CHAPTER 11
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FM MENU INTERMEDIATE MODE
Multiband AGC
There are 3 sections to the Multiband AGC control page: Main, Level and Speed. The buttons on the left of the screen allow you
to navigate between pages.
MB AGC Main
♦ 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 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 Progressive Release control determines the degree to which the Multiband compressor releases its gain at a faster
rate when the audio is driven further toward or into gain reduction. At a setting of 0, the control has no effect and
the Release speed control fully determines the rate of release both below and above threshold. Increasing the setting
progressively makes the release speed of the audio faster as gain decreases.
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