Method of transmitting speech using discontinuous transmission and comfort noise - id: 6381568









Speech transmission method by initializing silence, transmit, and blank-period counters; receiving frame; determining frame is speech; if transmit counter is zero and blank-period counter is less than x then discard frame, increment blank-period counter, and return to second step; if transmit counter is zero, blank-period counter greater than x-1, and frame not speech then discard frame, increment blank-period counter, and return to second step; if transmit counter is zero, blank-period counter greater than x-1, and frame is speech then set transmit counter to one, set blank-period counter to zero, set silence counter to zero, encode frame, transmit encoded frame, and return to second step; if transmit counter is one, frame not speech, and silence counter less than y then encode frame, transmit encoded frame, increment silence counter, and return to second step; if transmit counter is one, frame not speech, and silence counter greater than y+z-2 then set transmit counter to zero, discard frame, encode comfort noise, transmit encoded comfort noise, increment silence counter, and return to second step; if transmit counter is one, frame not speech, and silence counter greater than y-1 then discard frame, encode comfort noise, transmit encoded comfort noise, increment silence counter, and return to second step; and if transmit counter is one, frame is speech, and silence counter less than y+z then encode frame, transmit encoded frame, set silence counter to zero, and return to second step.Method of transmitting speech using discontinuous transmission and comfort noise638156830/04/200205/05/199920021,091Supplee; Lynn MicheleDean; Richard A.Kohler; Mary AUS Patent and Trademark OfficeGoogle Patent Searchpatentimages.storage.googleapis.com/US6381568B1/US06381568-20020430-D00000.pngUnique