I want to use arduino + mic for home automation, but I all tutorials I have seen are using a computer to process the voice data. In my case, I can't have a computer to do it, so I would like to know, if it is possible to do it only using arduino + mic.
Hi. About your question, I think that's possible but not efficient. Why that? Arduino platform is focused on controlling, not for processing. It has no OS likes a computer and many other embedded devices. So that you should still consider using a computer for your task. Nowadays, there are many Linux embedded devices with very cheap price and small size would be suitable. You can try with CHIP computer, OrangePi or very popular RaspberryPi ...
Good luck and have fun.