Tutorial: vMix GO Portable Live Production Solution

Instant Replay

Next, we’ll quickly touch on a couple of additional features, starting with instant replay. To use vMix’s instant replay functionality, start by choosing Video Delay in the Input Select window. The Video Delay dialog opens (Figure 10, below).

Figure 10. The Video Delay dialog. Click the image to see it at full size.

Next, choose the source, resolution, and codec, then choose the number of seconds to record. I chose the default 20. By default record is on, which means vMix is recording a rolling 20 seconds of video. When something happens that you want to display as an instant replay, click the red Record button (Figure 11, below) to stop recording, then cue Instant Replay in the preview window, and set the start point and the playback speed in the vertical slider shown just to the right of the Record button. Transition the instant replay into the production using the T-bar, and it plays. Transition back to other inputs when instant replay is done.

Figure 11. Recording the highlight clip for instant replay.

To start recording again for the next highlight, click Record. vMix is working on a full sports management instant replay solution slated for release in March 2015.

vMix Social

Through an application called vMix Social which is included with the vMix software, vMix makes it simple to automatically insert inputs feeds from Twitter, Facebook, and IRC Chat into your productions (Figure 12, below). These feeds are injected directly into titles, which you can overlay over other content (Figure 13, below Figure 12). This adds a nice sense of interactivity to your webcasts.

Figure 12. vMix Social.

Figure 13. Twitter feeds injected via vMix Social. Click the image to see it at full size.

Overlay Options

The four included overlay options are the vMix equivalent of downstream keyers for producers who have used traditional switchers. In the Overlay Settings dialog, shown in Figure 14 (below), you can configure the size, position, and transition effects for each overlay.

Figure 14. The vMix Overlay Settings dialog. Click the image to see it at full size.

To apply an overlay like the title shown in Figure 15 (below), just click the appropriate overlay button. Click again to remove the overlay, or click the button on another input to replace the overlay.

Figure 15. Adding a lower-third as an overlay. Click the image to see it at full size.