Setting Audio Levels - Extron electronics DMP 128 User Manual
Digital matrix processor
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Also See for DMP 128:
- User manual (205 pages) ,
- Setup manual (4 pages) ,
- Setup manual (4 pages)
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setting audio Levels
The audio dB to SIS command conversion values in table 2 beginning on the next page,
are the same for all signal level blocks. However, the minimum and maximum levels differ
depending upon the individual level control. The following table can determine those
minimum and maximum levels for the individual controls. Once the range and a value
within that range is selected, table 2 is used to find the SIS value for the desired dB level.
SIS
X6!
Alternately, the following formula is used to convert a desired dB value into the proper SIS
command:
(Desired dB x 10) + 2048
Examples:
SIS value for 0 dB:
•
(0 x 10) + 2048 = 0 + 2048 = 2048
SIS value for +7.0 dB:
•
(+7.0 x 10) + 2048 = 70 + 2048 = 2118
SIS value for +22.5 dB:
•
(+22.5 x 10) + 2048 = 225 + 2048 = 2273
SIS value for -12.0 dB:
•
(-12.0 x 10) + 2048= -120 + 2048 = 1928
Title
Function
Attenuation/Gain
Mic/line gain (
a
)
Attenuation/Gain
Pre-mixer gain (
b
)
Attenuation/Gain
Virtual return gain (
c
)
Attenuation/Gain
Post-mixer trim (
d
)
Attenuation
Output volume (
e
)
Range
–
18.0
–
100.0
–
100.0
–
12.0
–
100.0
DMP 128 • SIS Programming and Control
to +
dB
80.0
to +
dB
12.0
to +
dB
12.0
to +
dB
12.0
to +
dB
0.0
148
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