
crystal User Manual
Version: 6.6.0/2
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10. Audio Mix Engine
10.9.4
Metering in VisTool
Channel PPM
Channel State
PGM VU
PGM PPM + Loudness
VisTool supports both PPM and VU meters which can link to specific channels, main meters, to the source in
access or be freely-configurable (via the "DMS" option). In addition, there are a number of add-on elements
which can be used to visualize channel states, display gain reduction, show the stereo audio correlation and
measure loudness. The metering elements can be used stand-alone or combined as described in the examples
below.
Use the PPM element in VisTool Editor to configure the components. Loudness metering is configured separately
using the Loudness element.