8
E-MU Systems
RFX-32
RFX Flanger
Note that the various “alternate” cancellation modes set
by the Flange Mode parameter will generally not be
perceptible until the Flange Mult parameter is greater
than 1 and more flanging stages are employed. Varia-
tions of the Flange Mult and Flange Mode parameters
can create a wide variety of different flanging sounds.
The exact effect of the Flange Mult parameter depends
greatly on the I/O mode selected.
• In Mono I/O mode
, the Flange Mult parameter controls
the number of flange stages used in series between the
input and output. To hear the effect of Dual sweep
shapes, the Flange Mult value must be greater than 1
when in Mono mode.
• In Mono/Stereo & Stereo I/O modes
, the Flange Mult
parameter controls the number of stages as well as the
notch patterns produced by the flanger. Again, higher
multiplier values produce more “extreme” effects. Dual
sweep shapes are always applied in these Stereo output
modes, regardless of the Flange Mult value.
Flange Mode
This parameter controls the type of cancellation
produced at the various stages of the flanger. In
conjunction with the Flange Mult parameter, it can
produce widely varying flanging effects. When set to
Positive, all flanging stages use positive cancellation,
producing a “rounded” flanging sound; when set
Negative, using all negative cancellation produces a
more “hollow” effect.
When set to parameter values from “Alt 1” through “Alt
6”, various patterns of alternating polarities are applied
to different stages of the flanger. Note that these
different patterns may or may not be perceptible until
higher values of the Flange Mult parameters are used
and additional flanging stages are employed.
O
O
O
O
In “Delay Only” mode
the Wet/Dry Mix control can be
used to manually control the
amount of flanging.
Flange cancellation is eliminated entirely when the
Flange Mode is set to Delay Only. In this mode the
input signals are processed straight through the flanger
delay lines without encountering the spectral effects of
cancellation with undelayed signals.
(Note that the pitch
shift produced by the sweeping delays and the shifting
resonances produced by high feedback values will still be
heard.)
When used in Stereo output modes, this Flange
Mode setting is useful for producing subtle spatial
effects at low delay ranges and “double tracking” effects
at higher delay ranges. Because the flange stages are
connected in series, the effects of the Delay Only setting
may be difficult to hear in Mono mode.
