Algorithmic Reverb
Halo Reverb Algorithmic reverb plugin
Eight spaces. One curve of light.
An algorithmic reverb plugin for close rooms, vocal plates and long pitched tails. Shape decay across six bands and use ducking to keep the dry performance clear.
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VST3 / AU / AAX · macOS & Windows · v1.1.11
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Read the Halo manualIN MOTION
Halo, running.
IN YOUR SESSION
Give the sound a place to live.
Put a plate behind a vocal, keep a drum room tight or let HALO regeneration climb into a pitched wash. Shape feedback-tail length across six fixed frequency regions. For gated and reverse effects, NONLIN gives you a finite window and its own envelope shape.
THE LISTENING ROOM
Listen to Halo.
One performance. Two perspectives. Loudness matched.
Small Wooden Room preset: Room space, 0.8 s decay, 10 ms predelay, 22% mix.
About this demo
Rendered through Halo Reverb 1.0.5 on macOS. Input and processed excerpts are matched in loudness. Switching keeps your place.
Open input audio ↗Open processed audio ↗A CLOSER LOOK
Inside Halo.
The tail, drawn as light
See the wet spectrum and shape the feedback tail above it. The contour keeps the decay of each frequency region visible as you work.
Six decay bands
Select one of six fixed regions, then drag or type a ratio from 0.25× to 4× master decay. The readout shows target seconds. NONLIN stores these values but does not use the contour.
Every value in its unit
Type predelay, size, decay and the other controls in their displayed units. Return applies and Escape cancels. TEXTURE holds contextual controls; HALO adds a regeneration page.
All features & controls
- Eight spaces across four engine families
- Six fixed decay regions, 0.25×–4× master decay in feedback spaces
- NONLIN finite WINDOW (0.1 to 1.2 s, scaled by SIZE) and SLOPE; feedback contour and tank modulation inactive
- HALO pitched regeneration with five interval choices
- TEXTURE/HALO pages and exact native-unit value fields
- MODERN, CLASSIC and VINTAGE era choices
- Predelay follows usable host tempo or falls back to manual
- Freeze holds feedback tails; early reflections remain live
- Dry-driven ducking; attack/release inactive at zero amount
- 43 factory presets plus Default, and presets you save yourself; A/B, COPY and mix lock
Plate is its own engine
A figure-eight plate gives vocals and snare their own reverb character. ER SIZE changes early reflections; BLOOM remains stored but inactive in this space.
Nonlin has no feedback loop
NONLIN shapes a finite tail with WINDOW and SLOPE. Feedback contour and tank modulation remain stored; Freeze does not turn this engine into an infinite hold.
HALO regeneration
A granular pitch shifter inside the tail's feedback path, with five intervals. The field runs gold into violet as the regeneration climbs.
Eight spaces, four engine families
| Space | Engine | Reach for it on |
|---|---|---|
| Hall / Chamber / Room / Ambience / Cathedral | Eight-line modulated FDN, tuned per space | Vocals, keys, strings, score |
| Plate | Figure-eight plate topology | Vocals, snare, anything that should shine |
| Nonlin | 32 decorrelated taps per channel, no feedback loop | Gated and reverse drums, 80s moves |
| HALO | FDN plus granular pitch regeneration in the tail | Shimmer, tuned air, sound design |
Put it to work.
A plate behind the vocal
Start with a short predelay and use ducking to let the dry phrase lead, then bring the tail forward between lines.
Drums with a room
Choose Room and shorten the low-frequency decay to keep the kick region controlled while the snare rings.
Gated and reverse tails
Use NONLIN’s WINDOW (0.1 to 1.2 s, scaled by SIZE) and SLOPE for a finite drum effect; it does not use the feedback decay contour.
A pitched atmosphere
Choose HALO, set an interval and introduce regeneration. Freeze can hold the feedback tail while tone, width and mix remain available.
THE DETAILS
Fits your setup.
- Spaces
- 8 across 4 engine families
- Decay contour
- 6 fixed bands; 0.25×–4× in feedback spaces
- NONLIN
- Finite window; no feedback contour or infinite freeze
- Eras
- MODERN / CLASSIC / VINTAGE
- HALO intervals
- 5
- Presets
- 43 factory presets plus Default; save your own
- Latency
- Zero added samples
- Platforms
- Windows 10+ (64-bit); macOS 10.15+ Intel / 11+ Apple Silicon
- Windows
- Windows 10 or later, 64-bit. VST3, AAX, Standalone.
- macOS
- macOS 10.15 or later on Intel; macOS 11 or later on Apple Silicon. AU, VST3, AAX.
- Hosts
- A 64-bit host supporting your platform’s plugin format. Your DAW may require a newer operating system.
Use it in Pro Tools, Logic Pro, Ableton Live, Cubase, Studio One, FL Studio, REAPER, Bitwig Studio, and other compatible hosts.
Find the right format for your DAW ↗Questions about Halo.
Which spaces are included?
Hall, Chamber, Plate, Room, Ambience, Cathedral, Nonlin and HALO, across four engine families.
Can I change the decay-band frequencies?
The five splits are fixed at 150, 400, 1200, 3500 and 8000 Hz. Adjust the six decay ratios or type exact values; NONLIN stores the ratios without using them.
Does Freeze hold every space forever?
Feedback spaces can hold an existing tail, with early reflections still live. NONLIN has no feedback loop, so its tail remains finite. Tone, width, ducking and mix stay available; decay-related settings can still affect diffusion limits in FDN and Plate spaces.
Why are some controls inactive?
NONLIN does not use feedback contour or tank modulation; PLATE does not use BLOOM. Duck timing is inactive at zero amount. Stored values return when the relevant processing is active.
How many presets are included?
43 factory presets across six banks, plus the Default host program. You can also save your own: choose Save preset... in the preset menu and they appear under User. Mix lock preserves the dry/wet balance while browsing either kind.
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FREE STUDIO TOOLS
Work out the next move.
Measure a mix or find a starting point. These tools run in your browser, with no account required.
GUIDES & JOURNAL
The technique behind Halo.
Practical explanations, build stories and examples to try in your own session.
PART OF THE COLLECTION
Halo, in a bundle.
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Hear it in your own session.
Halo. $29, or try it free for 3 days.
By buying, you agree to the EULA and Terms of Service.
Try free for 3 daysPerpetual license · 14-day money-back guarantee
Or get all 11 with Vitric Complete, $9.99 a month