Audio not synched and echo..

[H2OGuy]

Hi. I'm having several audio problems, but the biggest at the moment is that when I record from VHS to my HDD, the preview audio is delayed from the video. I'm having other audio problems as well, but if I can fix this one first, it might fix the others, too. The other major problem is that when I do record VHS to HDD, the audio is delayed and has an echo.

Clearly this is a problem.

I've never begged in a Forum of any kind before, but I will here... please, if you know any solution, let me know!

I'm using:

Video Capture Device:
AV TO USB 2.0
Output desktop audio (DirectSound)
Use custom audio device
USB 2.0 MIC

I was going to upload a video demonstration but apparently native mkv files can't be uploaded.

Using
Windows 10

Log file: https://obsproject.com/logs/-GejUQ6NIlM9Qw4o

Thank you! Oh, and this is purely for converting VDH to digital. No streaming.

 

[H2OGuy]

Hi. I'm having several audio problems, but the biggest at the moment is that when I record from VHS to my HDD, the preview audio is delayed from the video. I'm having other audio problems as well, but if I can fix this one first, it might fix the others, too. The other major problem is that when I do record VHS to HDD, the audio is delayed and has an echo.

Clearly this is a problem.

I've never begged in a Forum of any kind before, but I will here... please, if you know any solution, let me know!

I'm using:

Video Capture Device:
AV TO USB 2.0
Output desktop audio (DirectSound)
Use custom audio device
USB 2.0 MIC

I was going to upload a video demonstration but apparently native mkv files can't be uploaded.

Using
Windows 10

Log file: https://obsproject.com/logs/-GejUQ6NIlM9Qw4o

Thank you! Oh, and this is purely for converting VDH to digital. No streaming.

I mean VHS to digital.

 

[koala]

Make sure you're directly recording the audio from the capture device and no other audio source. For this, set every device from Settings->Audio->Global audio devices to "disabled".
In the video capture device source you set up for your vhs capture, scroll to the bottom and set "Audio Output mode" to "Capture audio only". Disable "Use custom audio device". Now the audio from your capture device goes directly to the recording. It's not even going to your PC/Laptop speakers. And no other audio is going to your recording. To enable you to monitor this audio, right-click the capture device audio entry in the Audio mixer dock of OBS ->Advanced Audio properties and set the Audio Monitoring entry to "Monitor and output".
Now you should also hear your vhs on the monitoring device, which is usually Windows Desktop audio (Speakers). If you cannot hear it, go to Settings->Audio->Advanced->Monitoring device and explictly set your speakers or headset device.

"Monitoring" means audio is going to the monitoring device, and "output" means audio is going to the recording.

Another thing:
According to your log, your capture device seem to output 640x480 video. If you just want to record your VHS and nothing else, set your canvas and output resolution to exactly this resolution to record 1:1 what's captured by the capture device without rescaling. So set settings->Video->Base (Canvas) and Output (scaled) resolution both to 640x480. This will also help performance, because your system is already struggling with the auto-detected resolution that are slightly higher.

 

[H2OGuy]

Thank you!

I apologize for the delay in getting back to you, my computer burped and I had to reset it from scratch.

Two issues have come up with the new settings.

First, the playback is terrible now, it skips and jumps and generally doesn't show it without lines and such. It was clear with the previous settings.

The audio is a different issue. When I disable "Use custom audio device" I get no sound at all. It's not just speakers, because the audio display shows nothing coming in, and monitoring it has nothing either.

Any ideas?

Thanks for your help!

 

[H2OGuy]

Sorry for the additional post, but I remembered some details outside of the 10 minute edit timetable. When I do record audio with the (wrong) settings, there's no longer any echo, but it's delayed by a good five seconds. I don't know if that matters at all when I use the correct settings, with no audio.

Thanks again!

 

[Lawrence_SoCal]

Regarding playback/... are playing old recordings (pre-rebuild) now a problem that previously weren't?
If yes, then I'd guess a related codec wasn't re-installed (or a problematic one installed). Or you are using a different player?

 

[H2OGuy]

I'm using whatever the defaults are for the installation. I don't know any more details beyond that.

I'm using Windows Movie Player for playback.

 

[H2OGuy]

Regarding playback/... are playing old recordings (pre-rebuild) now a problem that previously weren't?
If yes, then I'd guess a related codec wasn't re-installed (or a problematic one installed). Or you are using a different player?

Some interesting data.

I tried playing the video through VLC, and it is still delayed.

The weird part? At the beginning of the recording, the audio is perfectly in sync. However, the farther into the recording, the further off the video/audio gets, until it's off by multiple seconds.

Even if I begin the recording, say, 30 minutes in, the audio is off. This is extremely weird. I've tried two different recordings, with the exact same results, so it's not the tape recording.

Very strange! Any ideas?

 

[H2OGuy]

Hey everybody, I got it working!

I'm not sure what I did differently, but I followed everyone's instructions to a T, and was able to record a whole VHS to my HDD with only the slightest of come-and-go audio drift.

Thanks to everyone who helped out, this is huge for my whole family.