Hissing noise from pipes, how to minimize/stop?

[phauroth]

Hello everyone.

I live on the 20th floor of an apartment building. Whenever the neighbours on the other side of the wall wash their dishes/open their faucet I heard this loud, annoying, hissing water noise.

Any idea what's causing it to be so loud? Anything that can be done to fix it or, at least, minimize it/dampen it a bit? Is it the shutoff valve?

Especially now that I need to work from home and I stay here all day, it's driving me crazy! And when they do it late at night, it wakes me up because it's just so loud.

Here's the link of a video I took which shows the noise:

View: https://www.youtube.com/watch?v=t8riHzp3GhA


If someone can help me out, I would really appreciate it!

Thank you so much for the help!