[icecast] Downsampling mp3 on-demand streams

Jack Moffitt jack at xiph.org
Fri Mar 1 02:43:10 UTC 2002

> We're streaming radio programs at both 128kbsp and 32kbps, but only
> archiving the 128kbps stream to save storage space. I'd like to give users
> a similar choice of bitrates when they request an archived stream (served
> through icecast's /file/ functionality). Is there a way to change the
> bitrate on the fly, or do I really need to save archive both bitrates?

Think about the cpu that would require :)  It would increase _per
client_ and after 2-5 clients your machine would be unable to do
anything useful.

You'll have to archive in the other bitrates.  Fortunately this doesn't
waste as much space as you think.  +30% maybe at one bitrate depending
on the bitrate.


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