A voice acquisition system for a vehicle includes a rearview mirror
assembly, at least one microphone and a control. The at least one
microphone receives audio signals within a cabin of the vehicle and
generates an output signal indicative of the audio signals. The at least
one microphone provides sound capture for at least one of a hands free
cell phone system, an audio recording system and an emergency
communication system. The control is operable to receive the output signal
from the at least one microphone, and is operable to distinguish the
presence of vocal signals from non-vocal signals. The control
distinguishes the vocal signals from the non-vocal signals by a ratio of
at least 2:1.