ESP32 Pie ASR runs live English speech recognition on an ESP32-P4: a 65.7M-parameter streaming Zipformer2 transducer whose weights were brought from 71 MB to 26.65 MB in 2 and 4 bits, running faster than real time on the chip alone.
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The project page flashes the firmware straight from your browser, and releases are published on GitHub.
The board's microphone in, the words on its screen as you speak, with no cloud and no neural accelerator.
Six voice-control demos ship with the firmware.
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