Lo-Fi Processor; Filter - Roland SD-90 Effects Manual

Audio Multi-Effects

Lo-Fi Processor

This cuts the high and low frequency range, and the frequencies for each range are freely adjustable. Or this
produces natural distortion like that obtained with older audio equipment or an AM radio. It's ideal for creating
lo-fi sounds.
LF SW (switch)
Off, On
Turns the lo-fi saturator effect on/off.
LF Drive (drive)
0 – +8 – +127
Adjusts the amount of distortion.
LF Low (low cut)
UnLim, 40 – 1000 Hz
Adjusts the frequency above which the effect cut the high frequency range.
LF High (high cut)
1000 – 8000 Hz, UnLim
Adjusts the frequency below which the effect cut the low frequency range.
LF Gain (gain)
-12 – 0 – +12 dB
Adjusts the output gain.

Filter

This adjusts the brightness of the sound. You can significantly change the frequency response of the input sound
to brighten or darken the tone, or to add a unique character.
FT SW (switch)
Off, On
Turns the filter effect on/off.
FT Cutoff (cutoff frequency)
0 – 64 – +127
Adjusts the cutoff frequency.
FT Reso (resonance)
0 – 96 – +127
Determines the amount of resonance. Increasing the value will emphasize the effect, creating a more unusual
sound.
FT Accl (acceralation)
0 – +12 – +15
When adjusting FT Cutoff or FT Reso in real time, this determines the amount of time that is to pass before the
effect kicks in.
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