System Video Input
System Video Input lets OmniScope use OS-level capture devices such as webcams and USB capture hardware.
Supported Devices
Webcams
Built-in cameras, Logitech, Razer
USB Capture Cards
AJA U-TAP, Elgato Cam Link, Magewell
HDMI/SDI to USB
Blackmagic Web Presenter, Atomos Connect
Virtual Cameras
OBS Virtual Camera, NDI Virtual Input
Platform Notes
macOS
OmniScope uses AVFoundation-based system capture.
BETA (1.11.25) - USB capture on macOS was rewritten with better hot-plug handling and synchronized audio support.
Windows
BETA (1.11.25) - Windows system capture supports a DirectShow path for broader USB device compatibility and improved MJPEG capture behavior.
USB Driver Choice (Windows)
In Options > Preferences > Sources, choose the USB capture driver:
Media Foundation
DirectShow
Changing this setting requires an app restart.
Audio Support
1.11.25+ - USB input audio is supported on both macOS and Windows.
For devices with embedded or associated audio:
Select the video device.
Confirm the audio source in input settings.
Use the Audio Meter scope to verify levels.
System Audio Capture
You can also capture system audio from your computer output:
Open input settings.
Enable System Audio.
Choose the audio output/source to monitor.
Troubleshooting
Device not listed
Reconnect the device and verify OS detection.
Close other apps that may hold exclusive access.
Check camera permissions on macOS.
Check Device Manager on Windows.
No audio
Confirm the device actually carries audio.
Verify selected audio source in input settings.
Check OS-level microphone/audio permissions.
Unstable performance
Lower resolution or frame rate.
Prefer USB 3.0+ ports.
Use vendor-native integrations (DeckLink/AJA) for high-end workflows.
Related
Last updated