ISO recording in Wirecast saves a clean, separate file of a source or shot while you stream, even when it is not live. You set it up in the Replay+ISO menu, choose Capture Source ISO or Shot ISO, then click ISO-REC. ISO recording is a Wirecast Pro feature. See ISO Recording for an overview.
Capture Source ISO or Shot ISO: which should I use?
- Capture Source ISO records one device, such as a camera on a capture card, a webcam or a microphone. It can include that source’s own audio, but it can’t combine separate audio and video sources into one file.
- Shot ISO records any shot on the Main Shot Display. Use it to combine a camera with a separate mic, or to record sources Capture Source ISO doesn’t list: Rendezvous guests, Wirecast Go, NDI, web streams, IP cameras and Elgato sources. Shot ISO files use your canvas resolution and frame rate, and audio is stereo, 32-bit float, 48 kHz.
How to set up ISO recording in Wirecast
- Select Replay+ISO > Configure.
- Click Add ISO.
- Choose Capture Source ISO or Shot ISO, then select the source or shot. Check the video and audio tracks you want. For an audio-only file, record an audio source or a shot that contains only audio.
- Pick a format: QuickTime: ProRes Video + Uncompressed Audio (best for editing) or QuickTime: x264 Video + Uncompressed Audio (much smaller files; default 10 Mbps).
- Set the filename and folder. Wirecast numbers new configurations ISO 1, ISO 2 and so on.
- Choose Single File (up to 12 hours) or New File Every to split long recordings.
- Optional: check Replay to use the recording for instant replay.
How to start and stop ISO recording
Click ISO-REC at the top of the default layout to start all configured ISO recordings. Or open the Replay+ISO menu and choose Start All or a single ISO. When everything is running, the menu item changes to Stop All.
Troubleshooting ISO recording
- Watch for warning icons in the ISO dialog. Hover over one to see the problem, such as a missing folder, a duplicate file name, or not enough disk space.
- If you see “Av recording failed to start,” check the user log, then click Edit to fix the configuration. Errors that happen after recording starts appear only in the Notifications window.
- Record to an SSD or fast RAID. If the total data rate is more than your disk can write, Wirecast may drop frames.
- Animated graphics and media files in a Shot ISO record as a still image. Put them in a different shot on another layer.