<https://clips.twitch.tv/TangentialObliqueLobsterSaltBae>  

<https://clips.twitch.tv/CharmingBashfulAlfalfaRickroll>  

<https://clips.twitch.tv/NaiveKindGorillaGivePLZ>

(Disclaimer: These were not recorded on or uploaded from my computer.)

In the 1st video linked above, the water sloshing sounds heavily distorted and the same type of "noise" heard throughout that segment of the clip can be heard periodically throughout this person's videos, including the other ones I linked. 

~~I've been trying to help this person hear the problem with his audio, but he's not hearing it and~~ I'm not entirely sure what the cause of it could be or how one could even describe it. 

EDIT: He switched to different broadcasting software and finally hears how bad it sounds now. Now we just need to know the cause.