Peter Lemken

I have a OnePlus 9 Pro and I can connect an external audio interface via OTG cable. The OP9 provides enough power for the 48V phantom power of two condensers. The microphones work in OpenCamera, but the recording quality is just abysmally bad. I installed a simple soundrecorder app and in its configuration I could choose lossless uncompressed PCM audio at 24Bit/96kHz and the result sounds just as good as if I had recorded it with the audio interface connected to my laptop and record with audacity....

Please help me out here. By changing settings in /etc/media_profiles.xml (replacing the original one) I was able to change video recording codec to HEVC/H265. Audio is aac - stuck at 96kBps, even though I changed the minBitrate and maxBitrate in the xml way beyond those 96kBps. When I can add H265 in Open camera settings, this obviously came from the changed media_profiles.xml values. From what I can see you use that file to offer the configuration option as laid out in Open Camera's preferences.xml....