INPUT
The INPUT menu item allows the appropriate audio input type to be
selected whether Analog or Digital and also allows independent input
gain adjustments to be made for each of the two input types.
DIGITAL
ANALOG GAIN
INPUT
SOURCE
DIGITAL GAIN
ANALOG
We strongly recommend that peak input audio levels are never set so
that they peak higher than about -12dBFS as shown on either the GUI
or the VP8’s front panel meters.
This is caution is necessary to allow appropriate headroom for the
processing algorithms when they are presented with material that has
been highly compressed and possibly also clipped during the mastering
process. Such material can achieve far higher peak levels after the
first stage of signal processing (in any modern audio processor, not
just Vorsis!) and those signals may not have enough headroom to
avoid clipping within the processor if the input level was already too
high.
Said another way, if you hear mysterious distortion or what sounds
like clipping on very loudly mastered material it’s a good idea to check
the input levels to the VP8 to ensure they are not spending any
significant time at levels of -12dBFS and above. GUI Lite has a “Ref”
indicator on its input level meter at the -12dBFS calibration mark as a
convenient reminder.
6
Summary of Contents for VP8 Plus
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