strum audio plugin


Sound Strummer

Strum is an intuitive multiband delay.

Designed to make spectral delays easier to use, Strum splits your signal evenly and cleanly into a bunch of different bands, and then allows you to control the delay time & feedback of each band.

Strum can work either in “free” or “sync” mode, where in “sync” mode each individual band’s delay time is synchronized to the tempo & time signature of your DAW, allowing for rhythmically-aware strumming.

Additionally, Strum provides  a modulation panel for a bit more control of the delay times, allowing you to switch between “flutter” and “random” modes.


Modulation Skew

Strum allows you to “skew” (or bias) the modulation based on frequency. Enabling the skew link & then adjusting the skew knob can increase / decrease the frequency / depth of your modulation as the frequency changes.

Factor Band Control

Similar to Sweep and Recurse, Strum features a “Factor Band” control system where points are adjusted similarly to how an EQ would be adjusted, giving you comprehensive control over the frequency range.

Dynamic Crossover

Strum’s multi-crossover system makes use of a proprietary filter bank which has both a flat frequency and phase response. Rest easy knowing that Strum isn’t coloring your sound at all when it doesn’t need to be.

Overlay Adjustment

Just in case the overlay that changes as the delay time & feedback are changed seems a bit too much to look at, you can go into the menu (by clicking the Lese logo) and disable it. We’ll still show you where the bands are split at, though.


Check out this video for a long look into all of Strum’s available features, set to dub techno (mostly);

What others are Saying

Strum can sound like a classic delay but its strength lies in the experimental sounds. It is capable to create sounds that are reminiscent of filtering with delay, physical modeling with strumming, and more.

Priding itself on its ability to produce more nuanced and avant-garde sounds, Strum seems to offer some truly inventive options for producers who like to think outside the box.


Blog posts related to Strum

  • Optimized multiband delay network
  • All-new “Dynamic Crossover” system for precise band-splitting
  • Efficient delay-time modulation system with frequency-aware bias
  • “Free” and “Sync” time delay modes
  • Factor band control system
  • Responsive visual overlay
  • Vectorized, resizable interface

Windows: Supports VST3 & AAX

MacOS: Supports VST3, AU & AAX (Intel and ARM)

A Manual for Strum is included with the download package.