Specifications

3OD\/LVWV
Play Lists provide a mechanism for the Digital Audio Machine to automatically play
a collection of tracks in a predefined sequence. Play Lists often allow the Digital
Audio Machine to be used to perform complex functions that would normally require
an external controller. Play Lists can perform functions as simple as looping a single
track, or as complex as user prompted pacing of the playback.
Overview
Play Lists hold the key
to the power of the
Digital Audio Machine.
A Play List file contains a list of numbers which refer to audio tracks (or other Play
Lists) on the media in the Digital Audio Machine. When a Play List is being used,
the tracks are played back in the order in which they appear in the list. The Play List
is an ASCII text file and can be made using any ASCII editor. (In the future, Play
Lists will be constructed by selecting files from the Digital Audio Machine
program’s file list). The maximum Play List file size is 64 KBytes (or about 16,000
tracks, if no comments are used).
A Play List can be started by serial or parallel commands, in exactly the same way as
an audio track. For example, the serial message
2SE<CR>PL<CR>
causes Play List PLY00002.LST on the currently selected drive to start. Discrete File
Select Input 2 will also start PLY00002.LST , looking first on the removable media,
then the internal drive.
If Play List 0 (PLY00000.LST ) exists, it will be automatically executed on power
up.
If a Play List contains the number of another Play List, execution of the first Play List
will be terminated at that point, and the new Play List will begin.
A Play List with a .RND extension will cause the Audio Machine to randomly select
clips from the list for play.
Play List Command Summary
The Play List is mainly a list of the track numbers that are to be played. If the same
file number exists on both the internal and removable media, the removable media
takes precedence. Track numbers are entered as one to three ASCII digits, and are
separated by any “white space” characters or punctuation (other than the command
characters listed below).
Special command characters further modify the behavior of the Digital Audio
Machine. These characters are: