Global Patent Index - EP 1451548 A2

EP 1451548 A2 20040901 - SPEECH DETECTION SYSTEM IN AN AUDIO SIGNAL IN NOISY SURROUNDING

Title (en)

SPEECH DETECTION SYSTEM IN AN AUDIO SIGNAL IN NOISY SURROUNDING

Title (de)

EINRICHTUNG ZUR SPRACHDETEKTION IN EINEM AUDIOSIGNAL BEI UMGEBUNGSGERÄUSCHEN

Title (fr)

SYSTEM DE DETECTION DE PAROLE DANS UN SIGNAL AUDIO EN ENVIRONNEMENT BRUITE

Publication

EP 1451548 A2 20040901 (FR)

Application

EP 02788059 A 20021115

Priority

  • FR 0203910 W 20021115
  • FR 0115685 A 20011205

Abstract (en)

[origin: WO03048711A2] The invention concerns a speech detection method in an audio signal comprising a step which consists in obtaining an energy information of the audio signal, said energy information being used to detect speech in the audio signal. The invention is characterized in that the method further comprises a step which consists in obtaining a vocalizing information of the audio signal, said vocalizing information being used jointly with the energy information for speech detection in the audio signal.

IPC 1-7

G01L 21/02

IPC 8 full level

G10L 25/78 (2013.01); G10L 25/90 (2013.01); G10L 25/93 (2013.01)

CPC (source: EP US)

G10L 25/78 (2013.01 - EP US); G10L 25/90 (2013.01 - EP US); G10L 25/93 (2013.01 - EP US)

Citation (search report)

See references of WO 03048711A2

Citation (examination)

  • JUNQUA J -C; MAK B; REAVES B: "A robust algorithm for word boundary detection in the presence of noise", IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, vol. 2, no. 3, July 1994 (1994-07-01), usa, pages 406 - 412
  • LAMEL L F; RABINER L R; ROSENBERG A E; WILPON J G: "An improved endpoint detector for isolated word recognition", IEEE TRANSACTIONS ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, vol. ASSP-29, no. 4, August 1981 (1981-08-01), 08-1981, pages 777 - 785, XP002062762, DOI: doi:10.1109/TASSP.1981.1163642

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

WO 03048711 A2 20030612; WO 03048711 A3 20040212; AU 2002352339 A1 20030617; AU 2002352339 A8 20030617; EP 1451548 A2 20040901; FR 2833103 A1 20030606; FR 2833103 B1 20040709; US 2005143978 A1 20050630; US 7359856 B2 20080415

DOCDB simple family (application)

FR 0203910 W 20021115; AU 2002352339 A 20021115; EP 02788059 A 20021115; FR 0115685 A 20011205; US 49787405 A 20050128