Here is a simple Audio::DSP script for wave playback. Remember, you need to initialize the soundcard, to accept the audio data you pump in. The program Sox will help you detecting wav information.

On Ubuntu, with the Alsa sound system, you have a great utility called aplay. It will auto-detect the soundfile stats, for proper playing, so all you need to play a wav is

#!/usr/bin/perl

# fork off, so the playback is non-blocking
if(fork() == 0){exec("aplay $my_sound_file")}
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Or with Perl......

#!/usr/bin/perl
use warnings;
use strict;
use Audio::DSP;
#alsamixer must be setup right, just turn everything up :-)

#  use the channel count, bitrate, and samplerate of the wave 
#  you want to play
my ($buf, $chan, $fmt, $rate) = (4096, 1, 8, 22050);

my $dsp = new Audio::DSP(buffer   => $buf,
                      channels => $chan,
                      format   => $fmt,
                      rate     => $rate);
$dsp->init() || die $dsp->errstr();

my $file = shift || 'Om.wav';

open(IN, "<$file") or warn $!;
while ( 4096 == read( IN, my $buffer, 4096 ) ) {
    $dsp->dwrite($buffer);
}

$dsp->close();
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