I am using 3 PTZOptics NDI cameras with audio from the mixer to the line in on the cameras. (Not ideal, I know. I am in a different room and need the audio to be transmitted via ethernet.) Yesterday, 34 minutes into the live broadcast, the audio stopped on Facebook and YouTube. I was still hearing everything fine on the computer running obs. The audio meters in obs looked normal. The log file says "Source PTZ Cam 2 audio is lagging (over by 84.87 ms) at max audio buffering. Restarting source audio." When the audio stopped broadcasting the CPU usage was 38%, Memory was 20%, and GPU was 63%. Clearly, this is not caused by system overload. I rebooted camera 2 (which carries the audio signal). When it finished rebooting, everything returned to normal. I continued broadcasting for about an hour to see if it would happen again, but it did not. All of the cameras and computers are all set to the same ntp time stamp server. I've attached the log file. Any theories? suggestions? Thanks in advance!
Max Audio Buffer with only 38% CPU usage
- Thread starter Tpallot
- Start date
FerretBomb
Active Member
This occurs due to the audio device falling too far behind to be compensated-for, and/or the device sending bad timestamps. You can try opening the device properties and unchecking 'use device timestamps' as a possible workaround; generally fixes the issue when it crops up with cheaper devices.
I will check that setting. Thanks!