An audio enhancement system and method for use receives a group of
multi-channel audio signals and provides a simulated surround sound
environment through playback of only two output signals. The
multi-channel audio signals comprise a pair of front signals intended for
playback from a forward sound stage and a pair of rear signals intended
for playback from a rear sound stage. The front and rear signals are
modified in pairs by separating an ambient component of each pair of
signals from a direct component and processing at least some of the
components with a head-related transfer function. Processing of the
individual audio signal components is determined by an intended playback
position of the corresponding original audio signals. The individual
audio signal components are then selectively combined with the original
audio signals to form two enhanced output signals for generating a
surround sound experience upon playback.