EP1587219A3 - Record carrier having an encoded wideband digital audio signal recorded on it - Google Patents

Record carrier having an encoded wideband digital audio signal recorded on it Download PDF

Info

Publication number
EP1587219A3
EP1587219A3 EP05103587A EP05103587A EP1587219A3 EP 1587219 A3 EP1587219 A3 EP 1587219A3 EP 05103587 A EP05103587 A EP 05103587A EP 05103587 A EP05103587 A EP 05103587A EP 1587219 A3 EP1587219 A3 EP 1587219A3
Authority
EP
European Patent Office
Prior art keywords
signals
record carrier
band
sub
audio signal
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.)
Withdrawn
Application number
EP05103587A
Other languages
German (de)
French (fr)
Other versions
EP1587219A2 (en
Inventor
Gerardus C. P. c/o Philips Int. P. & S. Lokhoff
Yves F. c/o Philips Int. P. & S. Déhery
Günther c/o Philips Int. P. & S. Theile
Gerhard c/o Philips Int. P. & S. Stoll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institut fuer Rundfunktechnik GmbH
Telediffusion de France ets Public de Diffusion
Orange SA
Koninklijke Philips NV
Original Assignee
Institut fuer Rundfunktechnik GmbH
Telediffusion de France ets Public de Diffusion
France Telecom SA
Koninklijke Philips Electronics NV
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 NL9000338A external-priority patent/NL9000338A/en
Application filed by Institut fuer Rundfunktechnik GmbH, Telediffusion de France ets Public de Diffusion, France Telecom SA, Koninklijke Philips Electronics NV filed Critical Institut fuer Rundfunktechnik GmbH
Publication of EP1587219A2 publication Critical patent/EP1587219A2/en
Publication of EP1587219A3 publication Critical patent/EP1587219A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G10L19/0208—Subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing

Abstract

Reproduction accuracy of a digital signal, representing for example stereo audio signals, is improved by transmitting sample data, which have been encoded to form transmission signals. The stereo audio signals are coded into sub(band) signals. Corresponding sub(band)signals of the stereo audio signals may be processed to obtain composite sub(band) signals, which are recorded on a record carrier.
To identify whether corresponding sub(band) signals have been processed or not, a mode indicator control signal indicating whether a corresponding sub signal of the at least two signal components have or have not been processed into a composite sub signal is also being recorded on the record carrier.
EP05103587A 1990-02-13 1990-05-29 Record carrier having an encoded wideband digital audio signal recorded on it Withdrawn EP1587219A3 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
NL9000338A NL9000338A (en) 1989-06-02 1990-02-13 DIGITAL TRANSMISSION SYSTEM, TRANSMITTER AND RECEIVER FOR USE IN THE TRANSMISSION SYSTEM AND RECORD CARRIED OUT WITH THE TRANSMITTER IN THE FORM OF A RECORDING DEVICE.
NL9000338 1990-02-13
EP90201356A EP0402973B1 (en) 1989-06-02 1990-05-29 Digital transmission system, transmitter and receiver for use in the transmission system, and record carrier obtained by means of the transmitter in the form of a recording device
EP99202037A EP0949763B1 (en) 1989-06-02 1990-05-29 Digital transmission system for transmitting scale factors
EP94200240A EP0599825B1 (en) 1989-06-02 1990-05-29 Digital transmission system for transmitting an additional signal such as a surround signal

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP99202037A Division EP0949763B1 (en) 1989-06-02 1990-05-29 Digital transmission system for transmitting scale factors
EP94200240.3 Division 1994-02-08
EP99202037.0 Division 1999-06-24

Publications (2)

Publication Number Publication Date
EP1587219A2 EP1587219A2 (en) 2005-10-19
EP1587219A3 true EP1587219A3 (en) 2006-06-28

Family

ID=37770237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05103587A Withdrawn EP1587219A3 (en) 1990-02-13 1990-05-29 Record carrier having an encoded wideband digital audio signal recorded on it

Country Status (1)

Country Link
EP (1) EP1587219A3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289080A1 (en) * 1987-04-27 1988-11-02 Koninklijke Philips Electronics N.V. System for subband coding of a digital audio signal
EP0372601A1 (en) * 1988-11-10 1990-06-13 Koninklijke Philips Electronics N.V. Coder for incorporating extra information in a digital audio signal having a predetermined format, decoder for extracting such extra information from a digital signal, device for recording a digital signal on a record carrier, comprising such a coder, and record carrier obtained by means of such a device
CA2363045A1 (en) * 1989-06-02 1990-12-02 France Telecom Intensity-stereo encoding in a transmission system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0289080A1 (en) * 1987-04-27 1988-11-02 Koninklijke Philips Electronics N.V. System for subband coding of a digital audio signal
EP0372601A1 (en) * 1988-11-10 1990-06-13 Koninklijke Philips Electronics N.V. Coder for incorporating extra information in a digital audio signal having a predetermined format, decoder for extracting such extra information from a digital signal, device for recording a digital signal on a record carrier, comprising such a coder, and record carrier obtained by means of such a device
CA2363045A1 (en) * 1989-06-02 1990-12-02 France Telecom Intensity-stereo encoding in a transmission system
EP0599824A2 (en) * 1989-06-02 1994-06-01 Koninklijke Philips Electronics N.V. Intensity-stereo encoding and decoding in a transmission system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
KRASNER M A: "The critical band coder-digital encoding of speech signals based on the perceptual requirements of the auditory system", ICASSP 80 PROCEEDINGS. IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING IEEE NEW YORK, NY, USA, vol. II, no. 9.4.1980, 11 April 1980 (1980-04-11), pages 327 - 331, XP002308081 *
VOROS P: "High-quality sound coding within 2*64 kbit/s using instantaneous dynamic bit-allocation", ICASSP 88: 1988 INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (CAT. NO.88CH2561-9) IEEE NEW YORK, NY, USA, no. 11.4.1988, 14 April 1988 (1988-04-14), pages 2536 - 2539, XP002308082 *

Also Published As

Publication number Publication date
EP1587219A2 (en) 2005-10-19

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