hi, i'm sem :)

- producer, engineer, studio owner -

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My Name is Sascha aka sem. 'semtrax' is my Company. I’m an Audio Engineer, a Musicproducer and Studio Owner. I write & produce my own Songs out of passion and I produce, mix & record for others for a living. Hi-End-Sound, colorful arrangements and excellent Vocals is what I'm going for.


As Producer I have been involved in countless Musicprojects. A lot of that is Dancemusic from the early 2000s to the present. Big and smaller Acts, national and international Releases on many different Labels. Go check out my YouTube if you want to dig in :) Right now, in 2020, I'd love to focus on some of the ideas that kept sticking in my head over the last years. Let's see :)


Throughout my whole professional Audiocareer I have constantly been working for others on the technical side as an Audioengineer. Either in my Studio by tweaking and polishing Audiomaterial (Songs, Vocals, Sounds...) or as a recording and mixing Engineer for external Studios. I still do that, I love it. Call me if you need something to sound better.


Quality instead of Quantity.
Bad Sound kills good Music.
Go the extra Mile.
Put some Heart in it.


semCity Studio semCity Studio semCity Studio
semCity Studio semCity Studio semCity Studio


The idea for my dream Studio is simple: Basically a comfy Room to relax and be creative, stuffed with professional Gear for on Music and Vocals. A Playground for me and others with a clean look.


The construction of the Studio was not that simple. By now I have been building, adding and optimizing for 3 years. But that is time well spent! My Studio is the perfect place for all kinds of electronic Music, Vocalrecording and general Media-Content creation. Professional and State of the Art.
- Welcome to the semCity Studio 2020! -


The Studio is designed for high Quality Music- and Audio-Productions and Vocals (Recording & Postproduction). Cubase + Wavelab on a custom built Audio-PC. Speakers by Genelec and Amphion. An analog Vocal-Recording-Chain into Universal Audio Interfaces. Lots of Controllers and Fun-Stuff for Creativity and a fast Workflow. On top of that: a neat, hand-selected Library of PlugIns, Samples and Software. Synths, EQs, Compressors, FX-Tools.. you name it :)
Latest updates include Tools and Software for Video- and Photoediting, and creating Web-Content.

BTW: The Dogs Name is Charlie :)


For examples please check my YouTube Channel.


Music & Media

"produced by sem".


#full Production
#TV Spots
#Radio Ads

I am a creative Producer and highly skilled Audio-Engineer. Capable of realizing many kinds of Projects.




record. design. mix.



I have spent thousands of hours recording and editing Vocals. Music, TV-Shows, Movies, Audiobooks, Videogames, Radio, Jingles, DJ-Sets... I know how to create a clean, professional, Hi-End Vocalsound, perfect for your needs.



professional engineering.


Mixing & Mastering
For Music, TV, LiveShows, etc.

Audio Postproduction
Enhancing given Audiomaterial.

Your Song doesn't Sound the way it should? Or you need to record? I can turn the knobs.