On this page you can find information about how the videos in the metauni YouTube channel are created. One advantage of virtual lectures over in-person lectures is that they are (generally) more convenient to record at high quality, especially if speakers make use of cheaply available, highly quality microphones. As of this writing (September 2022) we have recorded over 200 hours of seminars and lectures.
The workflow for recording a seminar (not as speaker) are as follows:
- Prep. Make sure you have enough disk space to record (somewhere between 20-30Gb per hour, depending on your settings, to record both your local audio and system audio and screen), microphones and devices are plugged into power, etc.
- Start Recording. Make sure to record both the microphone on the local machine (for your voice), system audio (which is what will capture the voice of the speaker coming through Roblox voice chat or Discord) and the screen. It’s a good idea to test your settings before recording a live seminar. You may want to run a keepalive script that moves your character every
Xminutes, in order to avoid having to manually interact with Roblox during the recording (the game will kick you for inactivity after 20 minutes).
- Join Roblox and (a) Attach as Listener to the relevant Orb (b) use
Shift-Cto get into Orbcam without the Roblox UI.
- Editing: most of the time in preparing videos lies in the editing process, and most of this lies in editing out background audio of your own voice track (which is not audible to others during the event, if you’re muted). Generally it takes me somewhere from 3-6min per 1hr of video to process.
- Uploading. Depending on your Internet connection, uploading a 1hr seminar to YouTube may take an hour or more.
- Processing: adding titles and descriptions, choosing a thumbnail and playlists. While YouTube autograbs potential thumbnails (and does a surprisingly good job) you will probably want to upload higher quality screenshots. Tag the videos in the description with the recording date (which is generally going to be different to the upload date) to maintain sanity later.
The tools used to make our recordings as of September 2022:
- Camtasia for video and audio recording and editing. While OBS is free and capable, note that (at least on Mac OS X) there are some steps required to reliably record System Audio.
- Dropbox. Note that 20-30Gb per hour adds up to a lot of storage, if you have 4-5 seminars to record once a week.
- YouTube. You may prefer options like Vimeo but note that if you are planning to upload at the rate that metauni does, you will be paying a substantial amount per year to be on their business plans. YouTube has its downsides, but its advantages are also profound: it is free, and has enormous reach. I just upload through the web interface and use no additional tools beyond the built-in YouTube Studio.
For one hour seminars the final MP4 file is somewhere around 5-10Gb.
In the early days quite a few seminar recordings were lost (a crime!), principally due to
- Running out of disk space (solution: be rigorous about uploading old seminars to Dropbox or external storage well before new recording dates).
- Failing to capture system audio (solution: double check after system upgrades or Camtasia upgrades, as the system audio plugins may stop working).
Some other remarks:
YouTube is likely to be one of the principal ways that people discover your seminar. Therefore, you should make sure to put links to relevant webpages in the description of every one of your videos. Note that Google search loves to recommend YouTube videos so you might be surprised at the upside to putting a bit more effort into descriptions in your videos (Google also generates transcripts with ML and Google search seems to hook into those transcripts).
It’s better to process videos as soon as possible after recording, because you will want to fill in detailed descriptions while your memory of the seminar is fresh. Use good thumbnails. You probably want to be taking screenshots during the seminar itself in order to generate those thumbnails.
It’s a good idea to take a few screenshots during every seminar, to post to social media or into your community Discord.
Places for improvement
Here are what I think of as the current margins to improve on the quality of metauni videos:
- Microphones: getting more speakers to use better microphones.
- Background noise removal: better tools for removing background noise and artifacts (I have tried a few but they stink).
- Removing unnecessary Roblox UI: generally I’m recording on an account I’m also using to interact with the world, communicate in the chat with audience members, switching to Discord to take care of admin tasks, etc., and all of this makes it into the recording.
- Better intros and outros: “so let’s get started” -> “In today’s seminar”
- Obnoxious visual effects: when it’s done right, the “living” environment of metauni experiences adds to the recording, but when the lighting is bad or exaggerated (I’m looking at you SunRays) it can be quite bad.
- Speaker uncertainty about orbs: sometimes speakers will be obstructing the view of the board in orbcam but be unaware, or the orbcam may be looking at the wrong set of boards (it tries to follow you, but maybe you aren’t standing in the right spot, or forgot to move).