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The Audio Library
All of the audio tracks that you will use with Digilink-Xtreme must be in a single directory. The Arrakis\Xtreme directory has a
directory inside it titled 'Library'. When first opened, Digilink-Xtreme will look to the 'Library' directory. If there are audio files there,
it will load them as your audio library. If you want to use a different directory as your audio library (perhaps on the network), you
must change the path to the audio directory in Menu\Setup
THE PATH TO THE AUDIO LIBRARY
Digilink-Xtreme can play audio from anywhere across the network. Click on the 'Change Audio Directory' button in the Setup window
and a Windows Find File dialog box will open. Browse the network and click on an audio file in the audio directory that you wish to
choose. Digilink-Xtreme will save the new path as the path for your audio directory.
AUDIO FORMATS THAT XTREME SUPPORTS (wav, mp2, mp3)
Digilink supports simultaneous play of any combination of uncompressed audio files (WAV), MPEG 1 Layer 2 (MP2) , and MPEG 1 Layer
3 (MP3) audio formats. WAV audio files are uncompressed while MP2 and MP3 audio files are compressed audio formats. For CD
quality audio, sampling rates should be 44.1kHz (the CD standard) which provides full 20-20kHz audio bandwidths. For CD quality in
compressed audio, MP2 files should be at least a 192k bit rate while MP3 files should be at least 128k bit rate. Lower bit rates will
result in higher compression ratios but listening tests indicate a lower than CD audio quality for most listeners.
SILENCE AT THE FRONT & BACK OF AN AUDIO FILE
It is important when producing audio files to NOT have silence at the front or back of the audio file. While overlap times can some-
times deal with silence, it is not possible to use overlaps to handle loose production if the adjacent audio files in the list are very
short. It is better to follow careful production rules and eliminate silence from the file. To facilitate converting problematic audio
files to tight files, Arrakis provides a waveform editor to trim the silence.
NAMING AUDIO FILES
Radio specific data must be assigned to every audio file in your library for many of Xtreme's features to operate. Each file must
have a unique cart number to identify it, usually a title, artist, type of audio event such as 'M' for music, etc. This data can be easily
added in the 'LIBRARY' window accessible from the main MENU.
THE ARRAKIS NAMING FORMAT
In its simplest form, a filename must at least have a unique cart number followed by a plus (+) sign and the file extension.
Valid formated filenames are...
Cartno + .Ext
Cartno + Type + .Ext
Cartno + Artist + Type + .Ext
Cartno + Title + Artist + Type + .Ext
where:
Cartno: is a unique name with a maximum of 8 characters (example = '12345678')
Title:
is the title of the audio file with a maximum of 26 characters (example = 'Black Moon Rising')
Artist: is the song artist or other text appropriate for the file (max length 20 characters) (example = 'Credence')
Type:
a single character for the type of file ('M'= music, 'S'= spot, 'J'= jingle, etc)
Ext:
the file extension (.wav, .mp2, .mp3)
+:
the plus (+) sign must separate the various audio fields as shown
X T R E M E F O R T H E A R C - 1 5
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