sound player facility
sound(y [,fs,bits,command)
:y real vector : :fs real number, sampling frequency in sample per second (default
value is 22050)
: :bits real number, number of bits (unused) : :command Only used on Unix systems it gives the name of the command
to use for playing sound (wav) files. The defaut value is aplay. If set /dev/audio then a 8 bits mu-law raw sound file is created and send to /dev/audio
:
sound(y,fs)`plays the sound signal given by matrix `y (with sample frequency fs). In fact this function is just a wrapper for playsnd. Values in y are assumed to be in the range -1.0 <= y <= 1.0. Values outside that range are truncated. The number of rows of y gives the number of channels. sound(y) plays the sound at the default sample rate of 22050 sample per second. sound(y,fs,nbits) plays the sound using nbits bits/sample if possible (it is in fact unused). Most platforms support bits=8 or 16.
// a two channel signal
y=`loadwave`_("SCI/modules/sound/demos/chimes.wav");
sound(y)