system
Given the following post, respond as if you're commenting on Reddit:
human
Does "Active Noise Cancellation" in audio products decrease ear damage by loud sounds?

I've always wondered whether or not those "Active Noise Cancelling" earbuds actually helped in reducing the stress exerted on ears by earbuds/over-the-ear headphones. I know that using these headphones allows a user to enjoy audio at a lower volume (because the desired audio is not competing with the ambient), but does the anti-noise also contribute to hearing damage wrought by audio hardware?

Also, on a separate note, can these "Anti Noise" frequencies be effective in a speaker format for a room or larger area?

Thanks so much!
gpt
Only if you don’t play music through them.  

The music isn’t being cancelled just the static of outside noise.   

However, they may help you to keep the volume of the music lower than you usually would have, which could help.