Method of detecting silence in a packetized voice stream

Details Method of detecting silence in a packetized voice stream Method of detecting silence in a packetized voice stream

G - Physics

10

L

G10L 11/02 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2309525

A method and apparatus are provided for detecting silence in voice packets. A packet energy calculator calculates a smoothed energy value for each packet of voice data to be transmitted. A noise level detector adaptively calculates noise values during periods of said silence. A silent packet detector compares the energy value to the noise value and if it is less than the noise value and less than a predetermined silence ceiling value then silence is indicated. Also, if the energy value is less than a predetermined silence noise value then silence is also indicated.

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