Grass Valley DAP-1781 - Manual (Page 53)

GUIDE TO INSTALLATION AND OPERATION
DAP-1781 | 53
4.10 RALM tab
This Remote Audio Level Meters feature allows
distant supervision of the audio levels present at the
eight outputs of the DAP-1781.
4.10.1 RALM Connections tab
CH1&2, CH3&4, CH5&6, CH7&8 – each radio
button turns the player ON or OFF for the pair of
channels.
Reset Counter – reset the overload counter to
zero. The counters are located on top of each
meter. See Overload Cursor in the Meter Ballistics
section for more information.
RALM Remote Control – To limit the data flow
required by the meters, each pair of meters can be
turned ON and OFF independently. Each checkbox
controls the transmission for 2 channels of RALM
data to the iControl server.
The Speed pull-down affects the refresh rate, the
default value is fast.
4.10.2 RALM – Meter Ballistics Config tab
Type – select a type of meter from the pull-down list
When using a digital input on an analog peak meter,
the test position is fixed at -24 dBFS. The 0 for the
VU meter is fixed at -20 dBFS.
Upper Zone Limits – select the crossover level
between the upper and middle zones of the meter
(the range of values shown in the pull-down list
depends on the meter type). The zone limits are in
dBu for analog meters and in dBFS for digital
meters
Lower Zone Limits – select the crossover level
between the middle and lower zones of the meter
(the range of values shown in the pull-down list
depends on the meter type). The zone limits are in
dBu for analog meters and in dBFS for digital
meters
Color samples – the three samples show the currently-selected color for the upper, middle and lower
zones of the meter.
Overload Counter - The overload cursor appears on the meter as an arrowhead in the meter scale. The
two pulldown boxes set the position of the overload cursor on the left and right meters. If the audio level on
that channel goes above the cursor, the Overload Counter at the top of the meter is incremented. The
Reset Counter box is available on the RALM - Connections tab.
Phasemeter – this is a small meter that represents the phase correlation factor. Nominal position is in the
center, which indicates also the absence of signal. The red side, up to the left end of the meter indicates the
level of phase opposition and the green side, up to the right end indicates the level of phase amplitude.