This update centers on Mosaic, with a rework that opens new ways to freeze sound in time, move through it, and shape what happens next.

Mosaic has always been about turning small moments of sound into something you can explore. With 2.2, that idea becomes more focused. You can now lock the buffer to hold any moment in place, then move through it with the new Scan control. From slow, drifting movement to fixed positions and delay-based motion, Mosaic gives you more ways to stay inside the material as it transforms.

Feedback has also been reworked. You can feed the output back into the buffer to create evolving textures that build over time, while the original SOS behavior remains available as a legacy mode. Movement inside grains has been expanded too, with random pitch, amplitude, and reverse playback bringing more variation into the texture.

Warp is now part of Spray, with new modes for shaping how grains move and behave. Mosaic can also run independently of playback, making it easier to use frozen material as its own performative layer.

What’s new in Mosaic

With the reworked Mosaic, you can:

• Lock the buffer to hold any moment in place

• Move through the buffer with the new Scan control

  • Stretch (slow drift), Position (fixed point), and Delay (synced or in ms)

• Feedback has been reworked (formerly SOS)

  • Feed output back into the buffer for evolving textures

  • Legacy SOS remains as a mode

• Expanded movement within grains

  • Random pitch (stereo/mono), amplitude, and reverse playback

• Warp is now part of Spray, with new modes

• Mosaic can run independently of playback (configurable)

Together, these changes make Mosaic more direct, more flexible, and more open to exploration. A sound can be held, stretched, repeated, or slowly pulled apart while you continue shaping it in real time.

Refinements across the instrument

Alongside the Mosaic update, S4 2.2 includes a range of refinements across recording, playback, display, sync behavior, and system performance.

This includes more stable recording and playback across Disc and Tape, improved waveform display, better monitoring behavior, improved handling of Sync mode in Disc, more reliable TEMP mode behavior, and improved CPU behavior when the instrument is not playing.

These updates are part of the ongoing work of keeping the S4 open, responsive, and steady in use. Please see the changelog for all details.

Update your S4

S4 2.2 is available for download now.

Check out the full changelog.