Roland TD-30 Owner's Manual Page 76

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Eects
76
AUTO WAH
Cyclically controls a lter to create cyclic change in timbre.
Parameter Value Explanation
Filter Type LPF, BPF
Type of lter
LPF: The wah eect will
be applied over a wide
frequency range.
BPF: The wah eect will
be applied over a narrow
frequency range.
Manual 0–127
Adjusts the center
frequency at which the
eect is applied.
Peak 0–127
Adjusts the amount of the
wah eect that will occur
in the range of the center
frequency.
Set a higher value for Peak
to narrow the range to be
aected.
Polarity UP, DOWN
Sets the direction in which
the frequency will change
when the auto-wah lter
is modulated.
UP: The lter will
change toward a higher
frequency.
DOWN: The lter will
change toward a lower
frequency
Rate 0–127 Frequency of modulation
Depth 0–127 Depth of modulation
LO-FI COMPRESS
This is an eect that intentionally degrades the sound
quality for creative purposes.
Parameter Value Explanation
PreFilter TYPE 1–3
Selects the type of lter
applied to the sound
before it passes through
the Lo-Fi eect.
Lo-Fi TYPE 1–9
Degrades the sound
quality. The sound quality
grows poorer as this value
is increased.
Post Filter
Type
OFF, LPF, HPF
Type of lter after it passes
through the Lo-Fi eect
OFF: no lter is used
LPF: cuts the frequency
range above the Cuto
HPF: cuts the frequency
range below the Cuto
Post Filter
Cuto
200–8000 Hz
Basic frequency of the
Post Filter
Gain Low -15–+15 dB Gain of the low range
Gain High -15–+15 dB Gain of the high range
DISTORTION
Intensely distorts the sound. The tone quality of the
distorted sound is adjusted with a lter.
Parameter Value Explanation
Pre HPF
BYPASS,
16–1000 Hz
Frequency of the lter that
cuts the low-frequency
content of the input
sound (BYPASS: no cut)
Drive 0–127 Amount of distortion
Tone 0–127
Tone quality of distorted
sound
OVERDRIVE
Mildly distorts the sound. The tone quality of the
distorted sound is adjusted with a lter.
Parameter Value Explanation
PreHPF
BYPASS,
16–1000 Hz
Frequency of the lter that
cuts the low-frequency
content of the input
sound (BYPASS: no cut)
Drive 0–127 Amount of distortion
Tone 0–127
Tone quality of distorted
sound
ISOLATOR
This is an equalizer which cuts the volume greatly,
allowing you to add a special eect to the sound by
cutting the volume in varying ranges.
Parameter Value Explanation
Boost/Cut Low -64–+63
These boost and cut each
of the low frequency
ranges.
At -64, the sound
becomes inaudible. 0 is
equivalent to the input
level of the sound.
Boost/Cut Mid -64–+63
These boost and cut each
of the middle frequency
ranges.
At -64, the sound
becomes inaudible. 0 is
equivalent to the input
level of the sound.
Boost/Cut High -64–+63
These boost and cut each
of the high frequency
ranges.
At -64, the sound
becomes inaudible. 0 is
equivalent to the input
level of the sound.
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