Attack / Decay / Sustain / Release

In fact this is more or less an adsr generator.

It can generate normal adsr envelope, shorter ones such as only ad or ar but also adds a delay and hold (such as some synthetisers.

There is no limit

adsr ms:vol ms:vol .... type generator

By default, 0:0 is the first implicit value.

ms is a time (millisecond)
vol is the volume reached at that time.
type is either once or loop

Example

adsr 100:100 200:50 1000:50 1200:0 last

Automatic volume regulator

When saturation occurs, this modules tries to adjust the volume in order to reduce it.

avc speed generator

speed : float [0..1], speed at which volume is changed.

Note : yet, speed is not time calibrated. This may change in future.

avc 1 sinus 220:200