Od/Ds (Overdrive/Distortion) - Boss ME-33 Owner's Manual

Adding Effects
OD/DS (Overdrive/Distortion)
two major types, overdrive and distortion.
OD (Overdrive) OD, FAT, BLUES
DS (Distortion) DIST, METAL, FUZZ
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LEVEL 0-100
Adjusts the volume level when the effect is on.
Use this to achieve a volume balance when
switching the overdrive or distortion effects on and
off.
DRIVE 0-100
Adjusts the amount of distortion of the
sound.
The more the knob is turned to the right,
the deeper the distortion becomes.
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EFFECT
Choose the type you want from the following.
OD (Overdrive)
Gives a mild distortion, like that when an older
amp is overdriven.
FAT
Gives an even fatter overdrive sound.
BLUES
Overdrive effect that provides volume control
with no loss of picking nuance, from light, blues-
style distortion to sounds suitable for solos.
DIST (Distortion)
Provides a standard distortion sound applicable to
a wide range of musical genres.
METAL
A distortion sound offering a midrange tone
characteristic that is perfect for Hard Rock and
Heavy Metal.
FUZZ
Powerful distortion with a characteristic bass,
providing a heavy distortion sound great for
Grunge and Altemative music.
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TONE -50-+50
Adjusts the tone quality.
The more the knob is turned to the right of center, the
more the higher frequencies are boosted, providing a
crisper sound. Conversely, the more the knob is
turned to the left of center, the more the high
frequencies are suppressed, creating a softer sound.
FEEDBACK 0-100
COSM feedback modeling. Adding feedback is easy, even to low-volume
sounds. The more the knob is turned to the right, the more the effect
increases.
* Feedback modeling analyzes the pitch of the guitar input, then
generates resonance internally, within the ME-33. In other words, it
does not simply add sound that has been separately synthesized, but
instead, processes the guitar sound thoroughly, and then provides a
model of the conditions producing feedback. Thus, the effect may not
be exhibited to as full a degree when listening through headphones,
or when playing the sound at low volumes. Furthermore, in situations
where pitch is difficult to analyze, such as when chords are played, or
when the guitar is not being played at all, the feedback sound could
end up sounding like noise.