A cabin communication system for improving clarity of a voice spoken
within an interior cabin having ambient noise includes a microphone for
receiving the spoken voice and the ambient noise and for converting the
spoken voice and the ambient noise into an audio signal, the audio signal
having a first component corresponding to the spoken voice and a second
component corresponding to the ambient noise, a speech enhancement filter
for removing the second component from the audio signal to provide a
filtered audio signal, the speech enhancement filter removing the second
component by processing the audio signal by a method taking into account
elements of psycho-acoustics of a human ear, and a loudspeaker for
outputting a clarified voice in response to the filtered audio signal.