The fully self-contained voice control gadgets described in my previous post have been in use for almost a year now, and overall, I am still satisfied with how they simplify interaction with my home automation setup. I have made two major changes though, which are reflected in the updated Github repository. (1) Supporting some off-the-shelf hardware variants enables cloud-less and solder-less deployment. (2) Moving from using the Rhasspy-integrated text-to-speech engine to a standalone text-to-speech engine makes this project completely independent
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Cloud-free voice recognition for OpenHAB
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
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