Spiral is a spectral analysis plugin that coils the spectrum of a signal into a spiral framed by a chromatic circle, so musical notes can be read visually.
spiral at a glance
| Developer | Photosounder |
|---|---|
| Type | Effects / Spectral Analysis |
| Formats | VST2, AU |
| Operating systems | Windows, macOS |
| Architecture | 64-bit |
| Free trial | Available |
| Price on Plugin Boutique (October 2026) | €94.21 |
What spiral does
Rather than showing frequency as a flat graph, Spiral wraps the spectrum around a spiral, and the chromatic circle lets each pitch line up with its position in the octave. The visualisation is rotated so the root scale sits at the top, which makes it easier to recognise chords and scales at a glance. Colours represent the position of each sound in the stereo mix, so instruments placed at different points in the image can be told apart.
Analysis resolution can be adjusted, and the developer advises lowering it when the analysed notes are played fast. Portions of sound are recorded into Spiral’s memory and then played back at a much slower rate, which helps follow quick passages. Spiral is a VST2 and AU effect for Windows and macOS (64-bit) and a trial is available. Release notes: circulating as a torrent or magnet link, the Windows build is packed as a repack with .rar and .iso files, a keygen or serial key is the string most often typed next to the name, and the macOS build is found as a .dmg crack or AU crack.
Key features
- Spiral visualisation. The spectrum is coiled into a spiral framed by the chromatic circle, so pitches are arranged by note name and octave.
- Root scale orientation. The visualisation is rotated so the root scale appears at the top, helping the eye recognise the key of the material.
- Stereo position colours. Colours represent the position of each sound in the stereo mix, which often separates instruments that share a register.
- Harmonic overlays. Clicking the visualisation creates overlays that show the harmonics of a given note, and adjusting those overlays changes what is displayed.
- Adjustable analysis resolution. The analysis resolution can be changed, with lower settings suggested for fast-played material.
- Slow playback memory. Portions of sound are stored in memory and played back at a much slower rate for closer inspection.
Compatibility
Spiral is available as VST2 and AU for Windows and macOS (64-bit), and a trial is available.
Plugins similar to spiral
| Plugin | Developer | Type | Formats | Systems | Price |
|---|---|---|---|---|---|
| spiral | Photosounder | Spectral Analysis | VST2, AU | Windows, macOS | €94.21 |
| VISION 4X | Excite Audio | Spectral Analysis | VST3, VST2, AU, AAX, Standalone | Windows, macOS | €7.43 (regular €88.26) |
| VISION 4X Lite | Excite Audio | Spectral Analysis | VST3, VST2, AU, AAX, Standalone | Windows, macOS | €28.76 (regular €58.51) |
Price and availability
spiral was listed on Plugin Boutique in October 2026 at €94.21. A free trial is offered. Prices change often, so the store page shows the current one.
spiral FAQ
Is there a working serial key or keygen for Spiral?
Serial keys and keygen files are the strings most often searched next to the name, while the developer distributes a trial version.