TC Electronic DB6, Manual

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Loudness Wizard
50 DB6 Single / Multi / AES – Firmware version 1.30
Correction parameter
Use the Correction parameter to set how much
of a difference between the actual signal level
and the Target level is corrected. Correction is
limited by the settings of the Max Reduction and
the Max Boost parameters on the ALC page. For
loud signals, the Stridency Reduction parameter
overrules the Correction parameter.
Stridency Reduct. parameter
Stridency Reduction is an adaptive loudness
control that only has effect for loud signal above
Target Level. The parameter is limited by the
setting of the Max Reduction parameter on this
page. Available settings are „Off“, „Soft“, „Uni-
versal“ and „Extra“.
Slow Window parameter
The „slow window“ is an area around the set Tar-
get Level. Within the slow window, loudness is
controlled only gently. When the signal exceeds
the limits of the slow window, Loudness is treat-
ed more radically. Use the Slow Window param-
eter to define the size of this window.
E.g., a setting of 10 dB means that the slow win-
dow is a range of ±5 dB around the current set-
ting of the Target parameter.
Freeze Level parameter
Use the Freeze Level parameter to set a level
below which a Gain Boost is gradually revoked.
This parameter can be used to avoid boosting
signals meant to remain below the noise floor of
a certain broadcast platform. The Freeze Level
parameter relates to the Target Level parameter
on the ALC page. For instance, if Target Level is
set at -21 LFS, and Freeze Level is set at -15 dB,
positive gain (if enabled) will be gradually nulled
when level falls below -36 LFS.
Freeze Hold parameter
Use the Freeze Hold parameter to set the time
(in seconds) before the processor resets to 0 dB
gain change once the level falls below Freeze
Level.
Pre Process parameter
Use the Pre Process parameter to specify wheth-
er or not a program has already been normal-
ized. Currently available settings are “Not nor-
malized”, “Universal” and “Normalized”. As new
DB6 software versions are released, more set-
tings for this parameter will be added, based on
real-world measurements at various stations and
on a global database.
Loudness Wizard – Limit page
Loudness Wizard – Limit page
Pre Limit Gain section
All gain parameters in this section are applied
after the ALC section module, but before the
output limiter.
Center Trim parameter
Use the Center Trim parameter to gain trim for
the Center Channel. This parameter can be used
for true-peak protected level conversion. The de-
fault setting is 0.0 dB.
Lateral Trim parameter
Use the Lateral Trim parameter to gain trim for all
L and R channels. This parameter can be used
for true-peak protected level conversion. The de-
fault setting is 0.0 dB.
LFE Trim parameter
Use the LFE Trim parameter to gain trim for the
LFE channel. This parameter can be used for
true-peak protected level conversion. The de-
fault setting is 0.0 dB.
True-Peak Limit section
Threshold parameter
Use the Threshold parameter to set the true-
peak limit threshold. The value set here is rela-