User Manual
11
Peak Reading Bargraph Meter
A 10-segment LED bargraph meter with peak detection and a
separate overload indication LED, suitable for use in today’s
modern digital recording environment.
6dB per segment in the lower region of the meter (-36 to -18dB)
and 4dB per segment in the middle region (-18 to -6dB) with 2dB
per segment in the top region of the meter for greater resolution.
0VU is the centre of the scale and calibrated to a nominal
operating level of +4dBu, which in turn is relative to a typical
EBU calibration of +18dBu = 0dBFS.
As such the bargraph meter scale on Control 2802 is calibrated
in dBFS, such that +4dBu = 0VU = -14dBFS. Therefore, a
nominal operating level of 0VU will result in 14dB of headroom in
your digital recording platform (providing your AD/DA converters
are aligned to 0dBFS = +18dBu.
14dB of headroom is very useful as most music sources
(except for the huge dynamic range of an orchestra) have
crest factors (the difference between average [RMS] and
peak level) of around 12-20dB.
Channel Meter Global Select – (MTR)
This switch is located in the centre section of the console below
the main mix and compression gain reduction metering.
This globally alters the source to the peak reading bargraph
meter at the top of each channel strip. Note that this can be
overridden if using the meters to display DAW channel metering
values in control surface operation (DAW Meters function).
In the UP position, the channel input path feeds the meter, taken
beforethechanneltrimcontrol(9)butafterthemic/lineandDAWip
(4 & 8) routing selections. When engaged into the DOWN position,
the meter takes its feed from the the direct output feed. Thus, its
exact location is determined by the routing selections made in the
direct output assign section (7) – see later in this chapter.