Hacker News new | past | comments | ask | show | jobs | submit login

> Aren't ear-plugs noise cancelling?

No, they are isolating. Canceling is an active process using destructive interference of sound waves.

Since it is a different mechanism you have quite different properties. For example size/material/fit on ear have different constraints and you can selectively filter out different frequencies (many noise canceling headphones allow you to let voices through for example, or sirens/warning noises).




Consider applying for YC's Spring batch! Applications are open till Feb 11.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: