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Chapter 14 Specialized eects and utilities 265
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Low Center knob and eld: Rotate to set the center frequency of the lower frequency band.
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Low Bandwidth knob and eld: Rotate to set the width of the lower frequency band.
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Dry slider and eld: Drag to set the amount of dry (non-eect, original) signal.
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Wet slider and eld: Drag to set the amount of wet (eect) signal.
SubBass use tips
Unlike a pitch shifter, SubBass generates a waveform that is not based on the waveform of the
input signal; instead it uses a sine wave. Given that pure sine waves rarely work well in complex
arrangements, make sure to use the Wet and Dry sliders to control the amount of—and balance
between—the generated and original signals.
Use the High parameters and the Low parameters to dene the two frequency bands that
SubBass uses to generate tones. High Center and Low Center dene the center frequency of each
band, and High Bandwidth and Low Bandwidth dene the width of each frequency band.
The High Ratio and Low Ratio knobs dene the transposition amount for the generated signal
in each band. This is expressed as a ratio of the original signal. For example, a Ratio value of 2
transposes the signal down one octave.
Important: Within each frequency band, the ltered signal should have a reasonably stable pitch
in order to be analyzed correctly.
In general, narrow bandwidths produce the best results, because they minimize frequency
intermodulations which can lead to unpleasant artifacts. Set the High Center knob value a fth
higher than Low Center, a factor of 1.5 for the center frequency.
Derive the sub-bass to be synthesized from the existing bass portion of the signal, and transpose
by one octave in both bands, using a Ratio of 2. Do not overdrive the process or you will
introduce distortion. If you hear frequency gaps, move one or both Center frequency knobs, or
widen the Bandwidth of one or both frequency ranges a little.
Tip: Be prudent when using SubBass, and compare the extreme low frequency content of
your mixes with other productions. It is very easy to over-enhance the low end of some tracks,
resulting in an unbalanced mix.