Noise, Low-pass filter – Dave Smith Instruments PROPHET 08 DESKTOP User Manual

Page 20

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Shape/PW: see table –

Selects the analog waveshape as follows:

Display

Waveshape

Off

No output

Sawtooth

Sawtooth

Triangle

Triangle

Saw-Tri

Sawtooth – Triangle mix

Pulse xx

Pulse Wave, with pulse width ranging from minimum
(0) to maximum (99). The pulse width will turn off at the
two extremes – this allows some interesting modulation
possibilities. A square wave will be at Pulse 50.

Glide: 0…127 –

Sets the Oscillator Glide (portamento) rate. Glide can be set

independently for each oscillator. Low settings are faster.

Note: See “Glide Mode” in Miscellaneous Parameters on page 18 for
additional Glide settings.

Sync 2-> 1

When enabled (lit), turns oscillator hard sync on. With sync on,

whenever oscillator 2 resets, it will force oscillator 1 to reset for the classic hard
sync sound.

Mix: 0...127 –

Enables the outputs of Oscillators 1 and 2 to be mixed in varying

amounts. A setting of 0 is equivalent to 100% Oscillator 1 and 0% Oscillator 2.
A setting of 127 is just the opposite. A setting of 64 is essentially a 50-50 mix of
both oscillators.

Noise

Level: 0…127 –

Controls the volume of white noise mixed into the filter.

Low-pass Filter

Each of the Prophet '08's voices utilizes an analog low-pass filter coupled with a
4-stage (plus delay) ADSR envelope generator.

4 Pole

Selects either 2- or 4-pole operation for the filter. (The filter is in 4-

pole mode when the 4

P

OLE

switch is lit.)

Frequency: 0…164 –

Sets the base filter cutoff frequency over more than 13

octaves.

Resonance: 0…127 –

Sets the Resonance level of the filter. At high settings the

filter will self-oscillate in 4-pole mode. If the filter does not oscillate, make sure
the 4 P

OLE

switch is on.

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