TC Electronic DB6, Руководство пользователя

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LM6
58 DB6 Single / Multi / AES – Firmware version 1.30
is, in Loudness Units on the absolute scale. This
is the normal setting for the Loudness Unit pa-
rameter, which we recommend for most applica-
tions.
Loudness Range is always shown in units of LU,
because it is basically a measurement of ‘range’
or of the distance between a high and a low
loudness level.
LU setting
With this setting, measurements of program
loudness and sliding loudness are shown in units
of LU – that is, in Loudness Units on a
relative
scale. The 0 LU is by definition the target loud-
ness level, such as -23.0 LUFS. So by selecting
“LU”, one can immediately see if a loudness level
is above the target level (e.g. +1.2 LU) or below
(e.g. -3.4 LU).
LM6 – Setup page
LM6 Setup page
Radar page section
Momentary Range parameter
Settings: “+9 Scale” or “+18 Scale”
EBU mode meters can display two different mo-
mentary displays:
+9 Scale setting
The +9 Scale setting provides a narrow loudness
range intended for normal broadcast. It gives a
momentary meter range from -18 to +9 LU.
+18 Scale setting
The +18 Scale setting provides a wide loudness
range intended for film, drama and wide range
music. The It gives a momentary range from -36
to 18 LU.
Radar Speed parameter
Range: 1 minute to 24 hours
The Radar Speed parameter controls how long
each revolution of the Radar display takes. You
may “zoom” between the settings during run-
time, as long as the history isn’t reset.
Pressing the Reset button on the Radar page will
reset meter and descriptor history.
Radar Resolution parameter
Range: 3 to 12 dB/div
The Radar Resolution parameter sets the differ-
ence in loudness between each concentric circle
in the Radar display. Choose a low value when
targeting a platform with a low dynamic range
tolerance. You may “zoom” between the set-
tings, as long as the history isn’t reset.
Low Level Below parameter
Range: -30 to -6 LU
The Low Level Below parameter determines
where the transition between the green and blue
range occurs in the outer ring. It indicates to the
engineer that the signal level is now at risk of be-
ing below the noise floor.
Alert Indicator parameter
Stereo Integrity setting
When the Alert Indicator parameter is set to Ste-
reo Integrity, the red Alert indicator on the Radar
page will indicate a lack of stereo integrity based
on measuring the difference of left/right inputs. If
there is a consistent difference between left and
right over a prolonged time, the LED is lit.
5.1 Integrity setting
When the Alert Indicator parameter is set to 5.1
Integrity, the red Alert indicator on the Radar
page will indicate a lack of integrity based on the
signal levels on L, R, C, LS and RS channels. If
one or more of the channels drop out over a pro-
longed time, the LED is lit.