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11—Input and Track Channel Tools
160 www.rolandus.com Roland VS-2480 Owner’s Manual
5. AutoGain
AutoGain automatically boosts signals whose levels have been lowered by
dynamics processing so that they peak at -6 dB below 0 dB.
6. Attack
The Attack parameter—which can be set from 0.0 ms (milliseconds) to 800.0
ms—sets the speed at which gain reduction begins when a signal:
• goes above the threshold when you’re using a compressor.
• falls below the threshold level when you’re using an expander.
If you want to make sure your dynamics processor catches even the fastest peaks or
drops in the signal, make the attack fast by setting Attack to a low value. If you’re more
concerned with applying gain reduction to signals that stay above or below the
threshold for longer periods of time—with compression or expansion, respectively—
set Attack to a higher, longer value.
7. Release
The Release parameter sets how long gain reduction will be applied, and
can be set from 0 to 8000 ms. When your signal has a lot of quick changes in
level, set Release to a high enough value that you don’t hear the dynamics
processor switching on and off constantly. If you’re only interested in
managing a few isolated level changes in a signal, try a shorter, lower value.
8. Level
Dynamics processing often affects the overall level of a signal. Use the Level
parameter to re-adjust the signal’s level as it leaves the dynamics processor.
9. KeyIn
The KeyIn parameter lets you select a different audio source as a
trigger for your dynamics processor—the dynamics processor will
respond to level changes in the KeyIn signal, and apply those changes
to the current channel’s signal.
•
For input channels
—you can select any input channel’s signal.
•
For track channels
—you can select any track channel’s signal.
To de-activate the KeyIn feature, set the KeyIn parameter to the current channel.
AutoGain sets the signal to a maximum of -6 dB in order to leave a bit of headroom for
fast transient volume peaks that occur before the dynamics processor has a chance to
respond.
Adjust the setting of the Attack parameter to help soften the audible pumping that can
occur with a high Ratio value.
Adjust the setting of the Release parameter to help soften the audible pumping that
can occur with a high Ratio value.
If the channel is linked, you can select a separate KeyIn signal for both linked channels.
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