[IDEA] Analog audio for .flac/mp3 and hdmi audio for .mkv/avi

[Trinket]

I was wondering if it was possible to make a script that changes audio output according to the file type that is being played.
The idea behind this is having my tv connected via hdmi and my audio system connected to the analog output.
If I play music I don't want my TV to be turned on and because of that HDMI is useless for it, I want it to play through the analog output.
Does anybody know anyway to control the output? I don't know where to start searching for it and I couldn't find anything similar.