E-Mu Ultraproteus Operation Manual page 92

PRESET PROGRAMMING
88
If four parametric filter sections were cascaded, it would be possible to create
the following complex filter response.
20
15
10
5
0
-5
Many natural instruments have complex resonances which are based on their
soundboard or tube size. The resonance shown above would be impossible to
create using a normal synthesizer filter.
THE ULTRAPROTEUS FILTER
The UltraProteus filter is actually much more complex than the four parametric
sections described above. As an example of its power, the diagram below shows
one of the possible ways that the UltraProteus filter can be configured. This
amount of filtering is unprecedented in all of electronic music history.
(Especially when you consider that we are only talking about one of the 32
channels.)
1 Low Pass
Section
In
Fc Q Fc
Bw
Gain
Right away you can see that we now have 20 different parameters to control. Ah,
there's the catch. How can all these parameters be effectively controlled? 20
envelope generators? We don't think so.
UltraProteus Operation Manual
4 Parametric Equalizers
500 10,000
Linear Frequency - Hertz
6 Parametric Equalizer Sections
Fc Fc Fc
Bw Bw
Gain Gain
15,000 20,000
Fc Fc
Bw Bw Bw
Gain Gain Gain
Out