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Welcome to Schwebung Mastering, a studio operated by Stephan Mathieu, specialized in preparing audio for analog and digital products, streaming media, and restoring archival material.

While my core clientele is artists working in electronic, electroacoustic, and contemporary classical music, I have collaborated with producers running the gamut of modern recorded music. Many of them 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 between 1990-2017 and have released 60 albums of my music. My work has been performed at Sónar, ATP x Primavera Sound, CTM Berlin, Mutek Montreal, MITO Settembre Musica, etc. I have created site-specific sound installations for festivals, spaces, and places across four continents and worked as an associate professor for Sound in several international institutions. You can read about my approach to mastering  here. 

I’m operating Schwebung Mastering from the HICOG Estate heritage site in Bonn, Germany.


Please contact me if you want to book a mastering session. I look forward to discussing your project with you,


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