I'm having the issue as well.
- Wsjt-x on Windows with qmx works fine
- Wsjt-x on rpi with qmx works
- Ft8cn with kx3 works
I've got both the android system volume and the ft8cn volume up to 100%.
I have not tried a second android device yet.?
Here's the important clue. On wsjt-x with rpi one can select L, R, mono or both. L works but R doesn't.?
I suspect ft8cn is using the right channel and qmx uses the left. Probably either could resolve it by using both channels. I've made minor PRs to the ft8cn code before (not yet accepted) so perhaps I'll look into this. But it seems possible Hans might be able to address it as well.?
