Re: [PD] audio drops for few ms, or one sec, with jack on ubuntu (was: Mess with Pd installation on Linux)
On Thu, Jan 9, 2014 at 2:30 AM, Py Fave pyfave@gmail.com wrote:
sorrry saw ubuntu late
2014/1/9 Py Fave pyfave@gmail.com
i think it's from jack setup search for jack issues with your specific hardware. i mean what mac do you use , jack version is important too
Well, I've been posting on the jack mailing list too, and some people
there mention that Pd is known to have a poor Jack support... I also get clicks with Audacity, but someone mentioned that Audacity too is known to have a poor Jack support. Someone suggested that I use Pd with ALSA and use an alsa-jack-bridge to send the audio to my firewire sound card. I'll give that a shot and see what happens. BTW, I have Jack 1.9.8
http://www.jackosx.com/news.html
2014/1/7 Alexandros Drymonitis adrcki@gmail.com
Just an addition to this, it shouldn't be pd's problem as I tried jack with audacity and got drop outs there as well. I'd be grateful to any help..
On Thu, Jan 2, 2014 at 2:05 PM, Alexandros Drymonitis adrcki@gmail.comwrote:
Forgot to mention that whenever I move a window around, open a subpatch, swich between applications while the audio is running, the sound stops till I stop which ever action. Also I'm running $ jackd -d firewire -d hw:NVidia (forgot to write hw: in the first email)
On Thu, Jan 2, 2014 at 1:29 PM, Alexandros Drymonitis <adrcki@gmail.com
wrote:
Coming back to a previous thread I started, having compiled pd with jack, having done the realtime scheduling in jack, opening pd with '-jack' and '-rt' I still get some audio drop outs. The sound actually stops for a few ms, or even about a second, then comes back. From the previous thread I was told that probably jack is waiting for samples that pd doesn't provide at certain moments. I went through jack's manual, but it is a manual for programmers and I'm not one, so I didn't make much of it. The only thing I found in jack's FAQ is a question about audio with jack on a macbook (I'm on a macbook with ubuntu) that mentions a drivers problem that distorts the output http://jackaudio.org/macbook_distortion but my output is not distorted... I also tried to start up jack like this $ jackd -d firewire -d NVidia but it really didn't make any difference (why should it? it uses the same sound card with or without '-d NVidia'). Also used QjackCtl to change the block size, but also didn't work. Dunno if this message in jack's terminal says something about the situation: JackEngine::XRun: client = pure_data_0 was not run: state = 2 JackAudioDriver::ProcessGraphAsyncMaster: Process error
It appears whenever I open pd with '-jack' I'm on a macbook 5,2 with ubuntu 12.04 and pd-0.45-4 Can anyone help?
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On 09/01/14 10:59, Alexandros Drymonitis wrote:
there mention that Pd is known to have a poor Jack support... I also get clicks with Audacity, but someone mentioned that Audacity too is known to have a poor Jack support.
in my experience this is not true..
both pd and audacity (and supercollider and any other audio app that supports jack) work like a charm with jack here..
running latest pd, jackdmp-1.9.9.5 and 3.12.5-1-ARCH kernel..
my 0.02$.. y
On Thu, Jan 9, 2014 at 12:07 PM, yvan volochine yvan.pd@gmail.com wrote:
On 09/01/14 10:59, Alexandros Drymonitis wrote:
there mention that Pd is known to have a poor Jack support... I also get clicks with Audacity, but someone mentioned that Audacity too is known to have a poor Jack support.
in my experience this is not true..
both pd and audacity (and supercollider and any other audio app that supports jack) work like a charm with jack here..
Could it be the FFADO drivers with Pd? I still can't make it work and the answers I get from different lists are quite contradictory..
running latest pd, jackdmp-1.9.9.5 and 3.12.5-1-ARCH kernel..
my 0.02$.. y
-- http://yvanvolochine.com http://soundcloud.com/yvanvolochine http://soundcloud.com/elgusanorojo http://github.com/gusano http://vimeo.com/yv
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On 09/01/14 11:20, Alexandros Drymonitis wrote:
Could it be the FFADO drivers with Pd? I still can't make it work and the answers I get from different lists are quite contradictory..
if both pd and audacity have drop outs, I'd guess that the problem comes from your jack/ffado setup..
y
On 2014-01-09 10:59, Alexandros Drymonitis wrote:
Well, I've been posting on the jack mailing list too, and some people there mention that Pd is known to have a poor Jack support...
afaict, Pd's jack-support is still suboptimal when it comes to automatically starting jackd; it also has a weird channel numbering scheme (jack applications usually start counting their channels with 1) and the client naming scheme is imho bad as well ("pure_data_0" with no way to change that).
however, i cannot see any wrongs with jack support apart from that: once jack is running and you manage to connect Pd to whatever other ports, everything works very stable.
f gasrdm IOhannes
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Alexandros Drymonitis -
IOhannes m zmölnig -
yvan volochine