EP 0110467 B1 19870812 - ARRANGEMENT FOR THE DETECTION OF SPEECH INTERVALS
Title (en)
ARRANGEMENT FOR THE DETECTION OF SPEECH INTERVALS
Publication
Application
Priority
DE 3243231 A 19821123
Abstract (en)
[origin: CA1203627A] Method of recognizing speech pauses. The described method of recognizing pauses in a speech signal enables -this recognition also when a slowly varying noise signal is superposed on the speech signal. For the purpose of pause recognition so-called short-time mean values connected with a clock pulse are continuously determined from the samples of the disturbed speech signal, which short time mean values are a measure of the average power of approximately 100 ms long sections of the disturbed speech signals. The sequence of these short-time mean values is then smoothed by linear filtration or by means of a median filter. In parallel with the smoothing operation an estimate for the noise signal power averaged over a few seconds is taken from the sequence of short-time mean values. If the smoothed short time mean value is once or several times less than a threshold which is proportional to the above-mentioned estimate, then it is decided that there is a speech pause.
IPC 1-7
IPC 8 full level
G10L 11/00 (2006.01); G10L 11/02 (2006.01); G10L 15/04 (2006.01); G10L 25/78 (2013.01); G10L 25/87 (2013.01)
CPC (source: EP US)
G10L 25/78 (2013.01 - EP US); G10L 25/87 (2013.01 - EP US); G10L 2025/786 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT SE
DOCDB simple family (publication)
EP 0110467 A1 19840613; EP 0110467 B1 19870812; EP 0110467 B2 19910619; AU 2154583 A 19840531; AU 561076 B2 19870430; CA 1203627 A 19860422; DE 3243231 A1 19840524; DE 3243231 C2 19870702; DE 3373037 D1 19870917; JP S59105695 A 19840619; US 4700394 A 19871013
DOCDB simple family (application)
EP 83201638 A 19831117; AU 2154583 A 19831121; CA 441366 A 19831117; DE 3243231 A 19821123; DE 3373037 T 19831117; JP 22046783 A 19831122; US 55299883 A 19831117