Equalizer; Noise Suppressor; Delay - Roland SD-90 Effects Manual

Audio multi-effects
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Audio Multi-Effects

Equalizer

Adjusts the tone.
EQ SW (switch)
Off, On
Switches the equalizer effect on/off.
EQ Low (low gain)
-12 – 0 – +12 db
Adjusts the low frequency range tone.
EQ High (high gain)
-12 – 0 – +12 dB
Adjusts the high frequency range tone.

Noise Suppressor

The noise suppressor leaves the original sound unmodified, but mutes only the noise during the silent intervals.
NS SW (switch)
Off, On
Turns the noise suppressor effect on/off.
NS Thrsh (threshold level)
0 – +16 – +127
Adjusts the level at which the noise suppressor will begin to take effect. When the signal drops below the
specified level, it will be muted.

Delay

The delay effect adds delayed sound to the direct sound, giving more body to the sound or creating special effects.
DL SW (switch)
Off, On
Turns the stereo delay effect on/off.
DL Time (delay time)
1 – 250 – 370 ms
Adjusts the delay time (i.e., the interval for which sound is delayed).
DL Fbk (feedback)
-98 – +32 – +98 %
Adjusts the amount of feedback. Changing the amount of feedback causes the number of time the delayed sound
is repeated to change as well.
DL HF (HF damp)
200 – 8000, Byps
Adjust the degree of HF damping. With a setting of 0, there will be no damping. As the value is decreased,
damping will become more pronounced.
8
(200 = 1, Byps = 0)

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