E-Mu MORPHEUS Operation Manual page 202

Z-PLANE FILTER DESCRIPTIONS
F101 StrngThing4
A series of widely spaced notches produces this filter, which can
sound somewhat like a phase shifter when Morphed - especially if
the value for Frequency Tracking is set fairly high. With Morph
Offset and Frequency Tracking set high, the curve is essentially
flat, with a gentle bump approaching 20kHz, so this filter might
be a good choice for adding a subtle sparkle to some sounds.
Morph: Controls cutoff frequency and depth of notches.
Freq. Tracking: Tunes the filter.
Transform 2: Not used.
F102 StrSweep.4
Set Frequency Tracking between the ranges of 200 and 255, and
gently modulate the Morph Offset parameter in its upper ranges
for an effect that will accentuate bowing sounds in string pro-
grams.
Morph: Positive modulation increases filter center frequencies and
resonance.
Freq. Tracking: Positive modulation decreases resonance, increases
brightness slightly.
Transform 2: Not used.
F103 BassXpress
This filter provides increased bass, and a sharp notch.
Morph: Controls the depth of the notch.
Freq. Tracking: Tunes the notch.
Transform 2: Controls the lowpass filter cutoff frequency.
F104 Qbase.4
Morph: Sweeps from a bright nasal response to accentuated low-
frequency boost.
Freq. Tracking: Tracks filter with keyboard.
Transform 2: Not used.
F105 AcGtrRs.4
This filter is designed to emulate some of the resonant characteris-
tics of an acoustic guitar body. With Morph Offset and Frequency
Tracking set to 000, the body is extremely resonant, as if a large
acoustic guitar were close-miked near the sound hole. Vary the
value for Morph Offset to vary the 'mic position'. Route velocity
to Freq. Tracking for controlling brightness and 'pick position'.
Morph: Controls filter formant notch depth and position.
Freq. Tracking: Frequency Tracking.
Transform 2: Not used.
192 Morpheus Operation Manual