

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Telephone Function (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Transmitters (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Stereophonic System (AREA)

Abstract

According to the invention, the signal is converted into a signal representing the short-time spectrum (Figure 4) before being transmitted. Components of the signal which are irrelevant to the listener receive less weighting or are suppressed. As a result, the average decision content can be lowered to about 2.5. <IMAGE>
DK089786A 1985-02-27 1986-02-27 PROCEDURE FOR TRANSMISSING AN AUDIO SIGNAL DK166933B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853506912 DE3506912A1 (en) 1985-02-27 1985-02-27 METHOD FOR TRANSMITTING AN AUDIO SIGNAL
DE3506912 1985-02-27

Publications (3)

Publication Number Publication Date
DK89786D0 DK89786D0 (en) 1986-02-27
DK89786A true DK89786A (en) 1986-08-28
DK166933B1 DK166933B1 (en) 1993-08-02

Family

ID=6263711

Family Applications (1)

Application Number Title Priority Date Filing Date
DK089786A DK166933B1 (en) 1985-02-27 1986-02-27 PROCEDURE FOR TRANSMISSING AN AUDIO SIGNAL

Country Status (9)

Country Link
EP (1) EP0193143B1 (en)
JP (1) JPS61201526A (en)
KR (1) KR910001428B1 (en)
AT (1) ATE75890T1 (en)
DE (2) DE3506912A1 (en)
DK (1) DK166933B1 (en)
ES (1) ES8707045A1 (en)
HK (1) HK42996A (en)
NO (1) NO174868C (en)

