Intermittent Video Loss with Cassette Adapter

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nmartin9703

New Member
Hi, I'm using OBS Studio an AV to HDMI Converter and a USB Video Capture Card to digitize my home movies. I started out with the VHS' I had, and didn't really have any issues. I've now switched to my compact video cassettes using a cassette adapter. What I'm experiencing is intermittent loss of video with each compact cassette I've tried, and when the video is lost, I do not lose audio at all. Tried the Adapter and VCR I'm using on a regular tv and there is no issue, the video runs perfectly. Any ideas what could be causing this video loss?
 
U

u666sa

New Member
On your computer you might have several USB ports. For example, two different USB3.0 and 1 USB2.0. Insert your capture card into separate and not shared with anything else USB3.0 port.

Play around into which USB port you insert your USB Capture Card.
 
N

nmartin9703

New Member
No dice, same issues with other USB ports. Could it be that some frames are just degraded, and it causes the capture card to lose signal, but with normal viewing on the TV, the picture might have degradation, but it still shows up on screen? Sorry I'm a noob at this.
 
N

nmartin9703

New Member
Oh also, if I fast forward or rewind, there is no loss of video, the frames that aren't showing when I hit play are there.
 
Suslik V

Suslik V

Active Member
Make capturing, and right after:

Please post a log with your issue! Here's how...

OBS Studio creates a log file each time you run it which contains very useful diagnostic information. Without a log file, it's much harder for any support volunteers to figure out problems and your post may be ignored. To upload a log file, go to the Help menu > Log Files > Upload Last Log...
obsproject.com obsproject.com
 
N

nmartin9703

New Member
Suslik V said:
Make capturing, and right after:

Please post a log with your issue! Here's how...

OBS Studio creates a log file each time you run it which contains very useful diagnostic information. Without a log file, it's much harder for any support volunteers to figure out problems and your post may be ignored. To upload a log file, go to the Help menu > Log Files > Upload Last Log...
obsproject.com obsproject.com
Click to expand...
Here's the log file:

12:48:19.422: ---------------------------------
12:48:19.422: [x264 encoder: 'advanced_video_recording'] preset: faster
12:48:19.422: [x264 encoder: 'advanced_video_recording'] tune: film
12:48:19.554: [x264 encoder: 'advanced_video_recording'] settings:
12:48:19.554: rate_control: CBR
12:48:19.554: bitrate: 3500
12:48:19.554: buffer size: 3500
12:48:19.554: crf: 23
12:48:19.554: fps_num: 30000
12:48:19.554: fps_den: 1001
12:48:19.554: width: 720
12:48:19.554: height: 540
12:48:19.554: keyint: 250
12:48:19.554:
12:48:19.629: ---------------------------------
12:48:19.662: [FFmpeg aac encoder: 'Track1'] bitrate: 192, channels: 2, channel_layout: stereo
12:48:19.662:
12:48:20.139: ==== Recording Start ===============================================
12:48:20.139: [ffmpeg muxer: 'adv_file_output'] Writing file 'C:/Users/nmart/Videos/2024-05-06 12-48-19.mp4'...
12:48:55.693: [ffmpeg muxer: 'adv_file_output'] Output of file 'C:/Users/nmart/Videos/2024-05-06 12-48-19.mp4' stopped
12:48:55.693: Output 'adv_file_output': stopping
12:48:55.693: Output 'adv_file_output': Total frames output: 1032
12:48:55.693: Output 'adv_file_output': Total drawn frames: 1066
12:48:55.694: ==== Recording Stop ================================================
12:48:55.694: Video stopped, number of skipped frames due to encoding lag: 2/1066 (0.2%)
12:48:55.709: warning: 2 frames left in the queue on closing
 
PaiSand

PaiSand

Active Member
That's not the log file. That is a copy of a fragment found on the log file.
Please provide the full log file attaching it in here or using the OBS built in upload feature for the log file and paste the URL here.
 
