nRF5340 audio dk failure to maintain connection after updating Galaxy Buds2 Pro software

[slswks]

I was working with the nRF5340 audio dk gateway application to connect to my Samsung Galaxy Buds2 Pro ear buds. I was able to make a cis connection and stream data bidirectionally.

Then I updated the software on the Buds2 to RS10XXUDAWF4 and now I cannot stream data between the ear buds and the gateway. I see errors in the log that seem significant: "Unable to find ASE Control Point" then "No sinks found, Disconnected." Does anyone know what that means or what changed on the new Buds2 Pro software?

[ovrebekk]

Hi Ed

Would you happen to have an Ellisys Bluetooth sniffer (or something comparable) so you can see what is happening over the air? 

Otherwise it is hard to know what Samsung might have done on their side, to make it non functional between one update and the next. 

I will check internally if someone in the audio team happen to have the same airbuds, if so we can do some testing on our side to try and verify your findings. 

Best regards
Torbjørn

[ClinicalAudio]

Just reporting that I'm also having similar issues - still working to getting to the route of what's going on.

[slswks]

Thanks for the response. I'll look at getting a sniffer going to see what's going on. I wish I had a trace from before when it was working for comparison.

[slswks]

So, thanks again for your response earlier Torbjorn, I wasn't able to get a sniffer going but now I'm looking at this again since Samsung came out with a new software update for the Galaxy Buds2 Pro ear buds. I updated to R510XXU0AWI2 today and now connections to the nRF5340 audio dk gateway are very stable. However, when I try to stream to the buds from the gateway I2S line in the audio is choppy. If I interrupt the streaming by tapping the ear buds to pause and then tap again to un-pause, the audio is very clear and stable for a couple of seconds and then it starts to get choppy again. This behavior is very repeatable.

I configured the gateway for bidirectional mode but, for now, I'm just trying to make input from the line in work clearly. Do you, or does anyone, have any suggestions as to what I should try now. I feel like I'm so close to a working demo!

[ovrebekk]

Hi Ed

Good to hear you are having some progress at least

Can you let me know which version of the SDK and the Bluetooth controller you are using? 

Did you make any modifications to the application, or is it just the standard Audio application with some configuration changes? 

Would you be able to share the application log from the gateway when the issue appears? 

Best regards
Torbjørn