2. The method of claim 1 , wherein said augmenting step comprises: detecting a speech starting point in said audio stream at which a speech signal including said first portion of said audio stream actually starts; and augmenting said speech signal with one or more audio frames immediately preceding said user-designated start point to form said augmented audio signal.
2. The method of claim 1 , wherein said augmenting step comprises: detecting a speech starting point in said audio stream at which a speech signal including said first portion of said audio stream actually starts; and augmenting said speech signal with one or more audio frames immediately preceding said user-designated start point to form said augmented audio signal. 3. The method of claim 2 , wherein said augmented audio signal begins at an audio frame that occurs before said speech starting point, and said speech starting point occurs at or before said user-designated start point.