Bandwidth Consumption


How much bandwidth is used by a ScreenScape Display?



The bandwidth consumption of a ScreenScape Display depends on the kind of content in the playlist of the Display.

    ● Displays with only images and text consume low bandwidth.
    ● Displays with infrequently changed videos consume low to medium bandwidth.
    ● Displays with video that are frequently changed consume medium bandwidth (consumption is relative to the size of each video as they are changed out. A 20MB video = a 20MB spike, etc).
    ● Displays that stream videos (generally via YouTube) consume high bandwidth.



For example: An “average” ScreenScape playlist could contain in the order of ~50MB total data. This data would be downloaded once when a new Display is first initialized. Data traffic would then drop to < 1 MB per hour, spiking when a new video or image is added by the Display operator.

Details

The ScreenScape product is web-based. It typically runs on a media player that is connected to the World Wide Web, using the ScreenScape Smart Player. It consumes internet bandwidth during its normal daily operation.

After an initial download, the product stores media assets locally. The first time the Display is played on the media player, there is an increase in bandwidth consumption while the Display downloads every media asset (i.e. images and videos) in the Display’s playlist. This new content is downloaded and stored in a local cache.

After initial download, there is a significant drop in bandwidth consumption. The remaining bandwidth consumption represents the application periodically checking in to the ScreenScape servers, asking for potential playlist updates, updating the news and weather, etc. When the Display operator adds new content to a playlist, there’s another bump in traffic while the player downloads the new asset(s).

The frequency and size of new items added to a playlist controls how much local traffic is used. Both these variables are controlled by the operator of the Display, not ScreenScape. Typically we see operators adding somewhere between 1-2 new assets per week (low frequency) or 2-4 assets per day (high frequency).

Assets vary in size, from an average of 2MB for images and 5-40MB for video. Current maximum sizes allowed by ScreenScape are 5Mb for images and 100Mb for video. Well balanced playlists vary, but generally have a handful of videos (2 to 5) and more images (5-20).

Exceptions

    YouTube consumes high bandwidth. Streamed video in general causes a significant increase in bandwidth consumption. Because the video is streamed directly from these sites, it is not locally cached. Where bandwidth consumption is a concern at a particular location, ScreenScape recommends that the Display operator avoid YouTube and use Hosted Video instead.