Tape Transport / Varispeed

SPOOL

v1.0.0-beta — beta · Standalone + AU · macOS Apple Silicon

Free download

Get SPOOL.

Beta build. No payment, no account.

Binary upload pending — check back soon.

v1.0.0-beta — What's new ▾
  • The tape spins down and stops — a transport / performance effect, not a defect or saturation pedal
  • STOP: hold to spin down to a halt, release to spin back up (an automatable param in the plugin)
  • TIME: spin-down/up inertia, 50 ms hard brake → 4 s slow coast (the exponential curve IS the character)
  • SPEED: resting varispeed 0.5× sludge → 2× chipmunk; at exactly 1.0× SPOOL is a pure tape-stop
  • Variable-speed read head on vmtape’s vm_transport (4th-order Lagrange — alias-clean pitch sweeps); pitch + tempo drop together, then fade to silence at the halt
  • Transport effect: the STOP gesture always returns to 1× glitch-free; a sustained extreme SPEED drifts on the finite buffer and resyncs (not a real-time time-stretch)

Requirements

  • macOS 13 Ventura or later
  • Apple Silicon (arm64) — Intel / Windows coming later
  • ✅ Standalone app (SPOOL.app) — A minor chord test tone
  • ✅ AU (Audio Unit v3) — GarageBand, Logic Pro, REAPER, Ableton Live

Install

  • AU~/Applications (open SPOOL.app once to register)

Gatekeeper

Not notarized yet. Run once:

xattr -dr com.apple.quarantine /Applications/SPOOL.app
Windows-versie

Bij 100 stemmen bouwen we VET voor Windows — FL Studio, Ableton, Reaper.

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SPOOL — Tape Transport / Varispeed | Van Moose Audio