[Fedora-music-list] Jack and pulse on the Spin
David Sommerseth
davids at redhat.com
Thu May 31 13:25:30 UTC 2012
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On 31/05/12 08:43, Brendan Jones wrote:
> Just a note that the default F17 pulseaudio configuration supports
> jack bridging via dbus (/etc/pulse/default.pa).
>
> ### Automatically connect sink and source if JACK server is
> present .ifexists module-jackdbus-detect.so .nofail load-module
> module-jackdbus-detect .fail .endif
>
> This is different to again to
> module-jack-sink.so/module-jack-source.so which is what some of us
> have been using up until now.
>
> What that means is if jack-audio-connection-kit-dbus is on the spin
> by default, bridging is set up automatically.
>
> This is something that needs to be considered carefully and I'd be
> interested in how well jackdbus is working for people. I was
> having random errors in the past with jackdbus hogging CPU with
> pulse. I will perform some more monitoring here, but it would be
> great to hear what others have experienced.
>
Throwing in a large torch at fire here now ... do we really need
pulseaudio? I mean, this is a multi-media production spin, filled
with applications where Jack has become the standard - at least among
the audio based applications.
I don't know how that jack/pulse bridge really works ... but if pulse
really is needed, wouldn't it be better to write something which can
completely replace the pulse libraries, and rather re-use just the API
... so that pulse based applications appears as those in/out sinks in
Jack directly? This might be a rather long-term goal though.
This might be a better way to get better predictability in how the
audio production applications would behave, still having a fallback
for non-jack capable software.
Please educate me if I'm totally wrong here.
kind regards,
David Sommerseth
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