g3xpert and Garmin peeps...
I have a GMA245 and it functions well, audio is crisp and clear. That is until I start messing with audio recording. In order to record audio I have an NFlight bump in the wire going to a lightning to 3.5mm jack to my iphone.
I went through a stage where intercom audio was recording perfectly however audio coming through the radio (GTR20/GTN650) was silent in the recording (but present in my ear). During a debugging session I found that while my headsets were in stereo my helmet ANR (BOSE A20) was set for mono. I changed that to stereo, but still had the same issue. I then had done two things and I still need to duplicate behavior to find cause and effect. The two things that got recording back working were I disabled 3d audio and I plugged in my phone after things were booted.
I am trying to figure out what is going on, but it really seems like there is something going when the audio panel is booted with the phone plugged in, and when it is not plugged in. When the phone is plugged in after things are booted, I get a little clipping on my alerts but I get a full recording with all audio heard on my headset in the recording. Listen at 7:49 here for the audio alert clipping: https://youtu.be/RXosg0drXVo
When I plug the phone in first and then boot the audio panel the alert audio sounds clear again, but then I am no longer getting the audio from the radios (but I do get intercom) on the recording, but I still hear it in my headset. The audio record is plugged into my pilot seat headset so it is not an isolation issue our anything like that in the recording (but that is exactly how it is behaving).
Is the audio panel finding a short in my iphone connection and change modes or adjusting output levels? Any thoughts on things to look for? It is not a serious issue, just one of those things that I am trying to get my head around.