Velvet Machine

Sonic texture generator / blur / non‑linear reverb

Velvet Machine Screenshot

Velvet Machine is an audio effect based on real-time convolution with enveloped velvet noise. It's designed to:

  • Stretch and blur out even short sounds to lengths of up to 10 seconds
  • Produce reverb-like textures with flexible volume envelope (including reverse, fading in and out, pulsating etc.)
  • Work as a variable density random multi-tap delay (bordering on granular-like sounds)

Note for iOS users: At high settings, Velvet Machine can be quite CPU-intensive. A minimum of 5th Gen iPad, iPhone 6s or 1st Gen iPhone SE is recommended.


Velvet Machine playlist (9 videos)
Velvet Machine playlist (9 videos)


  • Flexible volume envelope with arbitrary number of segments and curvature
  • Effect time ranging from 50 ms to 10 s
  • Response density adjustable from 1 to 2000 repeats per second
  • Predelay up to 1 s
  • Host tempo sync for time and predelay parameters
  • High cut and low cut filters for the effected signal
  • Mix adjustable from 100% dry to 100% wet with no dry signal
  • Mix Lock to switch presets while keeping the dry/wet mix constant
  • 20+ factory presets to get you started
  • Fully resizable vector-based UI
  • Cross-platform preset format


The demo version is identical to the full version, except that the effect fades into gentle noise and back every minute, and does not save presets or state.


macOS 10.10+

AU 64-bit, VST3 64-bit
Intel and Apple Silicon (Universal 2 binary)

Windows 7/8/10 (64-bit only)

VST3 64-bit

iOS 12.0+

AUv3, Standalone
Universal (iPad and iPhone)