Noise Suppressor; Chorus/Flanger - Roland SD-90 Effects Manual

Audio multi-effects
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EQ MidG (middle gain)
-12 – 0 – +12 dB
Adjusts the middle frequency range tone.
EQ High (high gain)
-12 – 0 – +12 dB
Adjusts the high frequency range tone.
EQ Total (total gain)
-12 – 0 – +12 dB
Adjusts the volume.

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 – +4 – +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.

Chorus/Flanger

Chorus:A sound with a subtly shifted pitch is added to the direct sound, making the final output sound thicker
and broader.
Flanger:The flanging effect gives a twisting, jet-airplane-like character to the sound.
CF SW (switch)
Off, On
Turns the chorus or flanger effect on/off.
CF Type (type)
Cho, Fln
Select the type of effect.
CF PreDly (pre delay)
0.1 – 15.0 – 30.0 ms
Adjusts the time needed for the effect sound to be output after the direct sound has been output. By setting a
longer Pre Delay time, you can obtain an effect that sounds like more than one sound is being played at the same
time (doubling effect).
CF Rate (rate)
0.05 – 0.85 – 10.0 Hz
Adjusts the rate at which the chorus is modulated.
(0.05 = 1)
Audio Multi-Effects
3

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