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Internet speed Vs window size

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anthony Faulkner
Internet speed Vs window size
on Dec 12, 2009 at 6:17:10 am

Hi there,

I am looking into getting a live stream set up. doing a one camera shoot through a lap top running wireacst. What are my minimum up and down speeds for viewing the different window dimensions? Is there anywhere where I can see a comparative list? Before I submit my proposal I'd like to know what is possible.

ideally id like to use one of these. Am i dreaming?

1280x 720
or
1920x1090

Assuming I have the video streaming to certain locations with a garaunteed line speed, Is it possible to simultaneously send out another stream of a smaller size to a general home user audience?

Or would i be better to record the stream and delay the presentation till after the heavier stream has completed?

Thanks for any input

Anthony Faulkner


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Daniel Yuna
Re: Internet speed Vs window size
on Dec 16, 2009 at 10:58:12 pm

Hi Anthony,

Streaming at those resolutions - 720p HD (1280x720) or 1080p Full HD (1920x1080) you will generally need an upload connection of 2.5Mbps-4Mbps to produce an end result that looks good. Your viewers will need 1.5 times that speed to ensure smooth playback.

So - It is possible, but challenging.

You can definitely use Multi-Bitrate streaming to supply a low/high quality stream based on the end-user's connection speed. I believe the feature is available in WireCast.


Daniel Yuna
NetroMedia
Streaming Provider & Host
http://www.netromedia.com/


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Craig Seeman
Re: Internet speed Vs window size
on Dec 16, 2009 at 11:48:44 pm

720 might be passable at 1.5mbps but Daniel is correct.

Wirecast can send multiple streams but make sure you have the upstream bandwidth to do that.



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anthony Faulkner
Re: Internet speed Vs window size
on Dec 18, 2009 at 2:11:50 am

Thank you for your input.



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