Ircam Spat
Multiformat Room Acoustics Simulation & Localization
Source, Reverb, Setup tabs.
Sources View
Selected Source, Source On/Off and Solo.
Perceptual Factors (Source)
Acoustical Criteria
Options (Source)
Display (Source)
Radiation controls.
Axis & Omni filters
Reverb View
Selected Reverb, Reverb On/Off.
Perceptual Factors (Reverb).
Options (Reverb).
Display (Reverb).
Room Response
Setup View
Setup, Inputs.
Output Arrangement
Setup, Outputs (Speakers).
Output Routing
Stereo Pairs Width
Input/Output Section.
Preset/Parameter slots.
Parameter Morphing Slider with Automation.


IRCAM SPAT - The complete Room Acoustics Simulation and Localisation Solution

With more than a decade of research performed by the Acoustic and Cognitive Spaces Team at IRCAM, being at the forefront of scientific and technological innovations, the SPAT is the most advanced and sophisticated tool for room acoustics simulation and localisation ever designed, managing both spatialisation (source localisation) and room acoustic simulation in a truly consistent and visually logical way.


Designed for surround and multi-channel use, SPAT presents the option to setup the output arrangements providing a variety of stereo and surround configurations, including subwoofer configuration. With eight input and output channels available in SPAT, configurations up to 7.1 and 8.0 are feasible.


Each of the up to eight incoming audio channels is internally mapped to a range of Virtual Sources localized in a 3D space, and connected to a room (a reverb). Up to 3 rooms in parallel are provided, presenting the option to simulate complex spaces (coupled room acoustics).


SPAT introduce state of the art techniques for room acoustics simulation utilizing advanced perceptive models, concealing the complexity behind the actual algorithms, allowing for intuitive and accommodating user interaction capabilities.


The SPAT licence includes the IRCAM Verb as well.



We are happy and proud to announce that IRCAM Tools SPAT is the winner in the plug-in category of the Resolution Awards 2011. The Resolution Awards recognise quality and innovation in professional audio and the winning products in the awards have been judged to be outstanding in these respects by the best informed readership in the industry.


For the full feature set, hover your mouse over the small images to the right above.


Signal Processing Features

  • Input/Output gain controls for adjusting the levels before and after processing.



Preset and Parameter Handling


Preset/Parameter slots

To enhance the workflow the two Preset/Parameter slots, A and B, can be loaded with two full set of parameters at the same time. Apart from saving each preset, a "Global Preset" containing both the A and B settings, and the position of the "Morphing Slider", can be saved.


Parameter Morphing Slider with Automation

The Morphing Slider provides morphing between the parameter settings of slot A/B allowing for really creative and useful real-time tweaking. Enabling the Automation control button exposes the Morphing Slider to the host automation.



Processing Specifications

SPAT, as all Flux:: plug-ins, provide

  • Up to 8 channels Input/Output.
  • 64-bits internal floating point processing.
  • Sampling rate up to 384 kHz DXD (Pyramix DSP based).
  • Sampling rate up to 384 kHz for native (AU/RTAS/VST).




All major native formats are supported


  • Windows - XP, Vista, 7 all in both 32 and 64 bits (utilizing bridge sofware).
    • VST (2.4)
    • RTAS*
  • Mac OS X (Intel) - 10.6, 10.7 and 10.8 in 32 bits.
    • VST (2.4)
    • AU
    • RTAS*


*The RTAS version requires ProTools 8 or later.



The SPAT licence includes the IRCAM Verb as well.