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== 2007-07-06 ==
Here's configuration for outputting signal simultaneously to the analog and to the digital out with software mixing:

<code>
  pcm.!default {
    type plug
    slave.pcm audiophile_dmix
    ttable.0.0 1 # H/W 1
    ttable.1.1 1 # H/W 2
    ttable.0.8 1 # S/PDIF L
    ttable.1.9 1 # S/PDIF R
  }
  pcm.analog {
    type plug
    slave.pcm audiophile
    ttable.0.0 1 # H/W 1
    ttable.1.1 1 # H/W 2
  }
  pcm.analog_dmix {
    type plug
    slave.pcm audiophile_dmix
    ttable.0.0 1 # H/W 1
    ttable.1.1 1 # H/W 2
  }
  pcm.digital {
    type plug
    slave.pcm audiophile
    ttable.0.8 1 # S/PDIF L
    ttable.1.9 1 # S/PDIF R
  }
  pcm.digital_dmix {
    type plug
    slave.pcm audiophile_dmix
    ttable.0.8 1 # S/PDIF L
    ttable.1.9 1 # S/PDIF R
  }
  pcm.audiophile_dmix {
    type dmix
    ipc_key 1024
    slave {
      pcm "audiophile"
      period_time 0
      period_size 1024
      buffer_size 6553
      rate 44100
      format S32_LE
    }
  }
  pcm.audiophile {
    type hw
    card 0
    device 0
  }
</code>

By default signal is software mixed and outputted both to the analog and to the digital out:

'''mplayer -ao alsa:device=default test1.mp3'''

You can also mix different signals to the digital and the analog out:

'''mplayer -ao alsa:device=default test1.mp3'''<BR>
'''mplayer -ao alsa:device=analog_dmix test2.mp3'''<BR>
'''mplayer -ao alsa:device=digital_dmix test3.mp3'''<BR>

True audiophile playback without software mixing is also available (of course then you can use only one signal source):

'''mplayer -ao alsa:device=analog test1.mp3'''

or

'''mplayer -ao alsa:device=digital test1.mp3'''

For mmap using OSS applications (Quake, Enemy Territory) I found that artsdsp is the way to go (aoss, pulseaudio and esd did not work for me):

'''artsd -a alsa &'''<BR>
'''artsdsp -m et.x86'''

And it still is software mixing!

[[Category:ALSA_modules]]