Dual pc NDI audio/video desync after OBS 26 update

Limeaway

New Member
https://clips.twitch.tv/SavageGloriousDotterelGivePLZ

Anyone running a dual pc setup with NDI? Are you experiencing audio sync issues after updating to OBS 26? Last week after updating I fired up the stream and was getting no audio output from either the game or mic despite the audio mixer on my streaming computer registering audio inputs via NDI. Video worked fine.

I realized my NDI plugin was not the lastest version, so I ended up updating the plugin on both computers. After restarting the stream audio was finally going through, but now with a 20-30 second video delay. After that I went ahead and uninstalled my ndi plugins on both computers and did a clean install. The clip I linked is the first stream I did since the clean install of my NDI plugins (4.9.0). You'll see in the video that the audio/video sync is significantly better but I still have very noticeable video delay. This was not the case prior to the OBS 26 update. Anyone got ideas on what's going on and how to fix it? Thanks


Gaming Computer (Ryzen 2600X, GTX 1070 Ti)

Base Resolution: 1920x1080

Output Resolution: 1280x720

Downscale filter: Lanczos

Common FPS Values: 59.94

I have Dedicated NDI output filters applied on both of my audio sources (DAC and mic)


Streaming Computer (i5-7300HQ, GTX 1050 Ti)

Encoder: NVIDIA NVENC H.264 (new)

Rate Control: CBR

Bitrate: 3200 kbps

Keyframe Interval: 2

Preset: Max Quality

Profile: main

GPU: 0

Max B-frames: 2

Base Resolution: 1280x720

Output Resolution: 1280x720

Downscale filter: Lanczos

Common FPS Values: 59.94


I have three NDI sources that are setup on my streaming computer which are NDI Source, mic, and game audio

Bandwidth: Highest (and audio only for mic and game audio)

Sync: Source Timing

Latency Mode: Normal (safe)
 
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