Global Patent Index - EP 2028651 A1

EP 2028651 A1 20090225 - Method and apparatus for detection of specific input signal contributions

Title (en)

Method and apparatus for detection of specific input signal contributions

Title (de)

Verfahren und Vorrichtung zur Entdeckung spezieller Eingabesignalbeiträge

Title (fr)

Procédé et appareil pour la détection de contributions de signal d'entrée spécifiques

Publication

EP 2028651 A1 20090225 (EN)

Application

EP 07114945 A 20070824

Priority

EP 07114945 A 20070824

Abstract (en)

Apparatus and method for detecting a single source contribution in an input signal comprising contributions from more than one source. An input analysis device (3) receives the input signal, for providing a time-frequency representation of the input signal. A neural preprocessing device (5) is connected to the input analysis device (3), for separating a foreground signal from background signals in the time-frequency representation of the input signal. A feature estimation device (7) is connected to the neural preprocessing device (5) for detecting specific features in the foreground signal. A model activation device (11) is connected to the feature estimation device (7) for activating one or more of a set of models based on the detected specific features. A decision device (8) is connected to the model activation device (11) for monitoring the possible activation of a specific one of the models and generating an output based on the monitoring.

IPC 8 full level

G10L 21/02 (2006.01); G10L 21/0272 (2013.01); G10L 25/30 (2013.01)

CPC (source: EP)

G10L 21/0272 (2013.01); G10L 25/30 (2013.01)

Citation (search report)

  • [DX] WO 0133547 A1 20010510 - HUQ SPEECH TECHNOLOGIES B V [NL], et al
  • [PX] PICHEVAR ET AL: "Monophonic sound source separation with an unsupervised network of spiking neurones", NEUROCOMPUTING, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 71, no. 1-3, 3 November 2007 (2007-11-03), pages 109 - 120, XP022327394, ISSN: 0925-2312
  • [X] TEDDY S D ET AL: "Model-based approach to separating instrumental music from single track recordings", CONTROL, AUTOMATION, ROBOTICS AND VISION CONFERENCE, 2004. ICARCV 2004 8TH KUNMING, CHINA 6-9 DEC. 2004, PISCATAWAY, NJ, USA,IEEE, US, 6 December 2004 (2004-12-06), pages 1808 - 1813Vol3, XP010815337, ISBN: 0-7803-8653-1
  • [X] DELIANG L WANG AND GUY J BROWN: "Separation of Speech from Interfering Sounds Based on Oscillatory Correlation", IEEE TRANSACTIONS ON NEURAL NETWORKS, vol. 10, no. 3, May 1999 (1999-05-01), pages 684 - 697, XP002461179

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 2028651 A1 20090225; WO 2009028937 A1 20090305

DOCDB simple family (application)

EP 07114945 A 20070824; NL 2008050565 W 20080825