Something that would definitely be useful IMO is at least a display of
the audio latency (in milliseconds) somewhere in the media prefs. When
doing any real-time audio processing, it's good to know what to expect
of the system. Of course, it can also be displayed by the applications
using BSoundPlayer::Latency() or similar calls... but having the value
per sound interface in the media prefs allows to quickly determine if
the machine is useful for real-time audio, and if several audio
interfaces are present, which one of them is best in terms of low
latency.
