Alright, kinda lying, the project is kinda dead.

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Yeah, turns out that making a giant project alone with no real knowledge of the underlying architectures used in the industry is no trivial matter, especially when you're a broke student and can't afford neither the test equipment nor the actual chips and PCBs.

Well, bad news, I can't really work on the USB Mixer anymore : too much to do in real life, too much to do on that project, no clear way to progress ... Yeah. This is over....

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Just kidding, i'm carving stuff out of this project to make smaller bite-sized (still huge) projects. As of February 2025, two "mini" projects will be released to the world :

• Apollo, an analog front end for a sound card, capable of turning your puny mic output to crystal clear 192kHz 24bit audio* (*or will, someday). Current versions are to be tested, but the circuits were simulated, PCBs are routed, and the components are already chosen. I just need to buy and solder everything.

• Benzaiten, a USB Codec board, which will be implemented alongside Apollo. Capable of translating analog signals to 192kHz 24bit, sending it over USB, and recieving sound back from USB to send it out in PDM (no DACs!)

I'll update this text once their hackaday pages are finalized so I can link to them.

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Why am i doing this ?

Same thing for Benzaiten, the bridge can be individually tested rather easily, I can implement features that are not necessary for the USB Mixer but make life easier (debugging, reprogramming over USB, PDM output etc.).

Also, and that's the big thing, seeing actual progress being made is such a boost to morale !

As always, if you have any question or are interested in the project / want to help me, you're free to contact me, either here or send me a mail : qorbaq.engineering@gmail.com

Cya !