EP 1415505 A1 20040506 - DETECTING VOICED AND UNVOICED SPEECH USING BOTH ACOUSTIC AND NONACOUSTIC SENSORS
Title (en)
DETECTING VOICED AND UNVOICED SPEECH USING BOTH ACOUSTIC AND NONACOUSTIC SENSORS
Title (de)
ERKENNEN STIMMHAFTER UND NICHTSTIMMHAFTER SPRACHE UNTER VERWENDUNG VON AKUSTISCHEN UND NICHTAKUSTISCHEN SENSOREN
Title (fr)
DETECTION DE PAROLE VOISEE ET NON VOISEE A L'AIDE DE DETECTEURS ACOUSTIQUES ET DE DETECTEURS NON ACOUSTIQUES
Publication
Application
Priority
- US 0217251 W 20020530
- US 29438301 P 20010530
- US 90536101 A 20010712
- US 33510001 P 20011030
- US 33220201 P 20011121
- US 99084701 A 20011121
- US 36210302 P 20020305
- US 36216102 P 20020305
- US 36216202 P 20020305
- US 36217002 P 20020305
- US 36198102 P 20020305
- US 36820802 P 20020327
- US 36820902 P 20020327
- US 36834302 P 20020327
Abstract (en)
[origin: CA2448669A1] Systems and methods are provided for detecting voiced and unvoiced speech in acoustic signals having varying levels of background noise. The systems (Fig . 3) receive acoustic signals at two microphones (Mic 1, Mic 2), and generate difference parameters between the acoustic signals received at each of the t wo microphones (Mic 1, Mic 2). The difference parameters are representative of the relative difference in signal gain between portions of the receive acoustic signals. The systems identify information of the acoustic signals a s unvoiced speech when the difference parameters exceed a first threshold, and identify information of the acoustic signals as voiced speech when the difference parameters exceed a second threshold. Further, embodiments of the systems include non-acoustic sensors (20) that receive physiological information to aid identifying voiced speech.
IPC 1-7
IPC 8 full level
G10L 25/93 (2013.01); G10L 15/02 (2006.01); G10L 15/20 (2006.01); H04R 3/00 (2006.01)
CPC (source: KR)
G10L 25/93 (2013.01)
Citation (search report)
See references of WO 02098169A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
CA 2448669 A1 20021205; CN 1513278 A 20040714; EP 1415505 A1 20040506; JP 2005503579 A 20050203; KR 100992656 B1 20101105; KR 20040030638 A 20040409
DOCDB simple family (application)
CA 2448669 A 20020530; CN 02810972 A 20020530; EP 02739572 A 20020530; JP 2003501229 A 20020530; KR 20037015511 A 20020530