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A-170, System a - 100, Doepfer – Doepfer A-170 Dual Slew Limiter User Manual

Page 6: Dual slew limiter, Creating complex envelopes

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A-170

Dual Slew Limiter

System A - 100

doepfer

6

Creating complex envelopes

A combination of the Clock Divider / Sequencer (A-
160/161) and a number of A-170 slew limiters can
produce complex envelopes (see Fig. 5).

The Clock Sequencer triggers the Slew Limiters in
sequence, and their various envelopes are mixed in a
linear mixer A-138a. The result is a complex envelope
which can be patched from the mixer output to
anywhere.

P

You can further elaborate on this patch, by
adding other control voltages to the slew
limiters’ envelopes - for instance:

• an ADSR with a long envelope, triggered

by output ! on the A-161;

• an LFO output, with or without reset;
• the random output from an A-118;
• an audio signal via an envelope follower

(A-119).

Fig. 5: Creating complex envelopes

A-161

1

2

3

4

5

6

7

8

Clock

Sequencer

A-170

A-160

A-170

LFO, M IDI Clock

Input 1

Output

A- 138

MIXER

Input 2

Input 4

Input 3

In 1

In 2

In 3

In 4

Out