Digital Matrix; Automixer Cell; Power Of The Mix; Crosspoint Gain - Lectrosonics DM1612 Reference Manual

DM Series Digital Matrix Processors

Digital Matrix

The digital matrix provides signal routing and communi-
cation with other devices in the system, and applies
automatic mixing and level control. A single crosspoint
is shown here to illustrate the elegance of the matrix.

Automixer Cell

This is the core of the matrix where data is gathered
from other channels and devices to apply level control
for the automatic mixing algorithm, the mixing mode and
the selected crosspoint gain. The cell receives data
from the master unit in a multi-unit stacked configuration
and the slave units farther down in the chain.

Power of the Mix

This is the reference used to determine the gain to be
applied to each individual output channel. In a multi-unit
stacked configuration, this data is sent to the slaves
from the master unit.

Crosspoint Gain

This is the gain selected with the LCD interface or the
GUI that determines the level that will appear at the
output.
12
Power of the Mix
Audio Input
Power of the
Submix
Automixer
Cell
Power of the
Submix

Mixing Mode

- Auto
- Direct
- Override
- Background
One of 384 Matrix Crosspoints
Mixing Mode
The automatic mixing algorithm applies a patented gain
proportional algorithm* that allows each input assigned
to a particular crosspoint to behave differently relative to
the other inputs assigned to the crosspoint.
Four different modes are available:
Auto - In automatic mode the input applied to the
crosspoint is mixed into the output channel using the the
Adaptive Proportional Gain automixing algorithm in the
normal manner. This is the most common setting.
Direct - In Direct mode the automixing algorithm is
bypassed.
Override - Override mode is selected when it is re-
quired that the input applied to the crosspoint always
dominates the output channel when it becomes active.
Background - Background mode is selected when it is
required that the input applied to the crosspoint domi-
nates the output channel only when all other inputs are
inactive.
Submix
+
Submix
Crosspoint Gain
-70 to 20 dB
1 dB steps
* US Patents 5,414,776 and 5,402,500