Australian Monitor DMA1 - Manual (Page 15)

S C H E D U L E D O P E R AT I O N
PA G E 1 5 A M I S - D M A 1 I N S TA L L AT I O N & O P E R AT I O N M A N U A L
5.1 Introduction to timed operation
When the fl ash memory card is inserted, the DMA1 will analyse its “
contents and – depending on the fi les which are present – will
automatically set the mode of operation.
In the presence of the PALIN.TXT fi le, the DMA1 plays the sequence of MP3
fi les in a cyclical emission (one hour cycles) called PALIMPSEST which are
contained in the same PALIN.TXT fi le.
5.2 The palimpsest fi le – palin.txt
The DMA1 can manage a list of MP3s to be played according to pre-set
time intervals. This list is a simple text fi le (palin.txt) which contains a
number of time events along with a sequence of MP3 fi les to be played for
each specifi c time event.
There are a few simple rules on how to set the palimpsest; fi rstly the time
for an event must be defi ned in minutes. Eg: 00:10
NOTE: It is very important to start a new line of text for each event,
and to separate the hours from the minutes using the (:) character.
On the same line the names of the MP3 audio fi les to be used (and their
sequence) must be defi ned (max. 8 characters).
There are three different acceptable formats for separating multiple MP3
fi lenames for each event
1. Separating character [Tab] between one MP3 and the next:
E.g.: 00:10 spot01 spot02 spot03
2. Comma (,) between one MP3 and the next:
E.g.: 00:10,spot01,spot02,spot03
3. Semicolon (;) between one MP3 and the next:
E.g.: 00:10;spot01;spot02;spot03
00:00 SPOT04 SPOT07
00:05 SPOT09 SPOT17
00:10 SPOT11 SPOT02
00:15 SPOT01 SPOT08 SPOT03 SPOT06 SPOT05
00:20 SPOT12 SPOT03
00:25 SPOT16 SPOT17
00:30 SPOT09 SPOT10
00:35 SPOT05 SPOT11 SPOT12 SPOT13 SPOT14
00:40 SPOT02 SPOT11
00:45 SPOT04 SPOT07
00:50 SPOT02 SPOT11
00:55 SPOT09 SPOT11
Once the confi guration has been completed, the fi le will appear similar to the following example:
EXAMPLE OF PALIN.TXT FILE WITH
CYCLICAL
EMISSION AT INTERVALS OF 5 MIN-
UTES
OF COMMERCIAL SPOTS
An example of the reading and functioning of a timetable is provided below:
00:05 SPOT05 SPOT11 SPOT12
00:11 SPOT01 SPOT07 SPOT03
In this case the DMA1 remains in standby for 5 minutes from the moment it
is turned on. At the 5th minute the DMA1 fades out the external line level
audio input source in order to play the 00:05 time event, composed of 5
MP3 fi les.
Once the time event has fi nished playing Spot05, Spot11, Spot12, Spot13
and Spot14, the DMA1 fades the external line level audio input back in.
Upon reaching the 11th minute the DMA1 fades out the external line level
audio input source and plays the 00:10 time event, composed of
3 MP3 fi les.