The élastique algorithm is suited for polyphonic and monophonic material.

The following modes are available:

élastique Pro

For best audio quality, without formant preservation.

élastique Pro Formant

For best audio quality, but including formant preservation.

élastique efficient

Requires less computing power, but has a lower audio quality than the Pro modes.

The modes support the following variants:


Favors timing accuracy over pitch accuracy.


Favors pitch accuracy over timing accuracy.


Locks the pitch shift to the time stretch as if playing back a tape with varying speed. If you stretch the audio material, the pitch decreases automatically. This variant has no effect if you use it with event transpose or the transpose track.