Audio Processing Unit

As the owner of both an iPhone 13 and quality IEM wired headphones, I often grieve the headphone jack in my phone. The common solution of adapter dongles I find to be clunky and take up my charging port simultaneously! As a compromise, I designed a wireless accessory to give me both a 3.5mm port AND a variety of other features (transparency, physical controls!) The project will span the complete engineering lifecycle: from initial breadboard validation and mixed-signal PCB layout to 3D CAD enclosure design and active DSP microphone mixing.