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Dave Smith Instruments PROPHET 12 KEYBOARD User Manual

Page 26

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16 Oscillators

Dave Smith Instruments

the oscillator select buttons show the modulator/carrier relationship

between the oscillators, as does the following table.

Carrier

Modulator

Oscillator 1

Oscillator 2

Oscillator 2

Oscillator 3

Oscillator 3

Oscillator 4

Oscillator 4

Oscillator 1

Turning up FM for oscillator 1 causes it to be modulated by oscillator 2,

turning up FM for oscillator 2 causes it to be modulated by oscillator 3,

and so on.

Note:

The indicated order of modulation is really just a handy short-

cut. In fact, you can route any oscillator to another using the modula-

tion matrix. See Modulation on page 32 for more information.

Amplitude Modulation (AM): 0…127—

As with FM, AM uses the oscil-

lators as carrier/modulator pairs. But with AM, the modulator modulates

the carrier’s amplitude, not its frequency. As with FM, any oscillator

routing combination can be configured using the modulation matrix.

Glide Amount: 0...127

—Sets the oscillator glide (portamento) amount.

Glide can be set independently for each oscillator. Low values are

shorter/faster. The g

liDe

switch must be on to hear the effect of g

liDe

a

moUnt

. For a detailed explanation, see Glide on page 36.

Tip:

To set g

liDe

a

moUnt

for all oscillators simultaneously, press

and briefly hold any of the oscillator select buttons until all of them

are lit. Then adjust g

liDe

a

moUnt

. Press any oscillator select button

to exit.

Slop: 0…127—

Adds random detuning to the oscillator to emulate the

tuning instability of voltage controlled analog oscillators, from subtle,

barely perceptible amounts to wildly out of tune.

Oscillator 1 Sub Octave: 0…127—

Controls the level of a sine wave

oscillator pitched one octave below oscillator 1.