[PD] web broadcast latency

[info at hansroels.be]

Hello,

I want to broadcast a live audio stream from a performance in a library: 
two musicians are playing on controllers + Pd patch. There is no 
acoustic sound, people visiting the library can just watch the silent 
performance. If these visitors want to listen, they can go to a website 
and listen through the media player on their smart phone or laptop. I 
want the latency to be less than 1 second (or better: less than 500ms) 
to ensure that the audience can experience a relation between the sound 
(from the webstream) and the visual performance.

Does anyone have experience with this kind of setup and is it possible 
to have such a low latency through a web broadcast? (or do I have to 
look for another solution, perhaps FM sender?) In older posts of this 
mailing list people were talking about latencies from 1 to 10 seconds.

Which external shall I use to send the sound in Pd to Icecast? I guess  
oggcast~  or mp3cast~ , or is there a better solution (= lower 
latencies) outside Pd?

best,

Hans Roels

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