OBS Stopped Working--Both Video and Audio

CRG223

New Member
I’m beginner-to-intermediate level at best with computers and software. I have a VCR connected to my computer in order to convert all my old VHS tapes to digital. I struggled quite a bit to get OBS working initially, but eventually after a lot of googling and trial and error I stumbled into doing it right. It worked fine, for both video and audio, for a couple months, using it almost every day. No issues.

Then today I opened it up, having changed nothing in the setup, nothing in the settings, and it doesn’t work at all. It neither displays nor captures the video. For audio it just gives me a loud, feedback-like hum. (The “Video Capture Device” thingie at the bottom still bounces around, though, like it’s receiving some kind of signal.)

It’s not the VHS tape. It plays fine on my TV.

I created a log and used the analyzer. It said “Custom FFMPEG Output” and “Mismatched Sample Rate.” I decided to try to address the former first. The recommendation was to set the output mode to “Simple.” I didn’t remember where I had it or why I had it where I had it—just that, again, whatever my settings were it had worked fine for a couple months—but I found what I think that’s referring to and set it to “Simple.”

I tried again, and there was still no video or audio. This time the log was even worse. It had the same two errors from before, and had added “NVENC Start Failure.”

I changed nothing, and shut down the computer entirely and restarted.

I tried again and there was still no video or audio. This time the log had dropped two of the errors and mentioned only “Mismatched Sample Rate,” which sounds like an audio thing, as if it saw no problems with the video worth mentioning.

In the log itself, among other things it says “warning: Found EOI before any SOF, ignoring. fatal: No JPEG data found in image. Error decoding video” a few hundred or thousand times.

So I’m stumped.

 

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Lawrence_SoCal

Active Member
Have you set your computer OS (and WinDefender antivirus) and OBS to auto-update? many (most?) users do... so saying you 'changed nothing', is not technically true as such users have authorized/directed their PC to make changes for them. And it is a Users responsibility to keep track of such.

With that said
11:54:20.055: CPU Name: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz​
ouch - ancient CPU for computationally demanding real-time video encoding. glad to hear you had it working for you

11:54:20.056: Windows Version: 10.0 Build 19043 (release: 2009; revision: 1288; 64-bit)​
Per M$ > IMPORTANT Windows 10, version 2004 will reach end of servicing on December 14, 2021. I recommend updating to 21H1 before 21H2 is released any day now

11:54:20.056: Windows 10 Gaming Features:​
11:54:20.056: Game Bar: On​
11:54:20.056: Game DVR: On​
why are those on?

Beware - log shows you have audio at both 48000 and 44100 sampling rates, - never recommended to mix, especially not on older under-powered CPUs

Is that a Black Magic capture device? if so, probably worth reading many of the threads on a required driver update to continue working with Win10.. not my area so not sure if this applies to you
 

Panginu

New Member
try changing output mode settings to advanced, check your bitrate and encoders that you are using.
 

CRG223

New Member
Whatever happened wiped out both the video and audio, so presumably it's some setting or whatever that applies to both.

I'm going through the suggestions one by one as best I can. No change in the results so far.

I found where to update Windows and clicked on the choice to accept the available updates.

I found Game Bar and turned it off. Didn't find Game DVR.

I found a setting that said 44,100 and changed it to 48,000, which will hopefully match wherever else it's 48,000.

I don't see Black Magic on the device. It says Mini AV2HDMI UP Scaler 1080p on it.

I changed output mode to advanced.

I found where bitrate and encoder are mentioned.
 

Panginu

New Member
Whatever happened wiped out both the video and audio, so presumably it's some setting or whatever that applies to both.

I'm going through the suggestions one by one as best I can. No change in the results so far.

I found where to update Windows and clicked on the choice to accept the available updates.

I found Game Bar and turned it off. Didn't find Game DVR.

I found a setting that said 44,100 and changed it to 48,000, which will hopefully match wherever else it's 48,000.

I don't see Black Magic on the device. It says Mini AV2HDMI UP Scaler 1080p on it.

I changed output mode to advanced.

I found where bitrate and encoder are mentioned.
if it says NVENC fail, try changing encoders to like H.264 or 264x
 
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