Support and discussion for all of Akai’s modern standalone MPCs including the MPC X / X SE, MPC Live 1, 2 & 3, MPC One / One+, MPC Key 37/61.
By MaxBLK Thu Jul 16, 2026 3:35 pm
Hello everyone, I've just built and launched the Wavetable Converter (Serum2MPC), completely FREE, zero install web app that instantly converts Serum wavetables into the exact (.wav) and (format.json) structure the MPC Wavetable Synth demands.

Source code on GitHub, no sketchy downloads, no uploading your files to a random server. It processes everything safely right in your own browser using your computer's power.

Web app:
https://maximilian-blake.github.io/seru ... converter/

README (user instructions) and source code here:
https://github.com/Maximilian-Blake/ser ... /README.md

Video description/tutorial on youtube coming very soon.

Thank you.
By MaxBLK Thu Jul 16, 2026 7:29 pm
Certified Beatz wrote:Looks great is there a reason you dont have a download utility i would be more interested in using that one..

Thank you so much. To be honest I have built a standalone app for both Windows and Mac but since the app is not signed both OS will flag it so to eliminate friction especially with the no tech savvy users I proceeded with the web app solution. With that said if you want a standalone app I can make it available.
By Certified Beatz Thu Jul 16, 2026 7:47 pm
MaxBLK wrote:
Certified Beatz wrote:Looks great is there a reason you dont have a download utility i would be more interested in using that one..

Thank you so much. To be honest I have built a standalone app for both Windows and Mac but since the app is not signed both OS will flag it so to eliminate friction especially with the no tech savvy users I proceeded with the web app solution. With that said if you want a standalone app I can make it available.


Yes sir! I would test on my test laptop of course :-D :-D
By MaxBLK Fri Jul 17, 2026 9:24 pm
jaymack wrote:can confirm it works. thank you!! the only minor issue is that it created a separate folder for each wav, which is kind of a mess in the wavetable folder.


Thank you Jamack, unfortunately that's the way the MPC works at the moment with the Oscillators file system.
I would have loved to put all the WTs under a single directory i.e. Serum 2 but the nested level allowed so far is:
"Oscillators" ➔ "Wavetables" ➔ "TheConvertedWT" and that's it.
By MaxBLK Sat Jul 18, 2026 11:52 am
The MPC allowed nested level so far is still:
"Oscillators" ➔ "Wavetables" ➔ "TheConvertedWT"
but now:

What's New in v1.1
The bulk export engine has been rewritten to perfectly match the MPC's native file architecture, saving you from cluttered directories.

Single "format.json" Architecture:
The engine now generates only one master "format.json" file per export batch, drastically reducing clutter and saving disk space. The MPC reads this single root file and applies it to every wavetable inside the folder.

Automated Directory Structure:
Your new wavetables drop right into the root of a new created "Serum" folder ready to be copy&paste inside the standalone MPC "Oscillators" ➔ "Wavetables" folders.

Smart Prefix Naming:
Bulk exported ".wav" files now automatically inherit their original parent folder's name as a prefix (e.g., "Analog_Acid.wav"), ensuring no naming collisions when compiling a massive master library.

Web app v1.1:
https://maximilian-blake.github.io/serum2mpc-wavetable-converter

Standalone app Windows and Mac v1.1:
https://github.com/Maximilian-Blake/serum2mpc-wavetable-converter/releases/tag/v1.1

Github wap app source code:
https://github.com/Maximilian-Blake/serum2mpc-wavetable-converter

Some screenshots...

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Thanks guys.
By Certified Beatz Sun Jul 19, 2026 1:29 pm
I didn't forget today the day I at least convert all of my serum libraries and transfer to both my MPC's i will at least give feedback on install and transfer..

Thank you again I will be installing desktop app on my test laptop which is stripped down for only testing..