A process for combining audio channels combines the audio channels to
produce a combined audio channel and dynamically applies one or more of
time, phase, and amplitude or power adjustments to the channels, to the
combined channel, or to both the channels and the combined channel. One
or more of the adjustments are controlled at least in part by a measure
of auditory events in one or more of the channels and/or the combined
channel. Applications include the presentation of multichannel audio in
cinemas and vehicles. Not only methods, but also corresponding computer
program implementations and apparatus implementations are included.