[Icecast] overlaying prerecorded content over a live stream...

[Michael Hale]

Hello everyone!

I've been looking into using icecast to help get some terrestrial  
radio stations into Internet broadcasting.  One of their requirements  
is that they have the ability to overlay internet-only content over  
the regional commercials that they run during their programming - ie,  
during breaks between their normal programming, they don't want ads  
from their advertisers going out over the internet, but rather, they  
would prefer to substitute special content.

I could see doing this by having a fallback stream loop continuous  
internet only content and switching over to the stream during  
commercial breaks by terminating the main stream but that would seem  
not to be the optimal solution due to a clash with how I planned to  
introduce redundancy into the system (by having two machines onsite,  
each encoding the live stream from the boards realtime and relaying  
to two geographically distinct icecast servers, each set up as  
fallbacks for the other).

Has anybody here had to deal with a similar problem and/or have  
suggestions for the best way in which to proceed?

Thank you very much for your help.
--
Michael Hale                <smiley at gift-culture.org>
gift culture:                http://www.gift-culture.org
initstring:                    http://www.initstring.org
artificial music machine:        http://www.artificialmusicmachine.com

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