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An introduction to FLUX:: Ircam Verb, based on information from the maker and distributors: what it does, how to use it and who it may suit. It is not scored.
Halfway between reverberation and a spatialization engine – The state-of-the-art in room acoustics simulation and reverberation.
— FLUX:: official site
What is Ircam Verb?
Ircam Verb sits halfway between a reverb and a spatialization engine. The official text presents it as state-of-the-art room acoustics simulation and reverberation, bringing multichannel reverb into Quad, Ambisonics and Dolby Atmos deliverables as well as stereo.
It uses perceptual models from IRCAM, the French research centre, aiming for an intuitive experience. Input and output reach 16 channels, and Pro Tools HD is noted with Dolby Atmos and 3rd-order bus support.
The reverb's time structure is displayed and adjustable as Early, Cluster and Reverb, each with its own three-band filter, plus controls such as Room Size, Reverb Start and Reverb Gain.
The current Ircam Verb license also includes the two-channel Ircam Verb Session version, so lighter stereo-oriented work is covered too.
Up to 16 channels and Dolby Atmos support
Quad, Ambisonics and Dolby Atmos projects are supported; Pro Tools HD is listed with Dolby Atmos and 3rd-order bus support.
Channel routing matrix
I/O channels can be routed to match the control-room monitor setup, useful in surround and multichannel environments.
Early / Cluster / Reverb time structure
Early Shape, Early Min/Max and Distribution, and Cluster Min/Max/Distribution let you design how reflections appear.
Three-band filters and decay time
Room, Early, Cluster and Reverb each have three-band filters, and decay time can be set relative to high, mid and low bands.
Creative reverb options
Options include Infinite (freezing the reverb), Air Absorption, Modal Density, Panning, Width and Diffuseness.
Density setting
A High density setting switches between the standard and high-density reverb engines.
A/B morphing and automation
The slider blends A and B settings and can be recorded as host automation.
Specifications
| Item | Details |
|---|---|
| Type | Reverb / room acoustics simulation |
| Channels | Up to 16 in/out (Dolby Atmos support) |
| Input/output gain | +/-12 dB |
| Included versions | Ircam Verb (full) and Ircam Verb Session (2-channel) |
| Formats | VST, AU, AAX Native (per the official compatibility icons) |
| System | Windows 10/11 (64-bit); macOS 10.14.6 Mojave or later, Apple Silicon (M1-M3) supported. An iLok.com account is required (the iLok USB key is not required) |
What is included and system requirements
- Ircam Verb (up to 16 channels)
- Ircam Verb Session (2-channel version)
- Channel routing matrix
- System: Windows 10/11 (64-bit); macOS 10.14.6 Mojave or later, Apple Silicon (M1-M3) supported. An iLok.com account is required (the iLok USB key is not required)
- Two preset/parameter slots (A and B) plus a morphing slider between them, available to host automation
- Open Sound Control (OSC) support
- The FLUX:: shop advertises a free 30-day trial
How to use it
- Insert Ircam Verb on a track or bus.
- For multichannel use, assign I/O in the routing matrix.
- Set Room Size and adjust Decay Time.
- Check the Early, Cluster and Reverb display for how each part appears.
- Shape tone with the three-band filters.
- Balance with the original using Dry/Wet.
- Try options such as Infinite or Diffuseness if desired.
- Compare A and B settings with the slider.
Immersive mixes such as Dolby Atmos
It may be considered where reverb must be built around a space.
Post-production
It could add room acoustics to dialogue and effects.
Stereo mixes
The bundled 2-channel version might be lighter to use.
Sound design
Options like Infinite could produce long sustained spaces.
Who it may suit
- People working in immersive audio
- Those who want to design early reflections in detail
- Users looking for reverb for picture work
- Anyone who also wants a 2-channel version for stereo
Good to know before you buy
- An iLok.com user account is required (the iLok USB key is not required).
- Windows is 64-bit only and needs a graphics card with OpenGL 2.0 support; USB displays are listed as unsupported in the official specifications.
- The standard FLUX:: license does not include VS3 (for Pyramix / Ovation); it is sold separately by Merging Technologies.
- Dolby Atmos / 3rd-order bus support in Pro Tools HD is as stated on the official page.
- Also included in the All Plugins Pack and Complete Pack subscriptions.
How it differs from similar products
We do not pick a winner; the official figures are placed side by side.
FLUX:: Ircam Trax
Ircam Verb is a reverb/room-acoustics engine with up to 16 channels at $199. Ircam Trax, also IRCAM-derived, is a three-module voice and sound transformation suite (Transformer up to 8 channels) at $399.
Price
$199 (FLUX:: official site, checked 2026-10-27). Prices can vary by region and promotion, so check the official page before buying.
See Ircam Verb on the product page
Sources: flux.audio shop.flux.audio (checked 2026-10-27)
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