Icecast - Feb 2011 - merge/mix or replace two audio streams

Hi,

I'm trying to find a way to implement the following:
I have 1 media source (IceS or MPD) and 1 Icecast stream (say, LAN radio).
Once in a while I'd like this stream to be interrupted by short
announcements (PA system).

Input for these announcements can be from another source (IceS, MPD, Asterisk
call). Anyway, to make things simple: I'd have dir1 with ogg music files for
"normal" streaming and dir2 with ogg files for
"announcements".

If I have both sources defined, can I *automatically* move listeners to the
"announcements" and back to the main stream when all ogg files in dir2
have been played? If so, how can I trigger it?

Or, can I merge/mix "announcements" stream with main music stream?

Thanks for your ideas.

Vieri

You can set up dir2 as the main stream with dir1 as fallback and ake sure
you make dir2 override dir1

Just add something like this in /dir2:

<fallback-mount>/dir1.ogg</fallback-mount>
<fallback-override>1</fallback-override>

Hope this helps!
n.

On Sun, Feb 13, 2011 at 11:14 AM, Vieri <rentorbuy at yahoo.com> wrote:
> Hi,
>
> I'm trying to find a way to implement the following:
> I have 1 media source (IceS or MPD) and 1 Icecast stream (say, LAN radio).
> Once in a while I'd like this stream to be interrupted by short
> announcements (PA system).
>
> Input for these announcements can be from another source (IceS, MPD,
> Asterisk call). Anyway, to make things simple: I'd have dir1 with ogg
music
> files for "normal" streaming and dir2 with ogg files for
"announcements".
>
> If I have both sources defined, can I *automatically* move listeners to the
> "announcements" and back to the main stream when all ogg files in
dir2 have
> been played? If so, how can I trigger it?
>
> Or, can I merge/mix "announcements" stream with main music
stream?
>
> Thanks for your ideas.
>
> Vieri
>
>
>
>
> _______________________________________________
> Icecast mailing list
> Icecast at xiph.org
> http://lists.xiph.org/mailman/listinfo/icecast
>
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On Sun, 2011-02-13 at 06:14 -0800, Vieri wrote:
> Hi,
> 
> I'm trying to find a way to implement the following:
> I have 1 media source (IceS or MPD) and 1 Icecast stream (say, LAN
> radio).
> Once in a while I'd like this stream to be interrupted by short
> announcements (PA system). 
> 
> Input for these announcements can be from another source (IceS, MPD,
> Asterisk call). Anyway, to make things simple: I'd have dir1 with ogg
> music files for "normal" streaming and dir2 with ogg files for
> "announcements".
> 
> If I have both sources defined, can I *automatically* move listeners
> to the "announcements" and back to the main stream when all ogg
files
> in dir2 have been played? If so, how can I trigger it?
> 
> Or, can I merge/mix "announcements" stream with main music
stream?
You can also try savonet's liquidsoap audio framework for stream
automation [1].

As well as radiomate [2], which was a GSoC project last summer, to
utilize liquidsoap and enrich it so one can use it as remote automated
radiostation.

[1] http://savonet.sourceforge.net/index.html
[2] http://radiomate.org 

hth,
kloschi
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