audio denoise

This add-on can remove the quasi-stationary background noise in real-time when the users watch content online.
It aims to remove the noise in old lecture and speech records.
It cannot remove noise in a music video.
It cannot remove noise if the noise is non-stationary, for example, car horns.
It cannot remove noise if the power of noise is comparable to the voice, for example, a record of a conversation nearby a construction site.
It will need some computational power and cause a delay in the soundtrack.
The add-on is free. However, I would appreciate it if you donate by the following link:
https://www.paypal.com/donate/?hosted_button_id=U8DYZTRVBAXJA