I recently bought a Sony HDR-AS300 action cam to record myself flying for later training review. I also bought this ATC cable hoping I'll be able to record the audio I'm hearing through my headset. Since my cam has a microphone jack, I connect the cable to the camera through its microphone jack as shown in the Amazon product page.
I've since tried this setup on two flights - once with and once without a power bank connected. Both times, the camera recorded me transmitting but didn't record ATC or anything else coming through the headset. I could hear everything just fine in my headset - which is connected through this cable.
Does anyone know what's going on and how I can fix it?
If not, what do you use to record headset audio and how satisfied are you with that?