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Make-Up
Upward Compressor
Jünger Audio – Upward Compressor
reference
level
compression ratios
input
Downward
compression ratio
Upward compression ratio
Processing Profile
Downward Compressor
Threshold
Ratio
Knee
To set up the desired output level of the compressor, Make-Up Gain
(or attenuation) needs to be applied. This is a simple and static output
level adjustment without any dynamic content. In Auto mode the
amount of Make-up Gain is automatically determined depending on
the threshold and ratio settings. When set to manual, its value can be
set in steps of 0.1dB.
Reference Not to be confused with threshold, this
Level
Range
Ratio
An example ratio of 2:1 means that an input level of 4dB above
threshold will result in an output level of 2dB above threshold. In the
same way an input level of 8dB above threshold results in an output
level of 4dB above threshold and so on.
A ratio of 2:1 means that an input level of 4dB below reference level
will result in an output level of 2dB below reference level. In the same
way an input level of 8dB below reference level results in an output
level of 4dB below reference level and so on.
The timing characteristics of the compressor are generated adaptively
according to the incoming signal structure. The overall timing can be
set up from fast and responsive settings (lower numbers) to relaxed
settings (higher numbers) without detailed access to the actual micro
timings. The names behind some of the numbers may help to easily
find adequate values to your content. For profile "Manual" one may set
"Attack", "Release" and "Detection Speed".
Signals above threshold are processed, signals below pass
unaffected. Please be aware that this is only true when Knee
is set to '0'.
Please see ratio description in Upward Compressor section.
The Knee parameter allows the user to decide whether the transition
from linear to processed happens immediately at threshold (so called
hard knee) or if a transition range (soft knee) is applied in which the
ratio is steadily raised from 1:1 at the lower knee end up to the defined
ratio at the upper range (see picture).
56
D*AP4 VAP
parameter defines the turning point of the
response curve from upward to
downward compression (see picture).
When set to 0dBFS, the signal is
amplified according to the ratio and range
settings.
This defines the range over which
dynamic compression is applied as
defined by the ratio setting. Signals
outside this range are still reduced or
amplified but not altered in their dynamic
structure.
Determines the amount of gain reduction
by a selectable ratio. Although the same
in mathematical terms, understanding is
easier when differentiating between
upward and downward compression:
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