Removed USB power noise.

A project log for Modular Multichannel Stereo Audio Mixer

A modular mixer where it's easy to add more channel strips.

david-moreno-monteroDavid Moreno Montero 06/02/2023 at 08:300 Comments

I received my set of 78xx linear regulators and did some fast test to check if it removes the USB power noise.. and it does!

So I set together a fast protoboard to try it live with the full mixer, and the noise level is now non existant! Amazing!

Now I have another problem to solve and is that I'm filtering out low frequencies. Quite probably is the DC bias removal. Need to investigate.