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Table Of Contents
Filter Type buttons: Switch the Filter between lowpass, highpass, bandpass or
band-rejection filter types. See Choosing the Ultrabeat Filter Type (LP, HP, BP, BR).
Filter Slope buttons (12 and 24): These buttons switch the filter between different slopes.
See Setting the Ultrabeat Filter Slope,
Cutoff and Resonance knobs: Determine the cutoff/center frequency and
resonance/bandwidth of the filter. See Using Ultrabeat’s Filter Cutoff Parameter and
Using Ultrabeat’s Filter Resonance Parameter.
“Mod” and “via” menus: Determine the modulation source (and via source) for the Cutoff
and Resonance parameters. See Working with Modulation in Ultrabeat.
Choosing the Ultrabeat Filter Type (LP, HP, BP, BR)
Ultrabeat’s filter can operate in several modes, allowing specific frequency bands to be
filtered (cut away) or emphasized.
Filter type buttons
Filter slope buttons
Select one of the following buttons to choose a filter type:
LP (lowpass): This filter type allows frequencies that fall below the cutoff frequency to
pass. When set to LP, the filter operates as a lowpass filter. The slope of the filter can
be set to 12 or 24 dB/octave in LP mode.
HP (highpass): This filter type allows frequencies above the cutoff frequency to pass.
When set to HP, the filter operates as a highpass filter. The slope of the filter can be set
to 12 or 24 dB/octave in HP mode.
BP (bandpass): The frequency band directly surrounding the center frequency (set with
the Cutoff knob) is allowed to pass. All other frequencies are cut. The Resonance
parameter controls the width of the frequency band. The bandpass filter is a two-pole
filter with a slope of 6 or 12 dB/octave on each side of the center frequency of the band.
BR (band-rejection): The frequency band directly surrounding the center frequency (set
with the Cutoff knob) is rejected, while the frequencies outside this band can pass. The
Resonance parameter controls the width of the rejected frequency band.
269Chapter 11 Ultrabeat