girlvoice is a collaboration between @faited who did the CAD for the enclosure, and acoustic simulation to pick a driver, @weaponized_sage who came up with the idea and is currently working on the gateware, and myself doing the design, system architecture and PCB.

girlvoice has a 5W speaker, smartphone amplifier codec, a touch display and a Lattice FPGA. A big goal for this project is for Sage to learn more about implementing DSP pipelines in digital logic. Using a crosslinkNX FPGA makes this lower power than using a MCU, so girlvoice can run off a battery.

My partner at the time
@weaponized_sage had the idea for this a few years ago during the pandemic after getting tired of no one being able to hear her through a respirator. girlvoice allows you to amplify voice and make it sound weird and fucked up, or you can use it to adjust pitch.

And this is where the bass is stored.
Looking forward to more amazing DJs stress testing this design, especially at our Hardcore / Terror event in November~

And here is the setup in action, two batteries powering our two 2x 15” paraflex sub + synergy horns 10kW soundsystem for 8h straight without any noise or smell from nasty gasoline generators.

I still had connections to Chinese EV charger manufacturers, and it was easy to locate the right building blocks for this project. At it's core, the inverter consists of two 8kW 48V -> 400V LLC boost converters, a 22kW SPWM IGBT inverter and a embedded linux system for monitoring and protection.

The batteries are design for easy assembly and mechanical protection. Fait did the CAD for these gorgeous CNC machines wooden boxes that slide in two packs. Besides that, each box has its own BMS from AliExpress, along with a 160A circuit breaker and active ventilation.