The noise occurs with every sound, using a browser or not, with audio or video, in youtube, in every format, with VLC and WMP. Especially when the volume is high.
The computer is old, almost 8 years, Dell XPS. The cd/dvd case/device stopped working the last couple of years.
I tried to record external sound with the same program I used before, but it says that the device is invalid. Is there a way to check anything about the audio device? In device manager I don't get any error.
I will try to record the sound and attach it.