Description
After a few seconds, to a few minutes, the Zoom audio gets incrediably patchy and glitchy - maybe half a second in 10 seconds. It seems to match getting “W/AudioTrack: releaseBuffer() track 0xc0a87d80 disabled due to previous underrun, restarting” lines in LogCat.
Rather bizarelly it seems to be related to the amount of audio being transmitted. If I run the meeting with my iPhone as host and just listening to my keyboard clacking and mouse clicking then I get no issues.
I have setup my phone next to a radio in another room, and now can reproduce the issue within minutes.
If I leave the Zoom meeting like this then after a while our entire Android app crashes out as I guess Android has had enough of the buffer underruns.
I have another Android tablet connected to the same Zoom meeting so I am basically listening to the radio via two tablets - one running the “Zoom SDK Demo” app (fine) and our app (not so fine!)
So it appears that somehow I am getting a buffer underrun in the Zoom audio. But I cant find (yet) any other references to this on the devforum.
Which version?
zoom-sdk-android-5.2.42043.1112.
To Reproduce(If applicable)
Really hard to say.
Screenshots
If applicable, add screenshots to help explain your problem.
Smartphone (please complete the following information):
Android 9 on a Galaxy Tab A 2018 model tablet.
Sorry to hear you are running into issues with meeting audio. This would definitely be the first I’m hearing of this problem. Let’s take some troubleshooting steps and then get some additional information if the issue persists.
Is this issue still present on the latest version of the SDK?
Can you reproduce this in the Zoom client as well, or is it only happening with the SDK?
If the device is moved further away from the router it is connected to, the chances of data not being sent increases. Please ensure that your device is close enough to your router that this is not an issue.
If it is still not working after trying these steps, the following information will allow us to investigate further:
Have you noticed any loss in video data as well, or is it only audio data?
I dont have that file path showing in the Device File Explorer in Android Studio
Have you also tried looking in sdcard/Android/data/${PACKAGE_NAME}/logs?
Havent noticed a video glitch. Will rig up the phone (meeting host) to point at the TV tomorrow to test.
Thank you. This, along with the internet speeds you are reporting, will confirm whether or not there is an issue with connectivity. Since the type of streaming used by Zoom requires a UDP connection, network stability can play a major factor in scenarios like this. A speed of 130mbps is more than fast enough, but there may be more than just speed at play here.
Had a bit of trouble getting the latest SDK to work
Please let me know if there is anything I can do to help out on this end.
Emailed the Zoom logs to the email address requested. Hopefully that helps.
As additional info, when the “W/AudioTrack: releaseBuffer() track 0xc3b98400 disabled due to previous underrun, restarting” start becoming more frequent (at least one a second) the video lags as well.
Thank you for sending the logs over, I can confirm that we have received them. We will need to investigate this and let you know our findings. In the meantime, please don’t hesitate to reach back out if you need help with anything else.
Currently watching TV downstairs on the tablet upstairs using Zoom. No loss of picture (apart from the odd slow down/speed up). Only audio that is dropping out completely