Oxford Envolution HDX is an AAX envelope shaper plugin by Sonnox that controls transients and sustain separately across frequency bands. It runs on the DSPs of an Avid HDX system to reduce load on the host processor.
Oxford Envolution HDX is built around frequency-dependent control. Its transient and sustain sections can be adjusted independently, so you can change the envelope of drums, piano, guitar or any other percussive material. A tilt mode and a more parametric focus mode let you choose which frequencies are processed. The plugin can be inserted on a track, bus or master output, and its DIFF button lets you solo the effect for more extreme, creative results.
Envolution gives you separate transient and sustain controls, each applied per frequency. Boosting transients can add presence and a sense of distance to percussive sources. Boosting sustain can make the ambience of a recording bloom, while cutting it produces quick, precise gating.
The tilt mode works across a broad range of frequencies, while the focus mode behaves more like a parametric filter, letting you target a narrower band for processing.
Envolution can be used in parallel without phase cancellation, so you can blend the processed signal with the dry signal. The DIFF button solos the effect, which helps you hear exactly what the processing is doing. Engaging DIFF is also the route to the negative ratio compression effects the developer highlights for creative use.
The warmth control adds harmonic saturation and tone shaping, and it helps prevent excessive output levels.
Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.
| Developer | Sonnox |
|---|---|
| Type | Plugin |
| Category | Envelope Shaper |
| Formats | AAX |
| Operating systems | Windows, macOS |
Oxford Envolution HDX is available in AAX format only. It is designed for Pro Tools with the DSPs of an Avid HDX system.
The plugin is listed for Windows and macOS. On macOS, the developer notes M1 compatibility using Rosetta 2.
You need Pro Tools 11 or later with AAX DSP, an Avid HDX system, and iLok authorization, either through a USB 2 or 3 key with the latest drivers or through iLok Cloud with an active internet connection. Windows requires Windows 10 or later, and macOS requires OS X 10.12 or later.
Sonnox states there is no difference in sound quality between the Standard and HDX versions. The HDX version is intended to keep processing off the host CPU.
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