3 May
2010
3 May
'10
1:01 p.m.
Hello,
I wrote a WIKI page on how to bridge ALSA apps that do not "talk jack" at all
(like skype) or poorly (like lmms) by using the ALSA virtual loopback sound card. There
are a few reasons why I chose to use this trick, which I explain along the WIKI page. Just
read it if you are bored and send back comments if you like :)
http://alsa.opensrc.org/index.php/Jack_and_Loopback_device_as_Alsa-to-Jack_…
Cheers!
J.
4 May
4 May
12:38 p.m.
New subject: Jack and Virtual Loopback device as permanent Alsa-to-Jack bridge
On Mon, 2010-05-03 at 06:01 -0700, James Warden wrote:
Hello,
I wrote a WIKI page on how to bridge ALSA apps that do not "talk jack" at all
(like skype) or poorly (like lmms) by using the ALSA virtual loopback sound card. There
are a few reasons why I chose to use this trick, which I explain along the WIKI page. Just
read it if you are bored and send back comments if you like :)
http://alsa.opensrc.org/index.php/Jack_and_Loopback_device_as_Alsa-to-Jack_…
Cheers!
J.
Sadly this is not infallible either. After a while I sometimes end up
with just static and need to restart either the ALSA user or alsa_in...
--
Peter
1:20 p.m.
New subject: Jack and Virtual Loopback device as permanent Alsa-to-Jack bridge
--- On Tue, 5/4/10, Peter Nelson <peter(a)fuzzle.org> wrote:
From: Peter Nelson <peter(a)fuzzle.org>
Subject: Re: [LAU] Jack and Virtual Loopback device as permanent Alsa-to-Jack bridge
To: linux-audio-user(a)lists.linuxaudio.org
Date: Tuesday, May 4, 2010, 8:38 AM
On Mon, 2010-05-03 at 06:01 -0700,
James Warden wrote:
Hi Peter, it does not sound too good :/ I have not experienced 'static' on
my system. What are your system specs ?
J.
Hello,
I wrote a WIKI page on how to bridge ALSA apps that do
not "talk jack"
at all (like skype) or poorly (like lmms) by
using the ALSA virtual loopback sound card. There are a few
reasons why I chose to use this trick, which I explain along
the WIKI page. Just read it if you are bored and send back
comments if you like :)
Sadly this is not infallible either. After a while I
sometimes end up
with just static and need to restart either the ALSA user
or alsa_in...
2:41 p.m.
New subject: Jack and Virtual Loopback device as permanent Alsa-to-Jack bridge
On Tue, 2010-05-04 at 06:19 -0700, James Warden wrote:
--- On Tue, 5/4/10, Peter Nelson <peter(a)fuzzle.org> wrote:
I'm using a Debian Lenny system, but with ALSA 1.0.21 drivers, on an AMD
Athlon 64 X2 5600+
Seems to be some kind of timing issues with snd-aloop. Rhythmbox, for
instance, will sometimes also get stuck and continue playing the same
sample buffer over and over, and also sometimes gets stuck at the end of
a track.
--
Peter
From: Peter Nelson <peter(a)fuzzle.org>
Subject: Re: [LAU] Jack and Virtual Loopback device as permanent Alsa-to-Jack bridge
To: linux-audio-user(a)lists.linuxaudio.org
Date: Tuesday, May 4, 2010, 8:38 AM
On Mon, 2010-05-03 at 06:01 -0700,
James Warden wrote:
Hi Peter, it does not sound too good :/ I have not experienced 'static' on
my system. What are your system specs ?
J. Hello,
I wrote a WIKI page on how to bridge ALSA apps that do
not "talk jack"
at all (like skype) or poorly (like lmms) by
using the ALSA virtual loopback sound card. There are a few
reasons why I chose to use this trick, which I explain along
the WIKI page. Just read it if you are bored and send back
comments if you like :)
Sadly this is not infallible either. After a while I
sometimes end up
with just static and need to restart either the ALSA user
or alsa_in...
5:59 p.m.
New subject: Jack and Virtual Loopback device as permanent Alsa-to-Jack bridge
> Sadly
this is not infallible either. After a
while I
> sometimes end up
> with just static and need to restart either the
ALSA user
or
alsa_in...
Hi Peter, it does not sound too good :/ I have not
J.
I'm using a Debian Lenny system, but with ALSA 1.0.21
drivers, on an AMD
Athlon 64 X2 5600+
Seems to be some kind of timing issues with snd-aloop.
Rhythmbox, for
instance, will sometimes also get stuck and continue
playing the same
sample buffer over and over, and also sometimes gets stuck
at the end of
a track.
--
Peter
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Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
5 May
5 May
7:26 a.m.
New subject: Jack and Virtual Loopback device as permanent Alsa-to-Jack bridge
--- On Tue, 5/4/10, Peter Nelson <peter(a)fuzzle.org> wrote:
From: Peter Nelson <peter(a)fuzzle.org>
Subject: Re: [LAU] Jack and Virtual Loopback device as permanent Alsa-to-Jack bridge
To: linux-audio-user(a)lists.linuxaudio.org
Date: Tuesday, May 4, 2010, 10:41 AM
On Tue, 2010-05-04 at 06:19 -0700,
James Warden wrote:
experienced
'static' on my system. What are your system
specs ?
Peter,
I let my laptop play music the whole evening with rhythmbox, fired mythtv at the same time
and checked some youtube video, all through the jack-loop setup. I have not heard a single
glitch. Don't know what is going on with your system.
I was running jack at p=1024, n=3, r=48k (21ms). My DAW PC usually runs at p=256, n=2,
r=96k (2.7ms)
My asoundrc uses the default dmix and dsnoop buffering, so you may want to fiddle a little
with explicit options w.r.t buffering. As I mentioned in the howto, there is some latency,
that's unavoidable but you can compensate for it if you ever record anything from the
loop device inside say ardour.
J.
--- On Tue, 5/4/10, Peter Nelson <peter(a)fuzzle.org>
wrote:
> From: Peter Nelson <peter(a)fuzzle.org>
> Subject: Re: [LAU] Jack and Virtual Loopback
device as permanent Alsa-to-Jack
bridge
> To: linux-audio-user(a)lists.linuxaudio.org
> Date: Tuesday, May 4, 2010, 8:38 AM
> On Mon, 2010-05-03 at 06:01 -0700,
> James Warden wrote:
> > Hello,
> >
> > I wrote a WIKI page on how to bridge ALSA
apps that do
> not "talk jack" at all (like
skype) or poorly
(like lmms) by
> using the ALSA virtual loopback sound card.
There
are a few
> reasons why I chose to use this trick, which
I
explain along
> the WIKI page. Just read it if you are bored
and
send back
> comments if you like :)
> >
> >
http://alsa.opensrc.org/index.php/Jack_and_Loopback_device_as_Alsa-to-Jack_…
> >
> > Cheers!
> > J.
>
> Sadly this is not infallible either. After a
while I
> sometimes end up
> with just static and need to restart either the
ALSA user
or
alsa_in...
Hi Peter, it does not sound too good :/ I have not
J.
I'm using a Debian Lenny system, but with ALSA 1.0.21
drivers, on an AMD
Athlon 64 X2 5600+
Seems to be some kind of timing issues with snd-aloop.
Rhythmbox, for
instance, will sometimes also get stuck and continue
playing the same
sample buffer over and over, and also sometimes gets stuck
at the end of
a track.
--
Peter
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5 comments
2 participants
participants (2)
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James Warden -
Peter Nelson