KXStudio <http://kxstudio.sourceforge.net/> also sets Jack up as the
uber sound driver for the system, which I LOOOVE! I never have to think
about whether or not Jack needs to be started, etc., because it's always
running. KXStudio also integrates Pulseaudio as just another Jack
client. This makes it really easy to capture the sound out of anything
that happens to be running on my PC. And everything Just Works(tm).
-~Chris
On 10/31/2012 01:07 AM, Holger Marzen wrote:
> On Wed, 31 Oct 2012, John O'Hagan wrote:
>
>> On 29/10/12 09:33, D. Michael McIntyre wrote:
>>> On 10/28/2012 02:06 PM, Jim Cochrane wrote:
>>>> jackd is started up whenever I start
>>>> rosegarden, even though this box is unchecked. Is there another spot in
>>>> the GUI to disable jack that I'm not seeing?
>>> There is no box for that as such. Rosegarden isn't starting jackd so
>>> much as the JACK API is starting jackd. I misremember the technical
>>> details, but basically we made a minor change to use a different API
>>> call, and now the audio server starts itself when Rosegarden does if
>>> it's not already running. This is basically a good thing, since it
>>> starts Rosegarden with all of its features enabled by default.
>> [...]
>>
>>> I suppose we could consider making some config option that would prevent
>>> Rosegarden from even attempting to start JACK, but I'd really rather not
>>> bother unless there is a lot of demand. It's just one more confusing
>>> configuration option for people to misunderstand, one more thing for
>>> everybody to have to translate, and one more thing for users to forget
>> [...]
>>
>> I agree with the approach, but there is an unfortunate consequence in
>> this case, at least on my Debian XFCE box, RG 12.04: after using
>> Rosegarden, jackd remains running, and prevents all my normal (ALSA)
>> applications' audio from working, except the handful which are
>> automatically jack-aware. This means manually terminating jack, from a
>> task manager or whatever, after each RG session; users still have to
>> manage jack, with all the attendant potential for confusion.
> On my Xubuntu 11.10 I never had a problem. Rosegarden started and endet
> my jackd. My .jackdrc was "/usr/bin/jackd -dalsa -r44100 -p128 -n2 -Xseq
> -D -Chw:5,1 -Phw:0,1"
>
> But since JACK has so many advantages (e.g. recording flash-sound when
> running firefox to record streaming-only content in the web) I decided
> that all applications should be redirected to jack. This works with the
> following ~./asoundrc or /etc/asound.conf:
>
> pcm.!default {
> type plug
> slave.pcm "jack"
> }
>
> pcm.jack {
> type jack
> playback_ports {
> 0 system:playback_1
> 1 system:playback_2
> }
> capture_ports {
> 0 system:capture_1
> 1 system:capture_2
> }
> }
>
> My jackd is now started by qjackctl that's autonatically started by my
> session manager.
>
> I can now even record the sound that's produced by virtual machines
> (VirtualBox), eg. browser sounds of a Windows-VM.
>
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