Section 32: Outputs Tab
T
ieline
Page 280
T E C H N O L O G Y
+4 dBu
(0 vu reference level)
-0 dBu
(-4 vu reference level)
Figure 88: Diagram Showing Codec Headroom
The preceding diagram shows the amount of operating headroom the codec
has. If you put 0 vu into the codec, when the codec input digipot is set at the
one o’clock position, the nominal operating reference level is 0 vu. An
additional 15 dB of gain is available via the digipot from this reference
position.
IGC
(Intelligent Gain Control) on the inputs, if enabled, is activated at +14
dBu.
IGC
is enabled as a default for the manual default profiles. (Related
topic: Intelligent Gain Control, Input Gains)
Figure 89: The LCD Screen of the COMMANDER G3 Field Unit
In the example above,
PPM1
is the only channel of the codec that is metering
an audio signal at this time.
17 dBu headroom before clipping