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DE3610398A1 (en) * 1986-03-27 1987-10-01 Thomson Brandt Gmbh DIGITAL SIGNAL TRANSFER SYSTEM
DE3639753A1 (en) * 1986-11-21 1988-06-01 Inst Rundfunktechnik Gmbh METHOD FOR TRANSMITTING DIGITALIZED SOUND SIGNALS
DE3642982A1 (en) * 1986-12-17 1988-06-30 Thomson Brandt Gmbh TRANSMISSION SYSTEM
DE3703143A1 (en) * 1987-02-03 1988-08-11 Thomson Brandt Gmbh METHOD FOR TRANSMITTING AN AUDIO SIGNAL
DE3721478A1 (en) * 1987-06-30 1989-01-12 Thomson Brandt Gmbh METHOD FOR TRANSMITTING AND / OR RECORDING AND PLAYING BACK DIGITALIZED AUDIO SIGNALS
ES2030814T3 (en) * 1987-09-30 1992-11-16 Deutsche Thomson-Brandt Gmbh PROCEDURE TO TRANSMIT AN AUDIO SIGNAL.
IL89672A (en) * 1988-04-29 1994-04-12 Motorola Inc Spectrally efficient method for communicating an information signal
DE3817864A1 (en) * 1988-05-26 1989-12-07 Telefunken Fernseh & Rundfunk Method for the transmission of an audio signal
JP3171840B2 (en) * 1988-05-26 2001-06-04 トムソン コンシューマー エレクトロニクス セイルズ ゲゼルシャフト ミット ベシュレンクテル ハフツング Audio signal transmission method and decoding device
USRE40280E1 (en) 1988-12-30 2008-04-29 Lucent Technologies Inc. Rate loop processor for perceptual encoder/decoder
US5222189A (en) * 1989-01-27 1993-06-22 Dolby Laboratories Licensing Corporation Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio
US5142656A (en) * 1989-01-27 1992-08-25 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5109417A (en) * 1989-01-27 1992-04-28 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
EP0511692A3 (en) † 1989-01-27 1993-01-27 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
DE3902948A1 (en) * 1989-02-01 1990-08-09 Telefunken Fernseh & Rundfunk METHOD FOR TRANSMITTING A SIGNAL
KR0141581B1 (en) * 1989-05-17 1998-07-01 헤르메스 보르드만 Process for transmitting and receiving a signal
ATE92691T1 (en) * 1989-10-06 1993-08-15 Telefunken Fernseh & Rundfunk METHOD OF TRANSMITTING A SIGNAL.
AU645039B2 (en) * 1989-10-06 1994-01-06 Telefunken Fernseh Und Rundfunk Gmbh Process for transmitting a signal
JP2913731B2 (en) * 1990-03-07 1999-06-28 ソニー株式会社 Highly efficient digital data encoding method.
CN1062963C (en) * 1990-04-12 2001-03-07 多尔拜实验特许公司 Adaptive-block-lenght, adaptive-transform, and adaptive-window transform coder, decoder, and encoder/decoder for high-quality audio
JP3185214B2 (en) 1990-06-12 2001-07-09 日本電気株式会社 Forward DCT and inverse DCT for improved DCT
DE4020656A1 (en) * 1990-06-29 1992-01-02 Thomson Brandt Gmbh METHOD FOR TRANSMITTING A SIGNAL
JP3033156B2 (en) * 1990-08-24 2000-04-17 ソニー株式会社 Digital signal coding device
US5559900A (en) * 1991-03-12 1996-09-24 Lucent Technologies Inc. Compression of signals for perceptual quality by selecting frequency bands having relatively high energy
EP0525774B1 (en) * 1991-07-31 1997-02-26 Matsushita Electric Industrial Co., Ltd. Digital audio signal coding system and method therefor
DE4202140A1 (en) * 1992-01-27 1993-07-29 Thomson Brandt Gmbh Digital audio signal transmission using sub-band coding - inserting extra fault protection signal, or fault protection bit into data frame
EP0559348A3 (en) 1992-03-02 1993-11-03 AT&T Corp. Rate control loop processor for perceptual encoder/decoder
CA2090052C (en) * 1992-03-02 1998-11-24 Anibal Joao De Sousa Ferreira Method and apparatus for the perceptual coding of audio signals
DE4211945C1 (en) * 1992-04-09 1993-05-19 Institut Fuer Rundfunktechnik Gmbh, 8000 Muenchen, De
JPH0775339B2 (en) * 1992-11-16 1995-08-09 株式会社小電力高速通信研究所 Speech coding method and apparatus
EP0649137A4 (en) * 1993-04-14 1998-10-21 Sony Corp Method and apparatus for transforming signals, and recording medium.
WO1995001680A1 (en) * 1993-06-30 1995-01-12 Sony Corporation Digital signal encoding device, its decoding device, and its recording medium
US5451954A (en) * 1993-08-04 1995-09-19 Dolby Laboratories Licensing Corporation Quantization noise suppression for encoder/decoder system
US5581653A (en) * 1993-08-31 1996-12-03 Dolby Laboratories Licensing Corporation Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder
TW327223B (en) * 1993-09-28 1998-02-21 Sony Co Ltd Methods and apparatus for encoding an input signal broken into frequency components, methods and apparatus for decoding such encoded signal
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
PL177808B1 (en) * 1994-03-31 2000-01-31 Arbitron Co Method and device for coding the sound signal
JP3186412B2 (en) * 1994-04-01 2001-07-11 ソニー株式会社 Information encoding method, information decoding method, and information transmission method
JPH08223049A (en) * 1995-02-14 1996-08-30 Sony Corp Signal coding method and device, signal decoding method and device, information recording medium and information transmission method
JP3307138B2 (en) * 1995-02-27 2002-07-24 ソニー株式会社 Signal encoding method and apparatus, and signal decoding method and apparatus
US5960390A (en) * 1995-10-05 1999-09-28 Sony Corporation Coding method for using multi channel audio signals
US5825320A (en) * 1996-03-19 1998-10-20 Sony Corporation Gain control method for audio encoding device
US5848391A (en) * 1996-07-11 1998-12-08 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Method subband of coding and decoding audio signals using variable length windows
TW384434B (en) 1997-03-31 2000-03-11 Sony Corp Encoding method, device therefor, decoding method, device therefor and recording medium
US6718217B1 (en) * 1997-12-02 2004-04-06 Jsr Corporation Digital audio tone evaluating system
US6591100B1 (en) * 1998-11-19 2003-07-08 Ericsson Inc. Cellular communication device with scanning receiver and continuous mobile communication system employing same
DE102004007184B3 (en) 2004-02-13 2005-09-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and apparatus for quantizing an information signal
DE102004007191B3 (en) 2004-02-13 2005-09-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio coding
KR102000188B1 (en) * 2017-08-04 2019-07-15 국방과학연구소 Apparatus for generating communication intelligence by detecting multichannel communication signal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330689A (en) * 1980-01-28 1982-05-18 The United States Of America As Represented By The Secretary Of The Navy Multirate digital voice communication processor
CH649181A5 (en) * 1980-02-01 1985-04-30 Schweiz Eidgenossenschaft METHOD AND CIRCUIT FOR SECURED transmitting voice signals.
DE3102822C2 (en) * 1981-01-28 1984-02-16 Siemens AG, 1000 Berlin und 8000 München Method for frequency-band-compressed speech transmission
SE430739B (en) * 1982-04-27 1983-12-05 Tore Torstensson Fjellbrant DEVICE FOR TRANSFORMATION, TRANSFER AND RE-TRANSFORMATION OF A COMPLETE SIGNAL
DE3310480C2 (en) * 1983-03-23 1986-02-13 Seitzer, Dieter, Prof. Dr.-Ing., 8520 Erlangen Digital coding process for audio signals

Also Published As

Publication number Publication date
EP0193143B1 (en) 1992-05-06
DK89786D0 (en) 1986-02-27
ES8707045A1 (en) 1987-07-01
NO174868C (en) 1994-07-20
EP0193143A2 (en) 1986-09-03
NO174868B (en) 1994-04-11
DK166933B1 (en) 1993-08-02
KR860006885A (en) 1986-09-15
EP0193143A3 (en) 1988-07-20
DE3685134D1 (en) 1992-06-11
JPS61201526A (en) 1986-09-06
NO860718L (en) 1986-08-28
KR910001428B1 (en) 1991-03-05
JPH0523653B2 (en) 1993-04-05
DE3506912C2 (en) 1993-07-29
HK42996A (en) 1996-03-22
ES552325A0 (en) 1987-07-01
ATE75890T1 (en) 1992-05-15
DE3506912A1 (en) 1986-08-28

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PUP Patent expired