Yes, I have full Admin rights.
Re sound I hear the music when entering the Tower 3D! main menu and I also hear the enviornment background (seagulls, vehicels) but I just dont hear pilots speaking.
Here are some screenshots of my sound settings. I didnt find any place where I could manage sound settings specifically for Tower 3D. On "Speech" settings I detected something interesting though. I read in other posts that it is recommended to use the voice "Microsoft Zira", however I hear noting when I select "Preview voice" whereas I do hear a voice using "Microsoft George" and some others. Unfortunately I still dont hear any pilots regardless of the voice I am selecting...
So, problem still not resolved for me. Appreciate any further ideas on this.