CreamWare Noah Vocodizer Manual page 10

FilterMix
Here you can adjust the cutoff or center
frequencies of each filter individually. To
adjust a filter's frequency, click on its
frequency value and enter the new value
with your keyboard. The new value applies
to each respective analysis and synthesis
filter.
After modulation by the Envelope
Follower, the 22 synthesis filters in the
synthesis bank are mixed down to stereo
through an internal mixer. You can set each
filter output's stereo pan position
individually to create some very pleasing
and spacious stereo effects.
If you also modulate the frequency or pitch
of the synthesized sound, you can create
some very striking stereo effects.
Because you can control the volume
levels of each individual filter output,
extremely detailed control of the
vocoder effect is possible.
Vocodizer
The Frequency Calculator
To open the Frequency Calculator, click
the Tool icon in the Page selector area.
This dialog lets you adjust the frequencies
of all the filters by specifying a base
frequency and a factor.
Calculate Frequencies: Click this option
to re-compute the filter frequencies. The
new frequencies replace the old ones.
Lowest Frequency: Specify the base
frequency here. The low pass filter is
given this value as its cutoff frequency.
For the band pass filters to start at a
value of 200 Hz, set the low pass filter
to 100 and adjust the volume to 0.
Multiplier: This is the factor used to
calculate subsequent filter frequencies.
For example, if the sequence starts at
200 Hz, a factor of 2 will produce the
following sequence: 200, 400 (200*2),
800 (400*2), 1600 (800*2)...
The maximum allowable frequency is
12,000 Hz. Any filters exceeding this
value are automatically switched off,
and the volume controls associated
with them will have no effect.
Contents Index
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