Omnia .9 Installation & User Manual page 88

FM MENU EXPERT MODE
The Ratio control determines how much the output audio will be increased or decreased in relationship to the input
♦
audio of the Input AGC section. For example, a ratio of 3:1 means for every 3dB of change in the level of the input audio,
the output will be changed by 1dB. Lower (looser) settings provide less control of the dynamics in this section but
provide a more open sound, while higher (tighter) settings provide more control at the expense of openness. The range
of this control is 1.0:1 to Infinity:1.
The Maximum Gain control works in conjunction with the Ratio control to determine how much gain is available below
♦
threshold. If the Input AGC Ratio is set at Infinity:1 and the Input AGC Maximum Gain is set to 36dB, the Input AGC has
36dB of range below threshold. At a ratio of 2.0:1 and the same Maximum gain setting, the range is reduced by half to
18dB. The scale to the left of the Input AGC meter automatically adjusts as needed when changes are made to the Input
AGC Maximum Gain or the Input AGC Ratio to accurately reflect how much range is available below threshold.
The Attack control determines the speed with which the Input AGC acts to reduce audio above threshold. Lower settings
♦
represent slower attack speeds and allow more audio to pass unprocessed by the Input AGC into subsequent processing
stages. Higher settings result in faster attack speeds and allow less unprocessed audio to enter subsequent sections.
Because all of Omnia.9's processing stages are to some extent program-dependent, putting actual measures of time on
these controls would be pointless, and so the numbers on the various Attack and Release controls throughout are simply
relative numbers.
The Release control determines the speed with which the Input AGC increases audio below threshold. Lower settings
♦
provide slower release speeds, while higher settings result in faster release speeds.
The Target control sets the target output level of the Input AGC. A lower setting results in a lower output level, while
♦
higher settings provide a higher output level. This is similar to a traditional "threshold" control when the levels are below
the target.
The Gate Threshold and Freeze Threshold controls work together to determine the points at which the release rate of the
♦
Input AGC slows by a factor of 3 (gate threshold) or freezes altogether (freeze threshold). The range of these controls is
-90dB to 0dB. Lower settings means the audio must drop to a lower level before the release speed slows or freezes. Higher
settings means the audio doesn't have to drop as much in level before the input AGC gain slows down or stops. Using
higher settings when employing faster Input AGC release speeds can keep the audio from being increased too quickly
or too much during quieter passages or pauses. If the display is sized and configured in such a way that the Input AGC
meter is shown vertically, a Gate condition will be indicated by a dim, dark red bar at the bottom of the meter. A Freeze
condition will be indicated by a brighter dark red bar.
CHAPTER 12 |
71