Quick answer
Open Media, choose Open Capture Device, select the capture mode for your operating system, and choose video and audio inputs separately. Preview first; use Convert or the Record control only after the live signal is stable.
Understand the task
Input
A driver-recognized capture card, a known-good source, and supported video and audio modes.
VLC action
VLC requests the selected live devices for preview or sends their streams through a conversion profile.
Expected result
A short verified recording proves the complete path before a long capture session begins.
Tip: Select audio explicitly; a correct picture can hide the fact that VLC opened the wrong microphone.
Steps to use a Capture Card with VLC
Install the capture card's trusted driver and confirm the source appears in the operating system before opening VLC.
Connect a known-good source and choose a conservative resolution and frame rate that the card explicitly supports.
Open Media, then Open Capture Device. Select DirectShow on Windows, the available input device on macOS, or Video4Linux on Linux.
Choose the video device and audio device separately. A visible picture does not prove that VLC selected the capture card's audio input.
Start with Play to preview the signal. If the screen is blank, test another supported input format before adding recording settings.
For a saved file, use the Play-button menu to choose Convert, select a compatible profile, and write to a new destination path.
Stop after a short test, then verify picture, sound, duration and sync in the saved file before recording a long session.
Diagnose the capture path one signal at a time
| Symptom | First check | Do not assume |
|---|---|---|
| No video | Capture mode, device and supported input format | The cable proves the driver is working |
| No audio | Selected audio device and source output | Video and audio use the same device entry |
| Large delay | Card latency, buffer and output path | A player setting can remove hardware delay |
| Preview works, file fails | Conversion profile and destination | Preview validates the recording output |
Limits and recovery
- Capture delay comes from the card, driver, buffering, decoding and display path. VLC cannot make every card suitable for live gameplay monitoring.
- HDCP-protected sources may not produce a usable signal. Do not bypass access controls.
- A preview and a recording use different output paths, so always verify the saved test file separately.
Related decisions
If the live picture looks wrong, separate the card's signal from VLC image filters.
Before saving a long session, review VLC recording and editing limits.
When preview works but the saved file does not, use the container and codec diagnostic before changing capture hardware.
Sources and corrections
Official VLC acquisition-card documentation >Official VLC video recording documentation >Menus can differ by VLC version and operating system. If a verified current build behaves differently, report the exact version and platform.