Dave Smith Instruments Pro 2 Technical Information PDF herunterladen (Seite 35)

Analog Drum Machine

Envelopes

A Note About Envelope Shape

Like most synthesizers, Tempest’s envelopes are not linear, but curved. Without

going into too much detail (or math), the curve is based on a logarithmic func-

tion. But that curve—and, therefore, the envelope’s shape—can be altered with

modulation.

Forexample,gureAbelowshowsthe“normal”decayofasimpleADenvelope

where attack is set to 0.

Using one of Tempest’s Mod Paths (see page 29), an envelope can be used to

modulateitself.FigureBshowswhathappenswhentheenvelopeingureAis

used as the modulation source and the mod destination is that same envelope’s

decay,withamodamountof-60;gureCiswithamodamountof60.

Note: Modulating an envelope segment also changes its length (time). In the

previousexamples,gureB’sdecaytimewasdecreasedandgureC’sdecay

time was increased.

LFO 1 & 2

Tempest has two low frequency oscillators (LFOs). The LFOs can be free-

running or synced to the beat.

LFO2: Off, On—Chooses the LFO to edit. When off, the panel controls affect

LFO 1; when on, LFO 2.

Rate: 0...162—Sets the LFO frequency. Speed ranges from slow (30 seconds) to

very fast—at 90 (8 HZ, C-2) and above the speed steps in semitones, up to 162

(523 Hz, C4 or an octave above middle C).

Note: Some of the analog functions may not respond as expected to the fast-

est LFO speeds, due to speed limitations of the control voltages, but they will

certainly generate some interesting sounds.

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Dave Smith Instruments Pro 2 Technical Information Seite 35