jackd and PulseAudio

[Anthony Green]

I just did an in-place fc6-to-f8 upgrade and it went pretty smoothly.

One gotcha was I had to adjust the qjackd settings thusly:

1. Change "Server Path" on qjackctl's Setup page to "pasuspender jackd 
--".  This suspends PulseAudio so it isn't hogging the ALSA ports while 
I'm running jackd.

2. Change the "Interface" setting to "hw:0" from "default".  jackd 
wouldn't start up otherwise.  Any idea why?

AG

[Callum Lerwick]

On Mon, 2007-11-05 at 17:15 -0800, Anthony Green wrote:
> Change the "Interface" setting to "hw:0" from "default".  jackd
>
> wouldn't start up otherwise.  Any idea why?

I would assume that "default" has been redirected through PA?

[Fernando Lopez-Lezcano]

On Mon, 2007-11-05 at 17:15 -0800, Anthony Green wrote:
> I just did an in-place fc6-to-f8 upgrade and it went pretty smoothly.

Cool! Do you have a "how I did it" page somewhere? Would be very
useful...
> One gotcha was I had to adjust the qjackd settings thusly:
> Change "Server Path" on qjackctl's Setup page to "pasuspender jackd
>
> --".  This suspends PulseAudio so it isn't hogging the ALSA ports while 
> I'm running jackd.

Ahh, good to know. The Planet CCRMA jack package for f8 should have that
in place by default. Works fine otherwise?
> Change the "Interface" setting to "hw:0" from "default".  jackd
>
> wouldn't start up otherwise.  Any idea why?

That should the default except I'm not sure I want to force that. By
default "default" used to go through the dmix plugin and you really
don't want any plugin in between jack and the soundcard. "hw:0" is the
right thing to do.

-- Fernando

[Anthony Green]

Fernando Lopez-Lezcano wrote:
> On Mon, 2007-11-05 at 17:15 -0800, Anthony Green wrote:
> > I just did an in-place fc6-to-f8 upgrade and it went pretty smoothly.
>
> Cool! Do you have a "how I did it" page somewhere? Would be very
> useful...

No.  I took some notes which I'll stick in a blog entry later today. 
This is what I wrote down...

1. Manually upgrade the fedora-release and fedora-release-notes
    packages like so:

rpm -hUv \
http://mirrors.cat.pdx.edu/fedora/linux/releases/test/7.92/Fedora/i386/os/Pa... 
\
http://mirrors.cat.pdx.edu/fedora/linux/releases/test/7.92/Fedora/i386/os/Pa...

2. Disable all third-party repositories in /etc/yum.repos.d.

3. Remove third-party packages for which there is no new repo.  The
    upgrade fail due to broken dependencies otherwise.

4. "yum update"

5. Now your system has updated versions of all of your previously
    installed packages.  In order to pick up new packages from the
    groups you care about, you'll want to do something like so:

yum groupinstall "GNOME Desktop Environment" "Development Tools" \
  "Server Configuration Tools" "Hardware Support" \
  "Sound and Video" "Graphical Internet" "Fonts" \
  "Games and Entertainment" "Printing Software" \
  "Administration Tools" "Office/Productivity" "System Tools"

6. Cross fingers & reboot.
> > One gotcha was I had to adjust the qjackd settings thusly:
> > Change "Server Path" on qjackctl's Setup page to "pasuspender jackd
> >
> > --".  This suspends PulseAudio so it isn't hogging the ALSA ports while 
> > I'm running jackd.
>
> Ahh, good to know. The Planet CCRMA jack package for f8 should have that
> in place by default.

I'm going to file a bug against the Fedora qjackctl today.
> Works fine otherwise?

It seems to, yes.  F8 is pretty nice!
> > Change the "Interface" setting to "hw:0" from "default".  jackd
> >
> > wouldn't start up otherwise.  Any idea why?
>
> That should the default except I'm not sure I want to force that. By
> default "default" used to go through the dmix plugin and you really
> don't want any plugin in between jack and the soundcard. "hw:0" is the
> right thing to do.

Ok, good to know.  This will be in my bug report as well.

AG

Upcoming (possible) presentation in Boston

[Christoph Doerbeck]

Hi all,

I'd like to do a high-level presentation on fedora-music for my local
LUG in Boston MA in March '08.  If it turns out ok, I'll repeat it for
Nashua, NH.  I might even be interested in trying to do something for
Red Hat's Summit in Boston in June (ish).

I use the platform mainly for Rosegarden and midi-sequencing, but
obviously the project scope is much broader than this.  My workstation
is also heavily used for non-linear video editing (cinelerra) so I blend
the 2 projects to create mini home movies.

Are there any existing materials (papers, presentations, etc...) which I
could tap to get my research jump started?  Especially on topics of:

+ competitive landscape
  + industry standards (for things like midi sound fonts)
  + integrating 3rd products (like $$$ soundfonts)

Thanks...

christoph

On Mon, 2007-11-05 at 17:15 -0800, Anthony Green wrote:
> I just did an in-place fc6-to-f8 upgrade and it went pretty smoothly.
>
> One gotcha was I had to adjust the qjackd settings thusly:
> Change "Server Path" on qjackctl's Setup page to "pasuspender jackd
>
> --".  This suspends PulseAudio so it isn't hogging the ALSA ports while 
> I'm running jackd.
> Change the "Interface" setting to "hw:0" from "default".  jackd
>
> wouldn't start up otherwise.  Any idea why?
>
> AG
>
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