02-07-2020, 08:36 PM
I am using an Audio USB-Card with my Raspberry Pi 3B+. It works fine for playing audio from music streamed from my phone but as soon as I try to use the Phone feature in OpenAuto to call somebody the microphone I plugged in the microphone jack seems not to be getting a signal. I can however confirm the that the microhone works as I can see a signal when testing via the Raspberry system tools. Is there a certain configuation in the OpenAuto settings menus to ensure that the existing microphone jack will be used to stream the signal back to the phone? Any advice is greatly appreciated.