Modal Electronics COBALT8X User Manual page 16

8 voice polyphonic extended virtual-analogue synthesiser
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Filter
COBALT8X has a 4-pole morphable ladder filter, with switchable configurations
Cutoff: This parameter controls the filter cutoff frequency. This affects the cutoff
frequency of the filter, from 0Hz up to 22kHz.
Reso: This parameter controls the amount of resonance of the filter.
Morph: This encoder changes the frequency response of the filter. See below for how
this control morphs each of the different filter types.
Type: Holding the 'Patch/Seq' button and turning the Cutoff encoder selects the current
type of the filter. The filter types available are:
Resonant Low Pass - Morphs 4-pole lowpass, through bandpass, to 1-pole lowpass
Balanced Low Pass - Morphs 4-pole lowpass, through bandpass, to 1-pole lowpass
Balanced High Pass - Morphs 4-pole highpass, through notch, to 1-pole highpass
Balanced Phase - Morph controls the width and depth of the dual notches
The Resonant Low Pass filter type is designed to maximise resonance response.
The Balanced Filter types lose less low end frequencies at high resonance settings, with the
trade off that resonance is reduced when sweeping the cutoff towards lower frequencies.
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