A voice acquisition system for a vehicle includes an interior rearview mirror assembly attached at an inner portion of the windshield of a vehicle equipped with the interior rearview mirror assembly. The interior rearview mirror assembly includes at least two microphones for receiving audio signals within a cabin of the vehicle and generating an output indicative of the audio signals. A control is in the vehicle and is responsive to the output from the at least one microphone. The control at least partially distinguishes vocal signals from non-vocal signals present in the output. The at least two microphones provide sound capture for at least one of a hands free cell phone system, an audio recording system and a wireless communication system.