creepy live glitch??

so i stream on twitch and multi stream to tik tok. this sound randomly played tonight only through tik tok, no one on twitch could hear it. my game audio is muted, & right before it happened, my camera froze for about 2 seconds but audio was fine. only 2 people were in the live, no active followers, likes, or gifts being sent. i use tik tok live studios through obs' virtual camera to stream. any clue what this couldve been? safe to say im a little bit spooked out lol cant find anything anywhere on what this could possibly be