"dsp":

# --
#!/usr/bin/perl
use Audio::DSP;
($buf, $chan, $fmt, $rate) = (4096, 1, 16, 8000);
$dsp = new Audio::DSP(buffer   => $buf,
                      channels => $chan,
                      format   => $fmt,
                      rate     => $rate);


$dsp->init() || die $dsp->errstr();

open(IN,"in.pcm");
open(OUT,">out.pcm");

for($i=0;$i<5;$i++){ print OUT $dsp->dread(4096); }

while(4096==read(IN,$buffer,4096)){
  print OUT $dsp->dread(4096);
  $dsp->dwrite($buffer);
}

$dsp->close();

--END dsp---

"soundc" :

#!/usr/bin/perl -w
use IO::Socket;
$host = shift(@ARGV);
$remote = IO::Socket::INET->new( Proto     => "tcp",
                                     PeerAddr  => $host,
                                     PeerPort  => "9000",
                                               );
$remote->autoflush(1);

system("./dsp &");


if($kidpid=fork()){
  open(WRITE,"|lame --decode --mp3input -f - in.pcm");
  while(4096==read($client,$buffer,4096)){
    print WRITE $buffer;
    }
    kill("TERM",$kidpid);
 
} else {
  open(READ," lame -frx -s 8000 -m m -b 8  out.pcm - |");
  for(;;){
    read(READ,$buffer2,4096);
    print $client $buffer2;
  }

}
close(READ);
close(WRITE);
close $remote;

-- END soundc ---

"soundd" :

#!/usr/bin/perl -w
use IO::Socket;
use Net::hostent;              # for OO version of gethostbyaddr

$PORT = 9000;                  # pick something not in use

$server = IO::Socket::INET->new( Proto     => 'tcp',
                                 LocalPort => $PORT,
                                 Listen    => SOMAXCONN,
                                 Reuse     => 1);

die "can't setup server" unless $server;
print "[Server $0 accepting clients]\n";
while ($client = $server->accept()) {
$client->autoflush(1);
  system("./dsp &");
  if($kidpid=fork()){
    open(WRITE,"|lame --decode --mp3input -f - in.pcm");
    while(4096==read($client,$buffer,4096)){
      print WRITE $buffer;
    }
    kill("TERM",$kidpid);
  } else {
    open(READ," lame -frx -s 8000 -m m -b 8  out.pcm - |");
    for(;;){
     read(READ,$buffer2,4096);
     print $client $buffer2;
    }
  }
  close(READ);
  close(WRITE);
  #close $client;
}

--- END soundd ---