Just as an FYI, I've run into a quite a few stereo USB sound cards that - even though they are stereo - only get recognized as mono on the input / record side by ALSA. Sometimes they can be forced to stereo mode by tweaking .asoundrc, and sometimes that doesn't even work. In my experience USB sound cards are a hit and miss to whether they actually get seen as stereo inputs. Lorne Tyndale > James, > > I decided to brink up jack on the tx end and had stereo passing over the > lan. > > Now to put openvpn in the mix and see if the PIs are strong enough to do > the whole show without undue strain causing audio issues. > > Thanks again for your help. > > all the best, > > drew > > On Thu, Nov 21, 2019 at 7:11 PM James Harris &lt;james(a)digital-light.co.uk&gt; > wrote: > > > Hi Drew, > > > > I had the same issue when I got 4.0.3 running, I can't remember if I found > > a workaround to the issue or it simply went away when I used openob-gui. I > > will try and get my development units out on Sunday to look back. For > > reference, I am using the Cirrus/Wolfson sound cards on the Pi at each end, > > I also have an x86 box set up that I configure as one end or other of the > > link when I want to work on new ideas. > > > > I have some vague recollection of comparing the all of the stored redis > > keys when openob was started on its own to when it was started from > > openob-gui, but there was a lot of faffing involved and it was too long ago > > for it to be clear in my mind. > > > > On a completely different point, during the summer I used the system for a > > week over a point to point WiFi link and one of the days, during a short > > period of packet loss, one end of the link couldn't read keys from redis > > (can't remember if it was local or remote) and the link fell over. I made > > copious notes at the time and have the intention of adding some error > > handling for that condition. I believe the behaviour at the moment to > > simply quit openob is incorrect and that an error handling routine should > > pick up the condition and retry the connection either a given number of > > times or for a given amount of time before returning to the same state as > > when it is waiting to establish first connection. So probably time for me > > to get the whole lot back out on the bench anyway. > > > > Regards, > > > > James > > > > > > On 21/11/2019 23:15, drew Roberts wrote: > > > > Well, > > > > for testing purposes, I have set up 2 Pis on a local lan. > > > > Transmitting PI has usb sound card and openob uses alsa invoked like this: > > > > /usr/local/bin/openob 192.168.86.149 test-tx-node test-link tx -a alsa -d > > hw:1 192.168.86.149 > > > > aplay -l gives: > > card 1: CODEC [USB AUDIO CODEC], device 0: USB Audio [USB Audio] > > Subdevices: 1/1 > > Subdevice #0: subdevice #0 > > > > Receiving Pi uses onboard sound card and openob uses jack invoked like > > this: > > > > /usr/local/bin/openob 192.168.86.149 test-rx-node test-link rx -a jack -jn > > openob -aj -jp jack_mixer:ICh2 > > > > It is also running jack-mixer and a few other toys. > > > > After hooking things up as desired in qjackctl, I see the mono audio in > > jack-mixer and hear it in my headphones plugged into the Pi's soundcard. > > > > Any thoughts on how to track down the mono issue? > > > > all the best, > > > > drew > > > > > > -- > > Enjoy the *Paradise Island Cam* playing > > *Bahamian Or Nuttin* - https://www.paradiseislandcam.com/ > > > > _______________________________________________ > > openob-users mailing list -- openob-users(a)lists.talkunafraid.co.uk > > To unsubscribe send an email to openob-users-leave(a)lists.talkunafraid.co.uk > > > > _______________________________________________ > > openob-users mailing list -- openob-users(a)lists.talkunafraid.co.uk > > To unsubscribe send an email to > > openob-users-leave(a)lists.talkunafraid.co.uk > > > > > -- > Enjoy the *Paradise Island Cam* playing > *Bahamian Or Nuttin* - https://www.paradiseislandcam.com/<hr>_______________________________… > openob-users mailing list -- openob-users(a)lists.talkunafraid.co.uk > To unsubscribe send an email to openob-users-leave(a)lists.talkunafraid.co.uk