[LAD] zita-ajbridge and aloop

Dominique Michel dominique.michel at vtxnet.ch
Fri Jul 12 21:18:56 UTC 2013


Le Thu, 11 Jul 2013 14:52:28 -1000,
Joel Roth <joelz at pobox.com> a écrit :

> Dominique Michel wrote:
> > Le Thu, 11 Jul 2013 15:59:09 +0200,
> > IOhannes m zmoelnig <zmoelnig at iem.at> a écrit :
> > 
> > > -----BEGIN PGP SIGNED MESSAGE-----
> > > Hash: SHA1
> > > 
> > > hi all,
> > > 
> > > (apologies if this is the wrong mailing list, but i'm currently
> > > only subscribed to LAD and not LAU. anyhow:)
> > > 
> > > i'm having serious troubles using zita-ajbridge with alsa loopback
> > > devices.
> > > 
> > > my basic requirement is, to allow *any* ALSA-only application to
> > > be "jackified".
> > > 
> > > i'm on debian, and my current tests are done on i386 resp.
> > > x86_64, but my target platform is armel (wandboard solo, powered
> > > by a single-core ARM cortex-A9)
> > > 
> > > the basic problem i'm facing is, that i don't get much output.
> > > occasionally i do get output (e.g. with mplayer)
> > > 
> > > so here's what i did:
> > > 
> > > # modprobe snd-aloop (with all the default parameters)
> > > 
> > > which gives me:
> > > 
> > > $ cat /proc/asound/cards
> > >  0 [Generic        ]: HDA-Intel - HD-Audio Generic
> > >                       HD-Audio Generic at 0xf0244000 irq 43
> > >  1 [SB             ]: HDA-Intel - HDA ATI SB
> > >                       HDA ATI SB at 0xf0240000 irq 16
> > >  2 [Loopback       ]: Loopback - Loopback
> > >                       Loopback 1
> > >
> > 
> > You can setup /etc/modules.d/alsa.conf, or whatever file used by
> > Debian to configure the ALSA driver, to define the Loopback as card
> > 0.
> > 
> > That way, all the ALSA program will access the loopback by default.
> > Of course, jackd must be running all the time for that to be useful.
> 
> Will pulseaudio accept the loopback device defined
> as card 0? It would be nice to have a bone to throw
> to pulseaudio. More and more of my distribution's
> packages seem to depend on it, including 
> that for a widely used video-conferencing client.

I don't know. pulseaudio is not installed into my system. I don't
want polkit, so I removed the whole of gnome :P)

But I think it should work, pulseaudio have both a jack sink that can
output directly to jack, and an alsa sink that can output to alsa.


> 
> Joel
> 
> 
> > Dominique
> > 
> > -- 
> > "We have the heroes we deserve."


-- 
"We have the heroes we deserve."


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