Press and hold space to begin voice recognition.
IT IS IMPORTANT THAT YOU SPEAK CLEARLY (DO NOT MUMBLE)
there are scripts to handle background noise, but it is recommended that you do this in a QUIET LOCATION. The bars to the left and right of the waveform indicate the level of background noise filtration that scratch is attempting. (IF THE BARS ARE BIG, IT'S TOO LOUD)
RELEASE THE SPACE BAR IMMEDIATELY AFTER DONE SPEAKING
Currently, it only recognizes three words: "bob" "Scratch Cat" and "Nuclear Meltdown" If you say anything else, it will attempt to connect you with the closest sounding word.
The scripts for this were surprisingly simple. I'd say how it works, but that would kind of ruin the magic. (there is a comment in the code with a summary)
PS: ALLOW SCRATCH TO USE YOUR MICROPHONE