I have a Galaxy s20 Ultra. I also have an external microphone (Rode Videomic Pro). The microphone comes attached with a TRS connector. I purchased the TRRS adapter as well as the adapter that allows me to plug it into the USB C port on the Galaxy S20. When I start recording a message appears that audio is being recorded on an external microphone. However, no audio is actually being recorded. I'm sure there's some setting on the phone that needs to be adjusted. Can anyone help?