Roland Edirol M-100FX Mode D'emploi page 112

Removing noise
6.
Set effect knob A to the center position.
fig.modify-1
Set to
the
center
7.
Turn the effect balance knob all the way toward FX (right).
8.
Play back your cassette tape, and move effect knob B. Set effect knob B to
the point at which the noise is removed from silent portions of the program
material.
112
Set to
FX
Be aware that if you turn
effect knob B too far
toward the right, even
desired sounds may
disappear.