USB camera recording issues
Screenflow 10 records mac's built-in camera properly.
However, when I plug in my SONY alpha 5100 through an usb capture card, it takes the 16:9 video and stretches it to 4:3. It's annoying. Screenflow 9 recorded that same camera on the same computer properly.
Interestingly, when setting up the recording and rendering the preview of the camera image, it's shown in 16:9 ratio. But in the recording monitor and the recording itself, it's stretched to 4:3.
Best,
Mat
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Mel Hopper Koppelman said:
I am using an iPhone to HDMI adapter:My hunch is that's your issue. I'm not sure that will work as you intend it with current macOS on M1 hardware. It's not something we'd test.
You should test phone lighting to USB into Mac.
I have the exact same HDMI to USB adaptor as you and can confirm that would work too. I'd avoid the dock (as it can impact resolution) and use a direct USB-A to USB-C adaptor.Mel Hopper Koppelman said:
My current set up worked perfectly until a couple of weeks ago and still works on Ecamm Live.It may work with our Wirecast as well which is the equivalent of ECAMM Live.
ScreenFlow is a different type of program. You'd have to test in Quicktime.-
CraigS Ok, I'll test it with and without the adapter.
"I'd avoid the dock (as it can impact resolution) and use a direct USB-A to USB-C adaptor" - how shall I plug in my microphone? I'm also using an iPad as a drawing device directly connected to my laptop.
Not using a dock potentially solves one problem but also seems to create a number of others . . .
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Mel Hopper Koppelman said:
Not using a dock potentially solves one problem but also seems to create a number of others . . .My own tests show that docks can impact video capture. That's not a ScreenFlow issue. It's related to docs and hubs going to Thunderbolt on M1 Macs.
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CraigS That's fine, but 2 weeks ago I was happy with the video quality and had a set up that allowed me to also capture my high quality microphone and iPad writing. So I need to balance these needs with optimizing video quality.
My current video quality issue is not caused by having a dock, since it's not a problem in ecamm. Thanks!
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Mel Hopper Koppelman said:
That's fine, but 2 weeks ago I was happy with the video quality and had a set up that allowed me to also capture my high quality microphone and iPad writing. So I need to balance these needs with optimizing video quality.Which brings me back to what changed?
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CraigS I updated Screenflow to the latest version
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Mel Hopper Koppelman
We're trying to verify some information.- Please include a screenshot of ScreenFlow Configure Recording Frame Size Options
- Please explain if "quality" is just the Aspect Ratio or something else.
- Please verify your previous version of ScreenFlow where this worked correctly (and as noted above we may have you check and confirm with that version)
Investigation FLOW-11497
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Mel Hopper Koppelman said:
I updated Screenflow to the latest versionCan you downgrade to the previous version you had and confirmed it worked? That could escalate a fix. If you need access to a specific version I can help provide that.
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Mel Hopper Koppelman said:
The metadata says the resolution is 1600x1200.Developers may want to know what your frame size options are in ScreenFlow Configure Recording for the source. I'd try this with and without the dock to see if the dock because that will show whether the dock is the factor.
Can you describe the "quality" issue or is it just the frame size at issue?
You state it works in ECAMM but the developers would need a technical description to know what you'd expect.
It's not clear if it's just the frame size options or some other "quality" issue involved. -
Mel Hopper Koppelman said:
What app is that screenshot of?Apple's Audio Midi Setup. In Applications / Utilities.
Definitely check USB input in the same app
Mel Hopper Koppelman said:
Is there a way to slow down the video so that it'll sync up to the audio in Screenflow?If the audio is drifting do a speed change. If the audio is offset then detach audio (if it's part of the clip) and shift it back in sync.
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CraigS Thanks, CraigS. The Camo support reckons that the issue was the video framerate setting of the recording. But when I choose the Camo video from my iPhone in Screenflow, I don't see an option to choose the framerate, just the resolutions.
Do you set the recording framerate within Camo or within Screenflow?
The audio is drifting - can I change the speed of the video or only the audio in post-production? Compared to my previous recordings, it seems like the video is fast rather than the audio being slow, if that makes sense.
Thank you!
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Mel Hopper Koppelman Frame rate in Camo. Frame Rate setting may be in the phone settings itself and not Camo interface.
Timeline Frame Rate in ScreenFlow set before recording.
Detach Audio in ScreenFlow to shift sync if offset or adjust speed if drifting. I would adjust the video since it's likely not locked to a frame rate. This is not uncommon with iPhones. If the Cam video is in alignment with other video then speed change the audio.
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Mel Hopper Koppelman BTW I've done short tests with Camo video and audio and ScreenFlow 10.0.5 in my system and it stays in sync but I'm not sure how long your recordings are. Drift will increase over time.
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CraigS Thank you so much for this info. Camo support said that it only does 30 fps.
I'll have a go with my set up this afternoon and see if I can salvage my previous recordings and get it to record audio and video at the same speed. Thank you!
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Mel Hopper Koppelman If you're getting sync drift, applying a slight speed change to the audio or video can fix the issue.
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Mel Hopper Koppelman
Developers are curious if your iPhone to HDMI capture device worked as you expected if recording in Quicktime X? Looking to see if it's an Apple code-related issue that we might be replicating with the capture/recording. -
CraigS Thank you for this! So following up on my Camo set up, I ensured that all of the settings were as you said and I have the same problem - the video is much faster than the audio. I wasn't able to salvage the videos I already recorded, too time consuming and poor result.
- Camo: 30 fps (automatic)- iPhone recording settings: 30 fps
- Audio: 48,000 Hz
- Screenflow timeline: 30 fps
Anything else I should try? I could switch back to FilmicPro and continue to troubleshoot the video aspect ratio problem. . .
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Mel Hopper Koppelman
This is with your FilmicPro workflow.
Developers are curious if your iPhone to HDMI capture device worked as you expected if recording in Quicktime X? Looking to see if it's an Apple code-related issue that we might be replicating with the capture/recording. -
CraigS Thanks. I can confirm
CraigS said:
Developers are curious if your iPhone to HDMI capture device worked as you expected if recording in Quicktime X?Yes, it works as expected. No ratio distortion in Quicktime (or in Ecamm). But the problem remains in Screenflow. Thanks!
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Mel Hopper Koppelman said:
Anything else I should try? I could switch back to FilmicPro and continue to troubleshoot the video aspect ratio problem. . .As per above, developers would like to know how Quicktime X behaves with this workflow.
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Mel Hopper Koppelman said:
- Camo: 30 fps (automatic)
- iPhone recording settings: 30 fps
- Audio: 48,000 Hz
- Screenflow timeline: 30 fpsIn my tests, I'm not seeing sync drift (recording for about 1 minute).
I'm using a newer iPhone 12 Pro but I'm not sure if that would make a difference. -
Mel Hopper Koppelman said:
Yes, it works as expected. No ratio distortion in Quicktime (Thanks for that important info.