If you want a sound that has a changing volume, you can make a volume-envelope which says how the volume changes in the time. Then you can apply the envelope to a Wave which you want change the volume.
An envelope is a wave that let vary the parameter for a certain function.

There are more kind of envelopes:

1. speed
2. move horizontally
3. distortion
4. tempo
5. pitch
6. balance
7. low- and highfilter
8. resonant- and notchfilter
9. blockfilter
10. repeat echo time
11. repaet echo volume
12. envelope for making block or triangle waves
13. and six kinds of envelopes for the random echo function

With envelopes much more sound effects become possible!

Last updated: 30-11-2025