Make possible to switch from "pc mode" to any effect and vice versa via voice command

Hi i have zero experience in programming and stuff. I'm making a setup with led strips behind my desk, monitor and the tv.
I wish i could, via voice command switch from "pc mode" where it reacts to the image to any effect and vice versa.
Also be able to change the layout of the leds like when using the monitor only... the leds from the tv turn off but the bottom leds stay lit to add to the monitor leds, etc...
Sorry for my english, i'm from brazil...