NDI device - issues with audio + video

jmluettgen

New Member
Using OBS 27.2.4 on a late 2020 iMac (3.8 GHz 8-Core Intel Core i7, AMD Radeon Pro 5500 XT 8 GB) and I am having an issue with stuttering audio from an NDI Device but only when accompanied by video from the same camera. Audio input to the PTZ camera is through the 3.5 mm port from an iOS device (3.5 mm male-to-male connection). When I add an NDI Device (PTZ camera; bandwidth = audio only) to a Scene with a web cam (Logo C920) the audio is fine. In another Scene where the NDI Device is the same PTZ camera (bandwidth = Highest), the audio is very poor and stutters immediately. Switching back to the web cam gives good audio. I have stripped down the configuration to the camera connected directly to the computer and the issue is still present. I am able to get good audio using the same equipment with NDI Video Monitor. I am checked the audio sample rates (all 48 kHz). No other audio devices are present these or other scenes. The issue is the same on a Windows laptop substituted for the Mac. I must be missing something in OBS as hardware appears to be good and NDI Video Monitor does not have the same issue. Thanks in advance for your advice.

Joe
 

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