My car makes a new sound. Can you help me?

[Don]

Hello everyone!

Since a couple of days my engine started ''rattling'' its a sound in the background of the engine, and its getting worse pretty fast so I am starting to get worried.

I am not a mechanic so maybe you guys recognise the sound and can tell me what it is.

The sound it makes
The sound I mean is the ring-ring-ring-ring sound
It does sound naturally in some way but it never did it before the ringing/rattling goes together with my RPM.

I hope you guys can tell me whats wrong