Moog MF-107 Informations techniques télécharger pdf (Page 22)

Using the FreqBox with a CP-251 Control Processor

Sample and Hold Sync

This setup patches the Sample and Hold output of the CP-251 to the

Frequency input. The setup is pretty much otherwise the Basic Sync

Setup. It illustrates the use of CVs to modulate the FreqBox parameters.

This one is pretty nice for pseudo-arpeggiated sparkly sounds. You can

easily substitute other time-varying CVs such as the LFO triangle wave

for further exploration of this idea.

PWM

Figure 17 - PWM

Figure 16 - Sample and Hold Sync

This setup uses the LFO triangle wave from the CP-251 to modulate

the waveform of the VCO, which is set halfway between square and

the pulse setting. The trick is to adjust the attenuator for the right LFO

amount such that the sound seems "fatter and skinnier" in time with the

LFO. This is varying the pulse width of the VCO waveform and is called

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Moog MF-107 Informations techniques Page 22