+---------------------+ +----------------------+ +--------------+
 | Sound Object hander | | Faked 'audio.device' | | Applications | etc...
 +---------------------+ +----------------------+ +--------------+
     |                             |                      |
     |  +--------------------------+                      |
     |  |  +----------------------------------------------+
     V  V  V
 +--------------+ +--------------+
 |  ahi.device  | | Applications |
 +--------------+ +--------------+
      |                  |
      |  +---------------+
      V  V
 +---------------+
 |  ahi.library  |
 +---------------+
     |   |   |
     |   |   +----------------------------------+
     |   +-------------------+                  |
     V                       V                  V
 +-----------------+ +---------------+ +-------------------+
 | ahi/paula.audio | | ahi/gus.audio | | ahi/toccata.audio |  etc...
 +-----------------+ +---------------+ +-------------------+

 Level 1:     Device interface

           o  Allows applications to share the resources, with
              priorities etc.
           o  Could even use multiply libraries on a soundcard
              equipped system, to allow both the native hardware
              and the card to be used.
           o  The user (not the application programmer) could select
              desired library (libraries), resolution (8/12/16 bit),
              mixing frequency, number of channels etc...


 Level 2:     Library interface

           o  This library contains mixing functions, perhaps sample
              conversion and (de)crunch functions etc.
           o  For all programs that talks to the hardware today (and has a
              good reason to do so), like composer programs and module
              players. And the ahi.device, of course.

 Level 3:     Sound card drivers

           o  The drivers are libraries.
           o  Only one owner at time.
           o  Can either just send a mixed audio stream to the sound card,
              or chose to preform the mixing itself, perhaps with its own
              DSP.