First to clarify this is NOT cave sounds, I know what they are and I have ambient sounds, music, and jukeboxes/noteblocks set to off. this is NOT just my friend trolling me, I have confirmed it multiple times we are both having the same issue. seemingly completely random and slightly creepy sounds play at random intervals during our playing. I've turned on subtitles to check back and some sounds have been listed, some haven't. sounds I've heard Include disc 11, player death/ hurt (despite being the only player in render distance and not moving), block placing, stone block breaking, and the experience ding. I've also been having issues earlier with the other player being invisible on the realm which I put in a separate bug report which got immediately invalidated. I am not being trolled I have confirmed it multiple times this is an issue on both ends.
Please provide a video of this issue occurring whilst the F3 debug screen is enabled.