Assistance with muffling noise from my room
Here is the issue I am trying to fix. My roommate has crazy hearing and can hear me talk to my friends on discord from anywhere in the house. This upsets him because he can’t focus on anything in the house as long as he can hear me(this is stemming from other issues between us but not particularly relevant to this). I do not yell or holler or otherwise try to make excess noise but it doesn’t not matter he can still hear it. We have talked about how to fix this issue because as it stands I can’t comfortably do anything in my room at night nor call my girlfriend and hang out at night because he loses his shit ( slamming doors and yelling). He refuses to do anything to try and work on his issues so I am trying to fix it on my end. My question is what is the best way to muffle noise coming from my room?. I do have a deep voice but again I’m not yelling and I use headphones. I’m just looking for the best way to muffle noise from leaving the room.
Edit: For more context. I usually spend on average 2-3 hours upstairs at night and don’t stay up later than midnight on most nights. Activities include gaming with friends and Girlfriend or watching movies/shows with my girlfriend (long distance relationship)