Low mic sound level with USB-C > Jack adapter

[AlexFr]

Hi,

Another one !

FP5 /E/OS - Wired headset - Fairphone USB2TRRS - Microphone level too low

Good morining, having done the move from FP3 to FP5 and used to do calls with Jabra headset attached, I bought the original Fairphone USB to 3.5 mm TRRS socket in order to use it with the FP5. My issue now ist, that the mircophone signal level through this adapter is far too low and the other side of the call does not underständ a word. I have not found a level matching dialoge as one can find i.e. in Windows OS. Would he happy about any idea. The headset is working with my FP3, so it is not…