H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 15/00 (2006.01) G10L 21/02 (2006.01)
Patent
CA 2207866
A noise filter technique estimates noise in speech that has been processed by Call Multiplication Equipment. The received signal has speech frames and interspersed fill-noise frames inserted at a satellite signal receiving station. The filtering technique removes the fill-noise from the signal. The remaining speech frames are analyzed such that the speech frames having the lowest power values are used to create a histogram of power/frequency. This histogram contains information from which the noise-in-speech power spectrum is derived.
L'invention est une méthode de filtrage des bruits qui analyse les bruits dans les paroles traitées par un matériel de multiplication d'appels. Le signal reçu comporte des trames vocales et des trames de bruit de remplissage intercalaires, ces dernières étant introduites à la station de réception des signaux transmis par satellite. La méthode de filtrage extrait le bruit de remplissage du signal. Les trames vocales qui restent sont analysées et celles dont le niveau de puissance est le plus bas sont utilisées pour créer un histogramme puissance-fréquence. Cet histogramme contient des informations à partir desquelles on peut obtenir le spectre de puissance du bruit incorporé au signal vocal.
Medaugh Raymond Stephen
Shaya Ronald
At&t Corp.
Kirby Eades Gale Baker
LandOfFree
Method and apparatus for measuring the noise content of... 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 and apparatus for measuring the noise content of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring the noise content of... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1836840