Grass Valley NV7512 v.1.3 - Manual (Page 87)

NV7512 Audio Router • User’s Guide 77
3. DSP Submodule
The DSP sub-module is a separate unit that can be installed on the crosspoint card. (See Crosspoint
Cards on page 24.) The DSP sub-module enables manipulation of audio input or output as follows:
• Gain Adjustment. The gain of incoming signals can be adjusted from -108 dB up to +12 dB in
increments of 0.1 dB .
• Phase Inversion. On occasion, incoming signals may be out of phase. Using the DSP sub-mod-
ule, signal polarity can be inverted. The polarity of each input channel may be independently
set to be non-inverted or inverted.
• Crossfade. The crossfade functionality allows for switching between signals by gradually
decreasing the value of one signal while simultaneously increasing the value of a second signal.
A crossfade takes approximately 85 milliseconds from start to finish.
• Channel Summing. Left and right channels of a signal can be combined so that the left channel
and right channel are identical, called channel summing. Because the channels are now twice
the level of the original channels, the channels are divided by 2 to return each channel back to
the original level.
The DSP sub-module effects only the signals being directly switched by the crosspoint card on
which it is installed. To implement DSP sub-module features, the module must be installed and
then configured using UniConfig. For more information, see
Installing the Module on page 78 and
Configuring the DSP Sub-Module on page 80.