Global Patent Index - EP 2628154 A1

EP 2628154 A1 20130821 - METHOD AND DEVICE FOR FORMING A DIGITAL AUDIO MIXED SIGNAL, METHOD AND DEVICE FOR SEPARATING SIGNALS, AND CORRESPONDING SIGNAL

Title (en)

METHOD AND DEVICE FOR FORMING A DIGITAL AUDIO MIXED SIGNAL, METHOD AND DEVICE FOR SEPARATING SIGNALS, AND CORRESPONDING SIGNAL

Title (de)

VERFAHREN UND VORRICHTUNG ZUR BILDUNG EINES GEMISCHEN DIGITALEN TONSIGNALS, VERFAHREN UND VORRICHTUNG ZUR TRENNUNG VON SIGNALEN UND ENTSPRECHENDES SIGNAL

Title (fr)

PROCÉDÉ ET DISPOSITIF DE FORMATION D'UN SIGNAL MIXÉ NUMÉRIQUE AUDIO, PROCÉDÉ ET DISPOSITIF DE SÉPARATION DE SIGNAUX, ET SIGNAL CORRESPONDANT.

Publication

EP 2628154 A1 20130821 (FR)

Application

EP 11767267 A 20111011

Priority

  • FR 1058348 A 20101013
  • EP 2011067730 W 20111011

Abstract (en)

[origin: WO2012049176A1] The invention relates to a method of forming one or more digital audio mixed signals (Sout) on the basis of at least two digital audio source signals (S1, S2), in which the digital audio mixed signal or signals are formed by mixing the digital audio source signals. A characteristic digital magnitude of at least one digital audio source signal is compressed into a series of bits and said series of bits is inserted into said digital audio source signal or into the digital audio mixed signals in an almost inaudible or inaudible manner. The characteristic digital magnitude is the temporal, spectral or spectro-temporal distribution of said digital audio source signal or the temporal, spectral or spectro-temporal contribution of said digital audio source signal in the mixed signal or signals, or said digital audio source signal. The invention also relates to a method of separation intended for separating, at least partially, at least one digital audio source signal contained in one or more digital audio mixed signals obtained previously. The invention also relates to the corresponding digital audio mixed signal (Sout), as well as to the corresponding devices.

IPC 8 full level

G10L 21/02 (2013.01); G10L 19/00 (2013.01); G10L 21/0272 (2013.01); G10L 19/018 (2013.01)

CPC (source: EP US)

G10L 19/018 (2013.01 - EP US); G10L 21/0272 (2013.01 - EP US)

Citation (examination)

  • US 2003035553 A1 20030220 - BAUMGARTE FRANK [US], et al
  • US 2009055196 A1 20090226 - OH HYEN-O [KR], et al
  • US 2008008323 A1 20080110 - HILPERT JOHANNES [DE], et al
  • MATHIEU PARVAIX ET AL: "An audio watermarking method based on molecular matching pursuit", ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 2008. ICASSP 2008. IEEE INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 31 March 2008 (2008-03-31), pages 1721 - 1724, XP031250903, ISBN: 978-1-4244-1483-3
  • YI-WEN LIU ED - ANONYMOUS: "Sound Source Segregation Assisted by Audio Watermarking", MULTIMEDIA AND EXPO, 2007 IEEE INTERNATIONAL CONFERENCE ON, IEEE, PI, 1 July 2007 (2007-07-01), pages 200 - 203, XP031123596, ISBN: 978-1-4244-1016-3
  • BREEBAART JEROEN ET AL: "Spatial Audio Object Coding (SAOC) - The Upcoming MPEG Standard on Parametric Object Based Audio Coding", AES CONVENTION 124; MAY 2008, AES, 60 EAST 42ND STREET, ROOM 2520 NEW YORK 10165-2520, USA, 1 May 2008 (2008-05-01), XP040508593
  • See also references of WO 2012049176A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2012049176 A1 20120419; EP 2628154 A1 20130821; FR 2966277 A1 20120420; FR 2966277 B1 20170331; US 2014037110 A1 20140206

DOCDB simple family (application)

EP 2011067730 W 20111011; EP 11767267 A 20111011; FR 1058348 A 20101013; US 201113879381 A 20111011