I have been using pd with jack (in linux) extensively for the past n years. There are issues once in a while and some pd versions work well while others not so well. However, in my experience, pd causes the most xruns (compared to other jackified apps) and also, occasionally, causes some weird i/o sync hick-up in the jack graph. Overall, it has not let me down in the jack area but it sure could use a little improvement.

On the upside, however, IIRC pd has never been zombified by jack or otherwise "unhooked" from the jack server.

Currently I am on feisty (actually, the ubuntustudio variety), 2.6.20-16-lowlatency #2 SMP PREEMPT, Pd version 0.40.2-extended-2007-05-21.

Still, for mission critical situations, the (deprecated) oss (in alsa emulation mode) is the way to go, unless the alsa support is in good enough shape (as suggested by IOhannes).

./MiS

On 6/10/07, IOhannes m zmoelnig zmoelnig@iem.at wrote:

James wrote:

...

i'd like to take an informal survey. is it true that you can do no serious work with puredata using the jack audio server for linux and mac os x?

i don't (using x86/x86_64 platforms running debian gnu/linux) but i used to (we had a rather big opera-project using pd-0.37 (i think), where the alsa-support in pd was so bad that we had to use jack; since alsa is now workable (again) i have no reason to use jack)

and 2 weeks ago i visited orm finnendahl and he successfully and ( believe) seriously uses pd+jack on ubuntu (was it feisty? at least something very recent)

gfmasd.r# IOhannes

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My experience: It seemed to work ok on my old laptop, which was a secondhand ibm thinkpad t30 . However upon the sad demise of that machine and acquisition of a brand new, dualcore, acer 5610 there's nothing but problems. Most of the problems go away when using the external Edirol UA-25 but there's still a kind of periodic 'click' about every 5-30 seconds, and once it a while it causes a timeout , causing some sort of buffer fragmentation in JACK that does not recover. Is it a PD problem or a JACK problem ?!?! or a Hardware problem... The click I could deal with, but hte unexpected buffer fragmentation thing is a big problem

-----Original Message----- From: pd-list-bounces@iem.at on behalf of chris kummerer Sent: Sun 6/10/2007 5:02 PM To: James Cc: pd-list@iem.at Subject: Re: [PD] pd and jack, informal survey

I read:

i'd like to take an informal survey. is it true that you can do no serious work with puredata using the jack audio server for linux and mac os x?

no (not true)

but what is "serious" work anyway ;)

I use jack and pd + supercollider + ardour + a couple of other apps routing between them and then back to ardour to record the output all the time and it works great for me (and that's debian stable on a fairly old powerbook)

just my 2 cents,

x

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On Sun, 10 Jun 2007 18:25:01 -0400 James everamzah@gmail.com wrote:

Thanks for the replies so far, I'm interested in anyone else's experiences with JACK and PD.

I run a mixdown setup on one disk, Debian Sarge, with Jack, Ardour, JackRack, the VU meter thing, and Pd. No audio input though. The buffer settings are all way high but I can bounce multiple tracks to and fro between Ardour and Pd with no errors.

A good test to isolate Jack from other factors is to try the Pure:Dyne live CD, has a jack setup that works out of the box without clicks on most machines I tried.

Just chiming in that PD is fairly useless for me on OS X without Jack. My patches tend towards complex granulation, and it gets pretty glitchy. Or at least they did the last time I checked maybe a year and a half ago. My last year has been 90% performing and 10% programming (as opposed to previous years where the equation might have been reversed). So when you've got a good thing goin' on, why go messing around with it?

BTW, I have gotten QJackctl to compile and run with X11 on OS X. It's not that difficult really, except that you can't use it to start Jack, only to do the routing. But for routing it's much easier. My current work uses PD, Jack and SooperLooper all tied together, and manually clicking all the connections before each gig is a real pain. What I would *really* like for christmas is a command line function like aconnect (Linux/ALSA command) so I could script my startup on OS X the same way I do already on Linux. It shaves several tedious minutes of click-click-click off my setup time.

But that said, when I want to do *serious* PD work, I do it on Linux anyway, where I get almost double the power from the same machine as with OS X.

best, d.

Kyle Klipowicz wrote:

I run OS X 10.4.9 on a G4 PowerBook. Pd without Jack tends to get a periodic glitch whenever I am doing things like FM synthesis or other sorts of DSP. If I am just playing back samples using readsf~, it's OK. Otherwise, JackPilot to the rescue!

On a side note, the routing within the OS X Jack client is a bit confusing at times. Wouldn't it be cool if the Jack routing matrix was written in Pd?

~Kyle

On 6/9/07, James everamzah@gmail.com wrote:

...

i'd like to take an informal survey. is it true that you can do no serious work with puredata using the jack audio server for linux and mac os x?

thoughts? experiences?

tia

-- james/everamzah _______________________________________________ PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list

http://ardour.org/requirements_osx has a native-build .dmg of QJackCtl that I've been using for a couple of years quite happily. It allows you to save your patch setups (and set them as default), as well as set up auto-connecting when certain things show up... I have it set to start on startup and I rarely have to touch it (I use it to hook up Cubase4 and Pd). It starts jackd as well.

I managed to compile it as well as a native OS X .app, but it looks like the Ardour guys have updated their binary to the latest version so that shouldn't be necessary : ).

I recommend it!

On 6/11/07, Derek Holzer derek@umatic.nl wrote:

On the Linux side, I only ever use Jack as well, often in combination with Ardour (which causes more Jack problems than PD ever did!)

Rock solid, but I'm also running everything sudo or root when performing.

YMMV. d.

Derek Holzer wrote:

...

But that said, when I want to do *serious* PD work, I do it on Linux anyway, where I get almost double the power from the same machine as with OS X.

-- derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista ---Oblique Strategy # 3: "A very small object -Its centre"

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