8. A system for modifying an audio input signal, the audio input signal comprising voiced segments and unvoiced segments, and said system comprising, in combination, a microphone for producing the audio input signal, and a signal processor for modifying said audio input signal to alter one or more attributes of at least selected ones of the voiced segments to alter one or more real-time social signaling characteristics of the audio input signal to form an audio output signal.
8. A system for modifying an audio input signal, the audio input signal comprising voiced segments and unvoiced segments, and said system comprising, in combination, a microphone for producing the audio input signal, and a signal processor for modifying said audio input signal to alter one or more attributes of at least selected ones of the voiced segments to alter one or more real-time social signaling characteristics of the audio input signal to form an audio output signal. 9. The system of claim 8 wherein said one or more social signaling characteristics is persuasiveness and wherein said signal processor alters the duration of said selected ones of said voiced segments.