Re: [Jack-Devel] drop outs with jack and pure data

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Date	Thu, 02 Jan 2014 14:55:10 +0200
From	Alexandros Drymonitis <[hidden] at gmail dot com>
To	Ralf Mardorf <[hidden] at alice-dsl dot net>
Cc	[hidden] at lists dot jackaudio dot org
Follow-Up	Alexandros Drymonitis Re: [Jack-Devel] drop outs with jack and pure data

On Mon, Dec 30, 2013 at 10:09 PM, Ralf Mardorf
<[hidden]>wrote:

> Hi Alexandros,
>
> > $ sudo aptitude install libjack-jackd2-dev
>
> You for sure installed something else, since this are only headers you
> need, when compiling software, this package isn't needed to run jackd.
>
> > I'm on ubuntu 12.04 on a macbook 5,2
>
> I don't know the Macbook, but on "PC"s it's important to use a fixed
> frequency for the CPU frequency scaling. IOW if CPU frequency scaling is
> set to "ondemand", it likely will cause issues.
>
I don't really get this. How do I do this? Don't know if this helps, but
after I start jack from the terminal like this:
$ jackd -d firewire

I start Pure Data in another terminal window with '-jack' and '-rt' (for
realtime) and in the jack terminal the following comments appear:
JackEngine::XRun: client = pure_data_0 was not run: state = 2
JackAudioDriver::ProcessGraphAsyncMaster: Process error

Does this mean something bad? When I play sound with Pure Data, every now
and then the audio stops for a few ms or even a second and then comes back.
Also, if I move windows around or switch between applications the audio
stops until I stop all actions. I guess all this shouldn't be happening..
Any tips?

>
> Regards,
> Ralf
>
>
> 
> Jack-Devel mailing list
> [hidden]
> http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
>

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