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Cutoff Frequency
This is the frequency above
which the spectrum is cut. Over-
tones are reduced this way. You
can change the Cutoff Frequen-
cy manually.
Emphasis
Emphasis describes the Reso-
nance parameters. The Reso-
nance is created by routing the feedback of the Filter Output to the
Filter Input. The frequencies around the cutoff frequency will be
strengthened this way. On full Emphasis the Filter sweeps in its own
resonance and creates a sinus tone at the chosen cutoff frequency.
Therefore the Filter can be looked upon as the sixth sound source.
Amount of Contour
Adjust the intensity of the envelope on the Filter here. Cutoff will
follow the envelope course with the adjusted intensity – this way
you can create a sound flow. Starting and End point of the envelope
course is the adjusted cutoff frequency.
Attack
This controls the attack time of the envelope, the envelopes first
segment. When setting Attack to a maximum, the envelope increa-
ses in time. The increase ratio is defined by amount of contour.
Both Cutoff Frequency and Amount of Contour determine the maxi-
mum level.
Decay
This controls the envelopes second segment. Within the Decay-
Phase the envelope falls down within the given time to the Sustain
value adjusted. When activating the decay button in the Controllers
Section, the envelope takes charge of the release time.
Sustain
This is the third segment of the envelope. Values here sustain the
envelope after the Decay. The Sustain’s effect is independent from
Cutoff Frequency and Amount of Contour adjustments.
