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DO NOT USE THE AUTOMATED REPLAY SYSTEM FOR RECORDING IN MISSION CRITICAL OR HIGH PRODUCTION VALUE SITUATIONS. If your career hinges on the production of a successful, highly-polished video, you should hire a professional. This service is a no-cost, no frills service for everyday use.

The REPLAY Video System

Replay provides scheduled recording and live streaming of events in the Kiva, Star, and Hewlett conference rooms. Replay is designed as a no-cost (to you), self-service alternative to the more costly and/or laborious options, like hiring a videographer or having a student or staff record the event.

Please note that REPLAY is not intended for use in highly-polished video productions; it cannot, and does not, attempt to take the place of a skilled videographer and/or a studio environment

Kiva and Star

The recording / live stream consists of a split-screen of two video sources: The output of the presenters laptop (the same image that is on the projector) and a high-definition camera zoomed in and focused at the podium. The camera feed is presented as a small screen next to the large screen of the laptop presentation. (see future features at the bottom)

Audio is supplied via the podium microphone. The microphone is activated by a single tap of the button. In order to be clearly broadcasted and recorded, please stand behind the podium when speaking. The microphone also provides amplification for the room.

Note: You must have your machine connected to HDMI in order to have slides displayed on the stream/recording. VGA does not provide a feed for recording / streaming.

Above: A view of a video recorded using the REPLAY system in Kiva


The recording / live stream consists of a single frame of the podium and the large screen display on the wall.

Audio is supplied via the podium microphone. The microphone is activated by a single tap of the button. In order to be clearly broadcasted and recorded, please stand behind the podium when speaking. The microphone also provides amplification for the room.

How it works

Replay will allow CSAIL users who create an event via the CSAIL Event Calendar or Room Booking system to also choose to record and/or live stream the event.


Your scheduled recording will automatically be started and stopped at the times you specify on the event creation page. There are times the room will be booked longer then you intend to record the event. This often happens when you book additional time for setup and break down. You can edit the start and stop times at after the event is created.

Once the initial recording is finished, it is transcoded into several formats for compatibility with a variety of web browsers and players, and is made available via the replay web site: . Authorized users can also use the administrative features of this site to add tags and comments to videos, and the owners of the videos (i.e., the person who booked the event) can also upload and attach the speakerís slide presentation(s) to them.

Live Stream

If the live stream option is also selected, the live stream will be same start and stop times you specify on the event creation page. The live steam is available at the respective YouTube room unlisted channel:

Access Control and Video Release Form

By default, recorded videos are private, meaning they can only be viewed by the person who booked the event. This cannot be changed until the videoís owner supplies a signed video release form and attaches it to the video via the admin interface. Once that happens, the access control can be changed to CSAIL only or World. A copy of the release form can be obtained at .


What's the difference between REPLAY and the CSAIL Video Archive?

The CSAIL Video Archive predates REPLAY by many years. It is a central location for videos about CSAIL things, and these videos can come from many different sources; for example, they might be from individual research groups, from students, or recorded by our staff videographer.

REPLAY is only for videos that are recorded in Kiva and Star. The only videos we host on the REPLAY website are the ones that are recorded by this system.

What's a video permission form and why do I need one?

If you are going to schedule a recording of a talk, you need to get the speaker's permission to do so. Although in the past some people have lived dangerously by not doing so, anything that is recorded by REPLAY must have a signed release. This is a best practice, and our release form is modeled after the MIT release form.

Can I have my REPLAY video edited? Like have it trimmed, cut up into smaller videos, etc.?

REPLAY is meant to be a no-frills, self-service system, and as such, does not have any built-in editing capability. We also do not have staff who can routinely manage the videos recorded this way.

If you have particular videographic needs that do not fit this model of use, we suggest either hiring a company to record and edit/produce the event, or arranging for our in-house videographer to do so.

With that being said, there is no reason you cannot download your raw video from its page on REPLAY (there are download links provided), import it into your video editing software, do your own trimming, and then upload the video back to the REPLAY site. If you think you might need to do this sort of thing a lot, please let us know and we will arrange a tutorial session for you.

Does every event that happens in Star/Kiva automatically get recorded?

No. By default, nothing is ever recorded; you must choose to record an event when you book the room in the CSAIL Calendar.

Getting Help

  • If you are having trouble getting REPLAY to work or have other questions, send email to
  • If you have general questions, observations, or suggestions, send them to (be sure to sign up for the list first!)

-- JasonDorfman - 23 Aug 2017
Topic revision: 08 Jun 2018, JasonDorfman

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