PS4 Mic suddenly stops working?

As of today, i like my headset microphone on the PS4 no longer works. It is recognized, but can't even do the microphone calibration. This message is also displayed to me when I join a party. Do you know what to do? To the best of my knowledge, I'm not muted anywhere. (Headset: Hyper X Cloud)

Hold down the PS button, click on Sound / Devices and mute it there.

So that doesn't work either?

Otherwise take a look at https://www.4gamers.net/support/4gamers-support-article-microphone-not-working-ps4/

Was that the problem?