rtinput("somesoundfile")
val = PEAK()
val = LEFT_PEAK()
val = RIGHT_PEAK()
val = PEAK(start, end)
val = LEFT_PEAK(start, end)
val = RIGHT_PEAK(start, end)
These commands operate upn the most recently opened input
soundfile by the
rtinput command.
PEAK returns the overall peak for both channels, RIGHT_PEAK
and LEFT_PEAK return the peak amplitudes for the left (channel 0)
and right (channel 1) channels, respectively. start and end
are starting and ending times to scan the soundfile (in seconds).
These routines will attempt to read the peak amplitude(s) stored in
the soundfile header. If this is not possible, then the soundfile
itself will be scanned. They do not work on a realt-time audio input
device.