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FILTROID PARAMETERS
F F i i l l t t e e r r T T y y p p e e s s
"HP" selects the High Pass filter, allowing the high frequencies of a signal to pass, while
attenuating the frequencies below the cutoff frequency. The amount of attenuation will
increase as you increase the size of the cutoff slope. (A 24 dB slope on a High Pass filter
will cutoff much more low frequency signal than a 12 dB slope).
"BP" selects the Band Pass filter, passing only the frequencies that fall within a selected
range. The high and low frequencies are attenuated above and below the cutoff
frequencies. The amount of attenuation will increase as you increase the size of the
cutoff slope. (A 24 dB slope on a Band Pass filter will cutoff much more low and high
frequencies of a signal than a 12 dB slope).
"LP" selects the Low Pass filter, allowing the low frequencies of a signal to pass, while
attenuating the frequencies above the cutoff frequency. The amount of attenuation will
increase as you increase the size of the cutoff slope. (A 24 dB slope of a LP filter will
cutoff much more high frequency signal than a 12 dB slope).
A A m m p p l l i i f f i i e e r r
Each filter has two amplifier parameters: Drive and Damp.
D D r r i i v v e e
Increasing the Drive will increase the amount of distortion in the signal.
D D a a m m p p
Increasing the Damp parameter will attenuate the high frequencies, resulting in a sound
that is much smoother, especially when a lot of Drive has been introduced into the
signal. The greater the amount of damping applied to the signal, the more the signal will
soften, rounding out peaks of your driven signal.
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Filtroid offers a wide range of modulation possibilities. In addition to two LFOs and an
Envelope follower, Filtroid also provides modulation control from as many as two side
chain channels, a setting for Envelope triggered LFO, Tempo Sync and more.
M M o o d d u u l l a a t t i i o o n n D D i i s s p p l l a a y y s s
Each filter has a Modulation Display that indicates both modulation depth and speed. At
first glance, the displays resemble an oscilloscope, but this is in fact a 'Fish Eye' display
and not a true oscilloscope. The modulation display will 'warp' the waveforms at the
edges of the display. The height of the wave shows the modulation depth, while the
speed is displayed by the length of the wave cycles. The modulation display will appear
flat by default until a modulation source such as an LFO or the Envelope Follower is
applied.
L L F F O O m m o o d d u u l l a a t t i i o o n n
The LFOs are Low Frequency Oscillators that acts as modulators for the effect. The
oscillators generate a cyclic waveform at a frequency below the audible range.
Depending on the speed and the wave shape that you select for the LFOs, you can
achieve effects such as wah-wah and tremolo.
H H i i g g h h L L F F O O S S p p e e e e d d
L L o o w w L L F F O O S S p p e e e e d d
large Depth settings
lower Depth settings
S S h h a a p p e e
This switch will change the shape of the LFO waveform. The options are Sine,Triangle,
Saw, Square, and Random.
S S p p e e e e d d
This sets the speed of the LFO, in BPM (Beats per Minute).
MODULATION
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