ESP32-S3 firmware that turns a $20 dev-board into a 2-in / 4-out audio DSP. UAC-class audio + browser-controlled PEQ / crossover / room EQ. Active 2-way speakers, embarrassingly cheap.
audio dsp uac esp-idf crossover pcm5102a tinyusb room-eq esp32-s3 parametric-eq bi-amp usb-audio-class
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Updated
May 18, 2026 - C