Meter Types; Ppm Or Vu; Fader Meters - Calrec SUMMA User Manual

METER TYPES

Summa meter types and ballistics can be set globally within System Settings. Available meter options are shown
in the following table:
M
Meter Type
PPM
PPM
PPM
PPM
VU
VU
VU
Fader, group and main meters all include integrated dynamics meters for both Dynamics 1 and Dynamics 2 modules.
Each dynamics meter displays a small 'C' (compressor/limiter) and 'G' (expander/gate) below, which illuminate as the
modules are enabled.
All Summa meters include a peak-spot-on meter bar which remains for a short time to make peak monitoring more
accurate. If a signal reaches the clipping point, the meter background turns red and holds for the peak spot duration,
then fades out over one second, letting you trace overloads very easily.

PPM or VU?

VU (Volume Unit) meters use the amplitude and duration of signals to provide an indication of the perceived loudness of a
program. PPM (Peak Program) meters have short attack and long fall-back times in order to give an indication of the peak
amplitude of an input signal.

Fader Meters

Each fader on the Summa surface has a dedicated fader meter displayed on the meter panel above it, along with a small
input meter bar in the fader display. The border of each fader meter is shaded to match its attached path type, to ease
identification. Fader meters provide a wide variety of essential information from routing to processing and CUT/ON status.
When a fader cap is touched the corresponding meter background is highlighted with a slightly paler shade of grey.
When the fader's ACCESS button is pushed, the label along the bottom of the fader meter becomes highlighted with the
correct path colour to clearly draw attention to it.
116 SUMMA
Networked Audio Production System
Color Break
8 dB/20 dB
9 dB/15 dB
10 dB/18 dB
12 dB/18 dB
8 dB/20 dB
12 dB/20 dB
0 dB/20 dB
METERING