Just playing with the EasyVR shield from Sparkfun.
The supplied electret microphone is very sensitive.
I sometimes find that a problem.
It detects a creaking floorboard or fahrting at 5meters distance as a word.
Inbuild trigger/wordsets are therefore useless for e.g. controling lights.
Better results with adding/training your own commands in two or three steps.
First a trigger word, then a command.
If the command is not heard within a few seconds, things are reset.
Still working on the software...
Leo..