Microphone suddenly quiet (laptop)?

Gu
2

I have the problem that I can hardly be heard in online sessions. I have already tested this myself with a recording on my laptop and my voice can only be heard very softly. I have already set the level to maximum in the settings, but it still doesn't work. Does anyone know what could be the reason. On Friday everything was still working perfectly. It's an internal microphone, if that helps.

Ph

Crumbs in the opening?

Gu

Thanks for the answer, I blew in, but unfortunately it still doesn't work. I'm now guessing a software problem, I've now found out that sometimes it works and sometimes it doesn't, it must be due to some setting.