int err;
short buf[128];
snd_pcm_t *playback_handle;
snd_pcm_hw_params_t *hw_params;

if ((err = snd_pcm_open (&playback_handle, "hw:0,0", SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
    fprintf (stderr, "cannot open audio device %s (%s)n",
         argv[1],
         snd_strerror (err));
    exit (1);
}`