ART Pro Audio Quadra/Fx - Two Channel Effects Processor - Manual (Page 59)

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on its high value. In the case of tremolo, low and high LFO values correspond to low and high volume
levels.
A Threshold setting of is available to disengage all dynamics sensing.
When the Ambient Tremolo is selected, the Special parameter sets the Difference Factor. This parameter
determines how much difference information (from a stereo mix) is processed by the Ambient algorithm.
The Difference Factor range is from 0 to 60. Normally, this parameter should be used at its highest setting
(60), to only process the difference material. At low settings, the effect processes the full mix (made up of
both difference and center information). Low settings help to strengthen the effect on material that has a
weak, or mostly mono, image.