Method and apparatus for detecting the presence of a speech...

Details Method and apparatus for detecting the presence of a speech... Method and apparatus for detecting the presence of a speech...

H - Electricity

04

J

363/1

H04J 6/02 (1980.01)

Patent

CA 1090019

ABSTRACT OF THE DISCLOSURE A system and method for detecting the presence of useful speech information in telephone voice channels capable of containing noise as well as such useful speech information for optimizing the telephone transmission of such speech information. Two segments of the envelope of a given voice channel are compared against each other over two different time domains in order to determine if a predetermined magnitude of difference exists between these envelopes. The presence of such magnitude of difference is indicative of the presence of such useful speech information in the voice channel thereby enabling transmission thereof by the system, whereas the absence of such magnitude of difference is indicative of the presence of solely noise thereby preventing the transmission thereof by the system.

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