Usage Guidance Capturing using OBS and subsequent processing with VRD

[JohnB86]

I use OBS to record what has been captured.
I have an GTX1060 6GB graphics and recent Ryzen 5 build computer with 64GB ram and NVME storage

I am recording using NVENC HEVC at 1920x1080 60FPS using VBR and a Bitrate of 4000Kbps and Max Bitrate of 6000Kbps Using Prest P7 Best Quality, Tuning High Quality, and Miltipass Mode 2 Passes

I used to record to TS, as it made it easier to see the OBS file against the VRD output of MKV. Currently recording direct to to MKV from OBS. Does it really matter?


I am running VRD 6.63.7.836

My final output is MKV using HEVC codec and intelligent recode SIngle Pass.

The issue I am seeing is if I play the original OBS output file in Media Player Classic HC it is in sync.

If I streamfix it, which is set to insert fames, I get no mention of out of sync but I tend to need to adjust the audio between +90 and +180ms.

Adjusting sync in VRD so video and audio are synchronised doesn't always give an in sync output file when played back.

Curiously on the old I7-920 adjusting sync was a simple matter of adjust audio to video and done.

And I will throw in another thing I noticed. When playing back in Media Player Classic HC, if I download even a small file from the internet it can affect the sync,
so after several files it can be offset quite a bit. Fortunately pausing and re-starting the video resyncs. Never had a problem on the old computer. So I wonder if there maybe a Windows 10 issue lurking.

Now to the big question, should I as a matter of course streamfix all files that come out of OBS, or not.

While everything worked on the old setup, I never needed to consider any of this.

Any guidance would be appreciated.

 

[jmc]

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I used to record to TS, as it made it easier to see the OBS file against the VRD output of MKV. Currently recording direct to to MKV from OBS. Does it really matter?
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I recorded to H264.MP4 till I realized that MP4s are ruined if interrupted while H264.TS files are ok.
Don't know what happens to MKV files if recording is interrupted or HEVC use.
I think TS files are the safe option.


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https://videoredo.net/msgBoard/index.php?threads/where-or-when-to-do-the-qsf-h264-ts-file-to-h264-mp4-file-with-audio-ms-adj.37836/

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From the above message link...
Dan203
Ex-Senior Developer
QSF first, if needed, then convert and adjust audio in single output.

If you're doing a force recode, and not depending on the intelligent recode logic you can actually do all 3 in a single step. (QSF doesn't have access to some info needed for intelligent recode to work properly)

 

[JohnB86]

Thanks for that. I still have a lot to learn, so hope the software will live on for some time. It's the best piece of software I have found to meet my varing needs.