Moog THE SOURCE Owner's Manual page 43

1. Hold down any key. Turn up the Mod wheel. Modulation to the oscillators produces a vibrato effect.
2. Switch modulation |t]gg| to Osc and |2U| to Filter. Modulation of the filter cutoff frequency is called
tremolo; it is a more subtle effect and will usually be hidden by vibrato.
3. Touch Ml and repeat steps 1 and 2. The square wave can also control the oscillators or filter.
The Source may be thought of as having two main operating sections — the analog synthesizer and the digital control
circuits. The analog functions have been described; the next section deals with the digital functions that send control
signals to the analog synthesizer.
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