A1Audio A1StereoControl
Stereo Width
Brand profile · Germany, est. 2014
A1Audio
A1Audio is an independent VST developer known primarily for the A1StereoControl plugin — a highly regarded free stereo imager and mono-maker that became a go-to tool for engineers needing clean, transparent stereo width control without phase artifacts. The developer (Sebastian Schlingmann) operates as a solo developer with a commitment to providing practical, professional-quality tools at no cost. A1Audio tools address specific engineering problems with elegant, minimal solutions rather than feature-bloated commercial alternatives. The A1StereoControl in particular became a community staple for fixing over-wide mixes and checking mono compatibility.
A1StereoControl stereo imagerMono-maker/bass mono toolsTransparent stereo width controlFreeware mixing utilities
2014founded
Germanycountry
1products in stock
Freewaresegment
All 1 A1Audio products
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A1Audio, honestly
What A1Audio does well
- A1StereoControl is a community-standard freeware mixing tool
- Transparent, artifact-free stereo width processing
- Professional quality at no cost
- Clean minimal interface focused on the task at hand
What to watch for
- Very small catalogue — essentially two products
- Solo developer means slow update cycles
- Limited support beyond community forums
Questions about A1Audio
Where is A1Audio based?
A1Audio is the project of German developer Sebastian Schlingmann.
Is A1Audio good for beginners?
Yes — A1StereoControl is one of the most recommended free tools for learning how to handle stereo width and mono compatibility.
What is A1Audio best known for?
The A1StereoControl freeware plugin — a transparent stereo imager and mono-maker that became a standard mixing tool in the online audio community.