The noise I experienced yesterday was painful. The neighbors started karaokeing at 2:30pm and didn't stop until 11:20pm. And they had it on blasting loud, so I was sure to hear it all and not miss a moment.
If I was rather ambivalent about karaoke before, I now possess strong unfavorable opinions.
I took this video before I new it was going to be an all day karaoke party. The video's not much to look at, but it's about the sound, anyhow.