Patent ID: 7680655

Claim:
A method for determining the quality of a speech transmission processed by a speech transmission system, the method comprising the steps of: creating a test signal to be transmitted through the speech transmission system; transmitting the test signal through the speech transmission system, wherein the speech transmission system includes a vocoder and wherein the speech transmission system uses the vocoder to create an output signal that corresponds to the test signal as modified by the speech transmission system; wherein the test signal comprises: a plurality of segments of speech signals interleaved with a plurality of periods of silence, wherein between adjacent segments of the plurality of segments there is a period of silence of the plurality of periods of silence; wherein each segment of the plurality of segments comprises a plurality of speech samples interleaved with a plurality of silence gaps, wherein there is a silence gap of the plurality of silence gaps between adjacent speech samples of the plurality of speech samples, wherein each speech sample of the plurality of speech samples has a first predefined duration; wherein the plurality of silence gaps do not all have a same duration; wherein the plurality of periods of silence do not all have a same duration; and wherein the first predefined duration is a function of a packet size associated with the speech transmission system.