Background preparation
Loading and transient analysis never run inside the realtime callback.
← Product engineering
VST3 sample discovery instrument · v1.5.1
FORMA
Audio analysis that ends in something playable.
A drag-and-drop sampler that detects transients, maps slices across MIDI, builds chromatic instruments, and quick-saves production-ready one-shots.
Architecture
The system behind the surface.
File decoding and analysis stay outside the audio callback. Immutable source buffers feed a 32-voice realtime engine with velocity, voice stealing, per-slice state, anti-click fades, MPE pitch bend, and pressure.
Signal and data flow
01
File decode
02
Onset analysis
03
Slice state
04
Voice engine
05
Effects
06
24-bit save
Engineering decisions.
Session-safe state
Source path and independent settings for up to 64 slices restore with the project.
Controller contract
Thirty-three named parameters expose useful Push banks and performance controls.
Cross-product handoff
A latest-stem contract connects SPECTRA quick-saves directly to FORMA.
The product experience
See FORMA on gusvega.com →