Not sure if this is the right area to post this. I built my son a Kodi box for Xmas using a pi3 and libreelec 7.0.2 He is running it through a panasonic projector, but the projector has no speaker. I am trying to find an economical way for him to get stereo or surround sound through the headphone jack or if it is even possible.
One other quick thing. Is there a way to stop my pi3 from switching back to a different input each time I activate or use my wireless keyboard? My Kodi is set for hdmi 3, and my regular tv is hdmi 1. If I go to use my Kodi it automatically goes back to hdmi 1 instead of staying on hdmi 3.
Thanks in advance!