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An introduction to Sonnox Oxford Inflator, based on information from the maker and distributors: what it does, how to use it and who it may suit. It is not scored.
The Effect control sets the amount, Curve sets the harmonic character.
— Sonnox official site
What is Oxford Inflator?
Oxford Inflator raises perceived loudness and density by adding harmonics rather than reducing dynamics. It can be used on tracks, buses or the full mix.
Because it does not compress or limit peaks, it is described as avoiding the pumping associated with limiters while preserving dynamic range.
The Effect control sets the amount and Curve sets the harmonic character, from subtle warmth to heavier saturation when driven hard.
Direct and Band-Split modes let you choose based on DSP load or the sound you want.
Effect and Curve
Effect sets the amount and Curve the harmonic character, allowing quick direction setting.
Preserves dynamics
It raises perceived loudness through harmonics instead of peak reduction, which may suit keeping dynamic range.
Virtual headroom
It is described as creating virtual headroom to help avoid clipping on sudden peaks.
Direct and Band-Split
Two modes chosen by DSP load or desired sound; Band-Split processes by frequency band.
Wide range of uses
Suggested uses include presence on vocals and solo instruments, punch on drums and overall loudness on the final mix.
Specifications
| Item | Details |
|---|---|
| Formats | AU, VST3, AAX Native (Pro Tools 11+), AAX-DSP |
| macOS | 10.14 Mojave or later |
| Windows | Windows 10 (64-bit) or later |
| License | Two simultaneous activations (iLok) |
| Modes | Direct / Band-Split |
What is included and system requirements
- License (two activations)
- Free trial and 14-day money-back guarantee
- Also part of the Sonnox Elite Bundle
How to use it
- Insert on a track, bus or master.
- Start in Direct mode.
- Raise Effect gradually.
- Choose harmonic character with Curve.
- Switch to Band-Split if needed.
- Compare with bypass at matched level.
Vocal presence
A touch on vocals may help them sit forward.
Drum punch
It may suit a drum bus when a tighter feel is wanted.
Master loudness
It may be tried on the final mix to raise loudness without crushing peaks.
Who it may suit
- People wanting more perceived loudness
- Those who dislike limiter pumping
- Those wanting quick, simple control
Good to know before you buy
- A free iLok account is required.
Price
$159.99 (Sonnox official site, checked 2026-10-27). Prices can vary by region and promotion, so check the official page before buying.
See Oxford Inflator on the product page
Sources: sonnox.com minet.jp (checked 2026-10-27)
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