Suslik V

Suslik V

Active Member
Just in case, check in Windows if your capture device is allowed to be captured (some kind of web-cam "private" protection of the OS).
 
PaiSand

PaiSand

Active Member

Analyzer | OBS

OBS (Open Broadcaster Software) is free and open source software for video recording and live streaming. Stream to Twitch, YouTube and many other providers or record your own videos with high quality H264 / AAC encoding.
obsproject.com obsproject.com

Start removing the completelly unnecessary Norton. As long as you have a healthy behavior online you don't need any other security than the one provided by Microsoft itself.

Recording at CBR 3500 kbps result in a bad quality recording.
Do not use advanced output, go back to simple output.
You should use standard setting, including standard fps. Use 30 or 60 if your system allow you to.

The best thing you can do is run the Auto-configuration Wizard and apply the settings it gives. Do NOT change anything.
Restart OBS. Yes, do restart OBS.
Now test as is. One test of no less than 30 seconds doing everything you normally do.
If everything goes well, you're done. Happy recordings.
If not, please post the log file from this test in here.
 
N

nmartin9703

New Member
PaiSand said:

Analyzer | OBS

OBS (Open Broadcaster Software) is free and open source software for video recording and live streaming. Stream to Twitch, YouTube and many other providers or record your own videos with high quality H264 / AAC encoding.
obsproject.com obsproject.com

Start removing the completelly unnecessary Norton. As long as you have a healthy behavior online you don't need any other security than the one provided by Microsoft itself.

Recording at CBR 3500 kbps result in a bad quality recording.
Do not use advanced output, go back to simple output.
You should use standard setting, including standard fps. Use 30 or 60 if your system allow you to.

The best thing you can do is run the Auto-configuration Wizard and apply the settings it gives. Do NOT change anything.
Restart OBS. Yes, do restart OBS.
Now test as is. One test of no less than 30 seconds doing everything you normally do.
If everything goes well, you're done. Happy recordings.
If not, please post the log file from this test in here.
Click to expand...
I tried the Auto-Configuration Wizard, restarted OBS. Got similar results.

https://obsproject.com/logs/N7rvzGDmujBREv3T
 
Suslik V

Suslik V

Active Member
What do you see in the properties of the "Video Capture Device" source of OBS? Are there pictures or it just has black screen preview?
 
N

nmartin9703

New Member
Suslik V said:
What do you see in the properties of the "Video Capture Device" source of OBS? Are there pictures or it just has black screen preview?
Click to expand...
I see the blue screen of the VCR, or images from the VCR. Like I said, everything is working I'm seeing the video, but it keeps flashing from the video to blue screen, video to blue screen, meanwhile the audio is coming through fine, and if I'm trying the VCR with Cassette Adapter on my regular TV I get no loss in video. This set-up, video capture device and OBS worked fine when I was digitizing just the regular tapes on this VCR. So trying to figure out why I get the loss in video.
 
Suslik V

Suslik V

Active Member
Also, your AV to HDMI Converter may have failed as well (or incompatible with some sort of signals).
 
P

Panasonic VHSC dude

New Member
nmartin9703 said:
Just to update, it was either the converter or the video capture, didn't like whatever signal was coming from the cassette adapter. Bought a video capture that was straight component, and it's working no problem.
Click to expand...
Hello nmartin9703,
I'm also trying to transfer my vhsc home videos from an old palmcorder to my PC, It seems that I'm in the same situation as you were. I'm able to play the video casettes from my palmcorder to my TV using the RCA cables (AV out to yellow, white, red input cables). So I know that the camera (palmcorder) and the casettes are working fine. But when I try to play them in my PC (RCA cables + A/V to HDMI converter + HDMI cable + HDMI to USB Video Capture Card to PC) OBS studio displays a blue screen. The same issue occurs when I try to play it in my TV (RCA cables + A/V HDMI converter + HDMI cable to TV).

Which video capture card worked for you?
 
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