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Emax II operation manual
154
DYNAMIC PROCESSING 13
FILTER FREQUENCY,
Q, ENVELOPE AMOUNT,
TRACKING
This function determines the filter’s initial cutoff frequency and Q (sharpness), the
extent to which the associated AHDSR envelope affects the filter cutoff frequency,
and the effect of keyboard position on cutoff frequency.
Application:
Change the timbral quality of a sound.
1. Activate
DYNAMIC PROCESSING 13
. The display will say:
Fc Q Env Trk
XXX XX
±
XX X.XX
Hint:
Filter and VCA settings interact. For example, if the VCA is set for an extremely
short decay, then you won’t hear the effects of setting a long filter decay.
2. Select the desired parameter for adjustment with the cursor buttons, then use the data
slider to change the parameter value. These are the parameters:
■
Freq:
Varies the lowpass filter cutoff from 0 to 120. Higher values correspond to
higher filter cutoff frequencies, hence a sound with more treble. The maximum filter
sweep range is most obvious with Env set to +00.
■
Q:
Varies the Q (resonance) from 00 to 99. Higher values correspond to increased
resonance, accentuating the filter cutoff frequency,which gives a purer, more whistling
sound.
■
Env:
Varies the effect of the filter envelope (see
DYNAMIC PROCESSING 14
) on the
filter cutoff frequency from -50 (maximum inverted envelope) to +00 (no envelope) to
+50 (maximum positive envelope). It is usually necessary to raise the filter cutoff value
when using inverted envelopes.
■
Trk:
Varies the filter cutoff with respect to the note(s) being played on the keyboard
from 0.00 (no tracking) to 1.87 (overtracking) filter-oct/keyboard-oct. With 0.00 track-
ing, the filter cutoff will not be affected by the keyboard pitch. With 1.00 tracking, the
filter cutoff will track the keyboard pitch. With 1.87 tracking, the filter cutoff will change
at almost twice as fast a rate as keyboard pitch changes.
DYNAMIC PROCESSING
Filter Controls
Summary of Contents for EMAX II
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