User guide

CONFIGURATION FILE
PAGE 10 AMIS-DMA1 INSTALLATION & OPERATION MANUAL
4.6 Audio adjustment parameters
The DMA1 allows for the following audio adjustments:
• Independent adjustments of the MP3 fi le level, line level audio input
volume and general amplifi ed/line level output volume
• Adjustment of loudness level
• Separate adjustment of bass and treble tone control
• Adjusting the level of the background music while delivering
commercials/spot announcements
• Activation/deactivation of power amplifi er muting mode
The following tables show the relation between the value set in the
confi guration fi le and the actual value of the audio parameter.
MNEMONIC DESCRIPTION
LMP3 MP3 decoder output level (value between 0 and 20 in decimal)
LOUT Main audio output volume (line level outputs and amplifi ed audio outputs) (value between 0 and 20 in decimal)
LLIN Line level input volume when no MP3 are playing (value between 0 and 20 in decimal)
LLI2 Line level input volume during the playback of MP3 fi les (value between 0 and 20 in decimal)
LLOU Loudness level (value between 0 and 20 in decimal)
LTRE Treble tone control (value between 0 and 20 in decimal)
LBAS Bass tone control (value between 0 and 20 in decimal)
MOMD Power amplifi er muting mode (0=OFF/1=ON ).
LMP3 (MP3 DECODER OUTPUT LEVEL)
VALUE 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
LEVEL
OFF 2% 5% 9% 14% 20% 26% 33% 40% 48% 56% 66% 77% 88% 100% 112% 128% 144% 161% 178% 200%
0dB +6dB
LOUT (MAIN AUDIO OUTPUT VOLUME FOR LINE LEVEL AND AMPLIFIED AUDIO OUTPUTS)
VALUE 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
LEVEL OFF
-55 -35 -28 -23 -20 -17 -14 -12 -10 -8 -6 -4 -2 0 +2 +4 +6 +8 +10 +12
dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB
LLIN (INL/INR VOLUME WHEN NO MP3 IS PLAYING)
VALUE 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
LEVEL OFF
-55 -35 -28 -23 -20 -17 -14 -12 -10 -8 B -6 -4 -2 0 +2 +4 +6 +8 +10 +12
dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB
LLI2 (INL/INR VOLUME DURING THE PLAYBACK OF MP3 FILES (BACKGROUND MUSIC))
VALUE 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
LEVEL OFF
-55 -35 -28 -23 -20 -17 -14 -12 -10 -8 -6 -4 -2 0 +2 +4 +6 +8 +10 +12
dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB
LLOU (LOUDNESS LEVEL)
VALUE 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
LEVEL
0 +0,5 + 1 +1,5 + 2 +2,5 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 +11 + 12 + 13 + 14 + 15 + 16 + 17
dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB
LTRE (TREBLE TONE CONTROL)
VALUE 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
LEVEL
-12 -10 -8 -7 -6 -5 -4 -3 -2 -1 0 + 1 + 2 + 3 + 4 + 5 +6 +7 +8B +10 +12
dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB