I've been off air for a while but in a previous version of my remote operated ham shack I've hod things working.... But I can't seem to get back to where I was before.
The basics are:
I use SSB voice on the Mac with a couple of source/sinks setup on the pi. I route audio from the no machine mic source to the 991, and I route audio from the 991 to a dummy sink (default) routed to no machine speaker out via a loopback module.
On my Mac I use a headset or laptop speaker and mic selected in no machine and can use SSB voice without issue.
For free dv I created 2 black hole audio devices for routing on the Mac. So free dv audio is connected to a physical mic, speaker and 2 virtual audio devices that are connected to no machine.
On the 991 I use the USB inputs/outputs for audio in/out and this is all working with SSB voice.
On FreeDV I enabled Analog mode and have the USB option checked off in conjunction with VOX on the radio. This seems to work just fine so I'm thinking I have all the routing correct.
I switch to Digital mode and the TX breaks.
My RX is just fine, but with TX it's as if I get no audio modulation to the 991. Yet I get voice when I do SSB and I get a signal from FreeDV if I use the analog mode.
I used to use VOX in place of PTT and it used to work for me but now the radio never triggers TX in digital mode.
I've looked at settings over and over - not sure if something isn't right on the Mac TX audio, the forwarding of the tx audio over the link, the audio inputs on the 991 or something in the FreeDV setup.
Thanks for reading, just spit balling here to see if anybody has suggestions for something I've overlooked or a good way to pinpoint exactly where it breaks down.
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