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Welcome to Schwebung Mastering, an independent studio operated by Stephan Mathieu, specializing in preparing audio for analog and digital products, streaming media, and the restoration of archival material.

I’m operating Schwebung Mastering from the HICOG Estate heritage site in Bonn, Germany, collaborating with artists and labels running the gamut of modern recorded music. Most of my clients have chosen to work with me due to their appreciation of my artistic sensitivity to sound.


I have a background as a musician and producer working in electroacoustics. You can read more about my approach to mastering here.


Please browse this site for everything you need to know if you want to work with me on your project.



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