G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 11/02 (2006.01) G10L 11/06 (2006.01)
Patent
CA 2304012
The invention concerns a method whereby the digital speech signal (s) processed by successive frames is subjected to noise suppression taking into account noise estimations included in the signal, updated for each frame based on at least one degree of speech activity (.gamma.¿n,i?). The method consists in carrying out an a priori noise suppression of each frame speech signal on the basis of the noise estimations obtained while processing at least one previous frame, and analysing the energy variations of the signal which has been subjected to an a priori noise suppression to detect the degree of speech activity of said frame.
Le signal de parole numérique (s) traité par trames successives est soumis à un débruitage en tenant compte d'estimations du bruit compris dans le signal, mises à jour pour chaque trame d'une manière dépendante d'au moins un degré d'activité vocale (.gamma.n,i). On procède à un débruitage a priori du signal de parole de chaque trame sur la base d'estimations du bruit obtenues lors du traitement d'au moins une trame précédente, et on analyse les variations d'énergie du signal débruité a priori pour détecter le degré d'activité vocale de ladite trame.
Lockwood Philip
Lubiarz Stephane
Fetherstonhaugh & Co.
Matra Nortel Communications
LandOfFree
Method for detecting speech activity does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for detecting speech activity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for detecting speech activity will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1785592