Table of Contents
Advertisement
D*AP4
Link
Spectral Signature
Adaption Speed
Adaption Grade /
Response
Relative Gate
Threshold (dB)
Max Loudness
Boost (dB)
White color represents the selected program while orange represents
the second program. If you select program 2 for example it becomes
white while Program 1 becomes light green:
Graph Permanently
Visible
[Unlinked, Linked]
For stereo operation you may link the setup parameters
[ON / OFF]
[0 / 2 Mid / 3 / 4 Fast]
This parameter affects the time taken for the bands to reach their
target values. Fast settings even out differences between sources,
but can lead to audible transitions.
They are well suited for single channel signals, for example to even
out sound differences due to movement in front of a microphone.
Slower settings remain unobtrusive, but cannot bring down
differences very quickly. They are suitable for mixed content or buses
with varying content. The overall spectrum remains well balanced
without drastic sonic changes.
[Soft / Mid / Hard]
In order to achieve a stable and natural behavior, the intensity of the
gain change needs to process according to a response curve. This
curve is defined by a ratio. A high ratio means that a difference of 5
dB results in a gain change of almost the same amount. A low ratio
means that the actual gain applied is lower. A ratio of 2:1 would bring
the amplification up to 2.5dB in this example. The max gain value is
applied after the ratio calculation. As these ratios are not static, they
have been combined into three preset responses. The average ratio
increases from 'soft' to 'hard'.
[-10 .... -14 ... -20 / OFF]
To prevent a band from amplifying noise (especially hum), a relative
gate can be set. If the energy within one band is lower than this gate,
no amplification will take place. This is especially useful, when mixed
content with highly varying frequency response is processed (for
example a radio station output with alternating presenter voice and
music).
[0.0 ... 1.5 ... 12.0]
The human hearing is not a linear system. When levels get low,
humans perceive less bass within the signal and the sound becomes
subjectively thin and tiny. This phenomenon is well known and
documented as the 'equal loudness contours'. By setting up Max
Loudness Boost the system compensates for this difficulty of the
human perception and raises the bass bands as levels decrease.
Our intelligent system compensates the frequency response
independently from the absolute playback level. Max Loudness Boost
is the amount of gain that the system is allowed to build up, not a
static gain value. We suggest to experiment with a start setting of 4.
47
The color code of the column
headers will change
depending on the program
selected for gain change (see
upper display). White color
represents the selected
program. If you select program
2 for example it becomes
white while Program 1 is
colored light green.
Advertisement
Table of Contents
