Low Call Volume on Fairphone 4 with /e/ OS – Any Fix?

I have a problem with /e/ OS on my Fairphone 4. I installed /e/ OS on the device about a year ago. However, calls are always very quiet. The speaker and Bluetooth headset work fine, but the device itself is way too quiet, even though the volume is set to maximum.

Is there any way to adjust this?

I would be very grateful for any tips.

I posted a very similar request here I March, so also keen on funding out about how to get the volume up and the sound quality improved (right now it sometimes sounds like the audio in the normal loudspeaker, the one you press against your ear, is distorted because of being set to high).

Hi! After the update to /e/OS 3.0 yesterday the issue with the volume in “normal” calls being low and distorted persists like before. Any tips or fixes?

Maybe try here where everyone will be looking:

Posting it there once would have been enough…

Thanks Mihi, I’ll do that!