Can I record a Zoom meeting?

Yes, you can record a Zoom meeting that you are hosting. Please check the Zoom user guide on how to do that. To be noted that on the Zoom@CERN service, participants of a recorded meeting will need to give their consent when a recording is started or leave the meeting.

You can choose to record your meeting either locally or on the cloud.

If you choose a local recording, your recorded file will be saved on your computer at the end of the meeting. Please note that the file may be as big as 1GB per hour of recording, and the finalization of the recording will necessitate some processing power for some time on the computer.

For cloud recordings you have 500MB space on the Zoom cloud, this consumption can be surpassed occasionally as it consumes from a storage pool assigned to CERN Zoom account as a whole, but in general try to keep you consumption below that limit. Cloud recording are deleted after 15 days. CERN Cloud recordings are stored in the EU Zoom cloud.

Only the host and the co-hosts of an event can start a cloud recording. A local recording can be started by a participant if the host of the meeting gives this right during the meeting. In that case also a local copy of the recorded meeting will be available at the participant computer.

It is really important to check the “Optimize for 3rd party video editor” option in the Zoom application settings. This will speed up the processing and publishing process.

You can also get more information about recording layouts from this page.

Where to then store the recorded files?

Recordings which should be published on the web can be posted on the web site. They can then be restricted to an e-group membership (see also A link can then be created from the relevant Indico agenda item to the video page.

Recordings which do not need to be published on the web can be stored on CERNbox.

Indico in general should not be used to store video files as it is not the best way to then serve them to users (watching will be more comfortable on as videos are streamed and will adapt to the available bandwidth of the users).

Recording files can be split by individual talks or simply trimmed of their useless content by using the ffmpeg open-source software. This command line allows to save into output.mp4 the part of input.mp4 starting at 00:03:00 and ending at 00:23:02:

ffmpeg -i input.mp4 -ss 00:03:00 -to 00:23:02 -async 1 output.mp4