8. A method of determining at least one of a beginning or end of an audio speech segment, the method comprising: receiving a portion of an audio stream that includes a speech segment; identifying a triggering characteristic in the speech segment; applying at least one decision rule to the speech segment of the audio stream to count a number of isolated energy events in the audio stream that precede the triggering characteristic; and determining that a frame of the audio stream is outside of an endpoint of the speech segment when a number of allowed isolated energy events is exceeded.
8. A method of determining at least one of a beginning or end of an audio speech segment, the method comprising: receiving a portion of an audio stream that includes a speech segment; identifying a triggering characteristic in the speech segment; applying at least one decision rule to the speech segment of the audio stream to count a number of isolated energy events in the audio stream that precede the triggering characteristic; and determining that a frame of the audio stream is outside of an endpoint of the speech segment when a number of allowed isolated energy events is exceeded. 14. The method of claim 8 , further comprising detecting the beginning and end of the audio speech segment.