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List Info
Thread: Calling all those who know JACK
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| Calling all those who know JACK |
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2006-03-28 11:57:33 |
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Hi,
Because we seem to be getting a few similar requests related to using LiveSupport and streaming, I've been thinking about ways the JACK project could be used to route the sound output out of LiveSupport's Gstreamer into the streaming server's input; theoretically, this wouldn't even need a sound card, which would be excellent for hosted servers.
Anyway, the question goes out to those of you on the dev list: does anybody have any experience with JACK? Anyone interested in pursuing this?
doug
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Media Development Loan Fund
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Douglas Arellanes
Head of Research and Development
Center for Advanced Media--Prague (CAMP)
Na vinicnich horach 24a/1834, 160 00 Prague 6
Czech Republic
Tel: + 420 2 3333 5356, Fax: +420 2 2431 5419
Mobile: +420 724 073 364
http://www.mdlf-camp.net
http://www.campware.org
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http://www.mdlf.org
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| Calling all those who know JACK |
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2006-03-28 14:31:42 |
On Tue, 28 Mar 2006 Douglas.Arellanes mdlf.org wrote:
> Anyway, the question goes out to those of you on the
dev list: does
> anybody have any experience with JACK? Anyone
interested in pursuing this?
My experience with Jack (and Ardour) that it is quite a
heavy process on a
system, and if it starts screaming about its xruns hell
breaks loose.
Isn't there a much simpeler way via Gstreamer?
(Ok I admit, with Gstreamer you should also record your
line-in, if you
have a live performance and want to stream, but don't
forget 'normal'
radio stations have audioprocessors, so a dedicated stream
PC isn't that
bad)
Stefan
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| Calling all those who know JACK |
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2006-03-28 15:24:14 |
Stefan de Konink wrote:
> My experience with Jack (and Ardour) that it is quite a
heavy process on a
> system, and if it starts screaming about its xruns hell
breaks loose.
> Isn't there a much simpeler way via Gstreamer?
>
> (Ok I admit, with Gstreamer you should also record your
line-in, if you
> have a live performance and want to stream, but don't
forget 'normal'
> radio stations have audioprocessors, so a dedicated
stream PC isn't that
> bad)
and, with this solution you actually need a sound card - not
available
in some servers.
but the goal really is to be able to do streaming. this can
be achieved
with gstreamer inside LS as well... (hint, wink, Stefan?
Akos
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| Calling all those who know JACK |
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2006-03-28 17:11:24 |
Ákos Maróy wrote:
> Stefan de Konink wrote:
>> My experience with Jack (and Ardour) that it is
quite a heavy process on a
>> system, and if it starts screaming about its xruns
hell breaks loose.
>> Isn't there a much simpeler way via Gstreamer?
>>
>> (Ok I admit, with Gstreamer you should also record
your line-in, if you
>> have a live performance and want to stream, but
don't forget 'normal'
>> radio stations have audioprocessors, so a dedicated
stream PC isn't that
>> bad)
>
> and, with this solution you actually need a sound card
- not available
> in some servers.
Are you sure about that? Isn't there a way to make a
virtual soundcard
in ALSA?
> but the goal really is to be able to do streaming. this
can be achieved
> with gstreamer inside LS as well... (hint, wink,
Stefan?
Seriously what is wrong with ffmpeg ;) But yes, thats why I
used the
shout2send plugin for. But Akos, if you do it in LS, you
agree you need
to have a microphone for 'live' events? For prerecorded
stuff this
shouldn't be a problem (you could even try to do a lossless
audio render).
Stefan
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