[Discuss] Syncing audio/video from two sources?

[joe at polcari.com (Joe Polcari)]

Stand in front of the camera and clap your hands?

On 10/20/17, 3:17 PM, "Discuss on behalf of John Abreau"
<discuss-bounces+joe=polcari.com at blu.org on behalf of abreauj at gmail.com>
wrote:

>I've got an HDMI pass-through widget that records the audio and video to a
>file, and I'd like to use it when I record the BLU meetings in order to
>capture the presenter's display and add it to the video from the webcam.
>
>The traditional method of syncing two sources would be to use a physical
>clapstick to create a short, loud snapping sound that can easily be synced
>with one specific frame of the video. But the pass-through widget is
>recording audio and video from the laptop's HDMI port, not from a camera,
>so it cannot capture audio or video of the clapstick to sync with.
>
>An animated clapstick that runs in a web browser should do the trick, but
>several google searches have not turned up anything like that. A
>standalone
>app would also work, though that would mean finding instances for Fedora,
>Ubuntu, MacOS, Windows, and possibly other platforms, as presenters could
>potentially use a wide variety of OSes for their presentations. A web app,
>or perhaps a java app, would be platform agnostic.
>
>Can anyone point me to something like that, or suggest another way I could
>sync the HDMI recording to the webcam recording?
>
>
>
>-- 
>John Abreau / Executive Director, Boston Linux & Unix
>Email: abreauj at gmail.com / WWW http://www.abreau.net / PGP-Key-ID
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