Composer and producer A.R. Rahman’s 2025 Wonderment Tour, which covered North America, the UK, and multiple Indian cities, deployed Fourier Audio’s transform.engine across its live sound setup.
Each of these featured the use of Fourier Audio’s transform.engine, a VST3 plugin host server that lets live sound engineers run VST3 plugins with extremely low latency.
The transform.engine was utilised on the Wonderment excursion by both FOH engineer Riyasdeen Riyan and monitor engineer Mark Thomas, who were also pairing it with Fourier’s transform.suite ’25 software bundle on their respective DiGiCo Quantum338 consoles.
Thomas, who is also using a DMI-KLANG immersive IEM mixing system card on the shows, is applying the transform.engine primarily for his Valhalla and LiquidSonics reverb plugins, as well as the Oeksound Soothe Live dynamic resonance suppressor, which is part of the transform.suite ’25 bundle that he inserts on his console’s mix bus.
Reflecting on the use of transform.engine in his workflow, Thomas commented: “The major change that has happened is that the sonic quality I previously wanted with using these plugins depended upon using a server. With the transform.engine, I can load up exactly the plugins that I need and have the flexibility of using them with time-code synchronisation — so virtually zero latency.”
Citing the large number and frequency of snapshots needed, Thomas concluded: “We have a lot of changes in the plugins’ parameters, which the transform.engine handles very well. And the coordination of the plugin host within the video environment allows us to tweak settings on the fly without going into a third-party screen. So the workflow is quite very fast and flexible, compared to most other plugin workflows that we’ve previously used. It really is transformative.”