User Manual

A-140

ADSR

System A - 100

doepfer

5. User examples

The envelope generated by the ADSR can be used for

most kinds of modulation:

• ADSR - VCA

Modulation of loudness / amplification over time.

•

ADSR - VCA for voltage control of any in /

output processes, with the process time control-

led by the A, D, S, and R parameters.

• ADSR - VCF

Modulation of the cut-off frequency produces a

constantly evolving sound spectrum.

• ADSR - VCO (PWM)

Modulation of the pulse width of a VCO produces a

constantly changing timbre.

•

ADSR - VCO (FM)

Modulation of the pitch control voltage produces

variation in pitch as a note progresses (and at very

short envelope settings produces variation of tim-

bre).

• ADSR - VCP

Modulation of the phase shift of an A-125 VCP

produces variation in phase shift as a note pro-

gresses. For this function slow settings of A, D and

R parameters should be used.

• ADSR - VCLFO

Control of the frequency of an A-147 VCLFO pro-

duces variation in

LFO frequency

as a note pro-

gresses. For this function slow settings of A, D and

R parameters should be used.

Examples and further notes can be found in the manu-

als for the individual modules.