ART Pro Audio Quadra/Fx - Two Channel Effects Processor - Manual (Page 60)

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PANNER
The Panner is a stereo effect that alternately raises and lowers the volume of
the left and right channels. The Low Frequency Oscillator (LFO) Speed
determines the rate of change and the LFO Shape determines the pattern of
volume change. Since this is a stereo effect, it is not available in Discrete 4
(mono) routing. Some of the Panner classes have dynamics sensing, which
can use input level to switch the effect in and out or trigger the LFO.
PANNER CLASSES:
Vocal
The Vocal Panner is the traditional panning effect with the addition of dynamics sensing, which can be used
to fade the effect in and out when the Threshold level is crossed. Threshold is set with the Special parameter
and Decay sets the effect’s fade times.
Instrument
An Instrument Panner recreates the sound of the “classic” panner. As LFO Speed is increased, Width is
automatically adjusted to emulate the musicality of classic analog circuitry.
Concert
The Concert Panner is full-featured with completely independent control over LFO Width and Speed.
Gated
The Gated Panner is the Instrument effect with the addition of dynamics sensing, which can be used to duck
the effect in and out depending on the Threshold level. Threshold is set with the Special parameter.
Ambient
The Ambient Panner is a “spatial” effect that can pan the difference information in a stereo mix. Difference
information is the part of a mix that does not occur equally in both of the stereo channels, often such as
guitars, backing vocals, and reverb tails. Instruments like lead vocals, bass, and some drums are often mixed
to the center, creating the common information (common between the left and right channels). This algorithm
processes either the difference information or the full mix (consisting of both difference and common
information), depending on the Difference Factor setting (see the Special parameter below). Try Factory
Preset #84 with your favorite CDs and then on your own stereo tracks or mixes.
Dynamic
A Dynamic Panner will trigger the LFO through one cycle of its sweep when the input signal crosses above
the programmed Threshold level. When the input signal crosses back, the LFO is reset and will trigger again
the next time the input signal crosses over the Threshold level. Threshold is set with the Special parameter.