Voice Control Goes Ultra-Low-Cost with Moonshine Micro
Voice interfaces have become commonplace, but they depend on either powerful processors or cloud services to do the heavy lifting. That has kept them largely out of reach for the tiny, inexpensive microcontrollers that power countless embedded devices. But now, a toolkit called Moonshine Micro has been developed to bring voice interfaces to microcontrollers. The new open-source framework is efficient enough to run on a tiny Raspberry Pi RP2350 chip, yet it is capable of running voice activity detection, speech recognition, and text-to-speech pipelines.
Moonshine Micro was tested on an RP2350 chip (📷: Moonshine AI)
Moonshine Micro is a lightweight version of the broader Moonshine Voice framework, targeting embedded processors and digital signal processors while retaining the core building blocks needed for real-world voice interfaces. The entire system fits within the RP2350's 520 KB of RAM, provisioning approximately 468 KB total through clever sharing of memory between each stage of...
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