Plugins / Siren
Ghostnote Audio
Siren — Pitch Correction
Voice-only pitch correction with a key-aware grid. Off-key notes turn red with cent labels, in-key lanes glow gold. You can see what is off before you touch a control. One price, no subscription, and you own it outright.
Keyless. Install it on every computer you own, and it stays yours. Instant download, all sales final.
Under the hood
How SIREN corrects pitch
The key-aware grid
Choose the key and the grid colors the lanes that fit it. Off-scale notes show as red blocks with cent labels. One glance answers the question: am I in key?
Edit by dragging
Every detected note is a block you can drag to a new target. Auto-correction handles the take; you override the moments that matter.
Retune without the robot
SIREN smooths the correction, not the target, so legato stays human at slow settings. At zero it snaps hard for the full hard-tune effect.
Formants, preserved or not
Time-domain resynthesis keeps the voice a voice. Formant Preserve holds the character; Formant Off gives you the chipmunk when you actually want it. Four presets from Natural to Hard-Tune.
Where it sits
The chain
Pairs with the rest of the line: The Rap Vocal Chain · $49 The Full Suite · $89
Specifications
The numbers
- Formats
- VST3 (macOS, Windows) · Audio Unit (macOS)
- Systems
- macOS 11+ (Apple Silicon + Intel, universal) · Windows 10+ 64-bit
- Detection
- YIN, 60 to 1100 Hz, parabolic refinement
- Correction
- TD-PSOLA, formant preserve or off
- Latency
- ~3208 samples at 48 kHz (~67 ms), reported to host
- Window
- 880 x 560
- Download
- Installer + manual + install notes, macOS and Windows
- License
- Keyless. Install on every computer you own; it stays yours.
Manual + quick start
Signal flow, every control, recipes, and the measured numbers behind every claim.
From checkout to first sound
- Check out. Your download link arrives by email within a minute.
- Run the installer for your system. macOS asks once about the unsigned installer; the included notes walk you through Open Anyway.
- Rescan plugins in your DAW. In FL Studio: Options, Manage plugins, Find more plugins.
- Load a preset. Make it yours.
Questions
Straight answers
Is SIREN an alternative to Auto-Tune or Melodyne?
Against a realtime tuner like Auto-Tune, largely yes: key-locked correction on the track, a one-time $39 you own outright, and no subscription. Melodyne is a different kind of tool. It is an offline note editor that also handles timing, formants and polyphonic material, and SIREN does not try to be that. SIREN is built for getting a vocal in key while you work. The key-aware grid makes staying in key obvious, and SIREN still hard-tunes; pull Retune to zero for the snapped effect.
Will SIREN sound robotic or natural?
Your call. It smooths the correction, not the target, so legato stays human at slow Retune settings and snaps hard at zero. Formant Preserve keeps the voice sounding like the singer; turn it off for the chipmunk lift. Four presets run from Natural to Hard-Tune.
Can I retune a single note by hand?
Yes. Every detected note is a block on the key-aware grid. Auto-correction handles the whole take, then you drag any block to a new target to fix only the moments that matter.
Does SIREN work in FL Studio?
Yes. SIREN installs as a VST3 on Windows and macOS and as an Audio Unit on macOS, so it loads in FL Studio, Ableton, Logic, Studio One, Cubase, REAPER and any other VST3 or AU host.
How do I install it?
Run the installer and rescan plugins in your DAW. On macOS the installer is not notarized by Apple yet, so approve it once under Privacy and Security, or right-click the installer and choose Open. The bundled notes show the exact steps for your macOS version.
Do I need a license key, an iLok, or an account?
None of them. The plugin is keyless. Download it, install it on every computer you own, and it works. There is nothing to activate and nothing to log into.