Not the OP but I've been tinkering with the same concept (24/7 processing).
'm using vosk browser: https://github.com/ccoreilly/vosk-browser
To do speech to text locally and it works very well for English.
'm using vosk browser: https://github.com/ccoreilly/vosk-browser
To do speech to text locally and it works very well for English.
You can probably try vosk-api on the desktop-grade machine. You need big models from https://alphacephei.com/vosk/models, they require like 8Gb to run but they are much more accurate.