stwETCH is a granular time-stretching and buffer repeater effect that allows dramatic stretching of audio up to 500% of its original length. It offers a range of granule sizes from 10 to 500 milliseconds, enabling everything from smooth textures to wild, chaotic sound manipulations. The effect features two distinct pitch controls: one adjusts the playback speed of the granules, similar to tape speed manipulation, while the other independently shifts the pitch, providing creative sound design options.

Designed as a playable instrument with a control surface in mind, stwETCH operates uniquely by responding exclusively to MIDI continuous controller data rather than conventional note-on messages. This approach makes it ideal for expressive, hands-on performance using MIDI controllers or automation within a DAW. Its monophonic nature focuses the effect on single voices, encouraging precision and creativity in live or studio environments.

stwETCH is available in stereo for full spatial impact, while a free mono version offers a taste of its capabilities for those looking to explore its features without commitment. This makes it accessible to a wide range of users, from experimental sound artists to producers seeking new textures and effects to enrich their audio projects.