Video lags/stutters/jumps when pan/tilt/zoom

[UUBill]

Brand newbie to OBS (but not video) here. Church AV team.
We are wanting to use OBS to stream to YouTube.
We have a Vaddio PTZ camera fed through a Magewell USB Capture HDMI Plus into a new (powerful) Dell tower.
Currently, we use this to feed a laptop for Zoom streaming.
When I plug that same USB cable into the USB 3.2 of the new Dell, and add it as a source, I notice a lag/stutter/jumping when I pan, or tilt, or zoom.

An example is here: https://www.youtube.com/watch?v=GMczUfmokAk

This problem doesn't show up on the Zoom laptop. It doesn't show up on a monitor hooked directly to the camera output. It shows up on OBS recordings, streams and just live in the interface.
I've tried various combinations of resolution and FPS. The only one that stops it is 720x480. I've checked, and the camera is outputting 1920x1080.
Is it possible that a non-USB 3.0 cable could be hampering the data from the Magewell?
Any other ideas?

Thanks,
Bill

 

[UUBill]

Still hoping someone can help with this problem…

 

[Lawrence_SoCal]

We have a Vaddio PTZ camera fed through a Magewell USB Capture HDMI Plus into a new (powerful) Dell tower.
Currently, we use this to feed a laptop for Zoom streaming.
When I plug that same USB cable into the USB 3.2 of the new Dell, and add it as a source, I notice a lag/stutter/jumping when I pan, or tilt, or zoom.

1.. I hate to ask... but are you SURE that is a USB 3.2 port? The Dell port label and/or associated docs aren't important. try to verify that is truly a USB 3.x port, and that it is working at that speed. From BIOS/Firmware, OS settings could all be impacting things

Is it possible that a non-USB 3.0 cable could be hampering the data from the Magewell?

of course a problem (pre USB3.x, busted, or interference along data path) USB cable could cause all kinds of grief...

2. And is video going out of camera into Dell tower which has OBS Studio, and you are using Presentation output on Dell/OBS Studio for downstream Zoom laptop? if yes, that seems very odd, as how could OBS Stream/Recording be a problem, but a post-OBS processed video Presentation output to another device be ok?
Or is video to zoom laptop being re-routed BEFORE OBS Studio touches it? *if* this later case, I'd look into the EXACT plugins and settings in OBS Studio (old and new), as bound to be some differences and some 'issue' involved.

3. What are you using to control PTZ motion? are you doing that via a 3rd party plugin, or native camera control s/w outside of OBS Studio, or ??
*if* the PTZ camera is working fine when NOT moving, that would seem to indicate video bandwidth is fine, and not the USB port (hopefully). Again, *if* the lag/stutter is ONLY when involving PTZ motion, then I'd wonder if
a. a device driver (or control s/w version) difference from laptop to new Dell tower?
b. camera needs a firmware update? maybe old computer Win10 and new is Win11, and camera behaving differently as a result of other OS differences?

Don't ignore pinned post (link in my .sig) in the forums about posting OBS Studio log from session with issue

 

[UUBill]

1.. I hate to ask... but are you SURE that is a USB 3.2 port? The Dell port label and/or associated docs aren't important. try to verify that is truly a USB 3.x port, and that it is working at that speed. From BIOS/Firmware, OS settings could all be impacting things


of course a problem (pre USB3.x, busted, or interference along data path) USB cable could cause all kinds of grief...

2. And is video going out of camera into Dell tower which has OBS Studio, and you are using Presentation output on Dell/OBS Studio for downstream Zoom laptop? if yes, that seems very odd, as how could OBS Stream/Recording be a problem, but a post-OBS processed video Presentation output to another device be ok?
Or is video to zoom laptop being re-routed BEFORE OBS Studio touches it? *if* this later case, I'd look into the EXACT plugins and settings in OBS Studio (old and new), as bound to be some differences and some 'issue' involved.

3. What are you using to control PTZ motion? are you doing that via a 3rd party plugin, or native camera control s/w outside of OBS Studio, or ??
*if* the PTZ camera is working fine when NOT moving, that would seem to indicate video bandwidth is fine, and not the USB port (hopefully). Again, *if* the lag/stutter is ONLY when involving PTZ motion, then I'd wonder if
a. a device driver (or control s/w version) difference from laptop to new Dell tower?
b. camera needs a firmware update? maybe old computer Win10 and new is Win11, and camera behaving differently as a result of other OS differences?

Don't ignore pinned post (link in my .sig) in the forums about posting OBS Studio log from session with issue

Update: a new USB cable seems to have done the trick!