I wanted a few small units for speech-to-text (voice recognition) and text-to-speech (voice output) for my home automation environment, which includes OpenHAB and Rhasspy. Previously, I have used Rhasspy satellites built with a Raspberry Pi and a small speaker (described here), but now I wanted something simpler and more compact, and with the voice recognition happening in the unit itself, without streaming audio to a server, not even to an in-house server. Espressif offers a ready-made speech recognition component for
Continue reading