Forums > Jitter

weird cpu spike

September 1, 2006 | 8:22 am

hi there,
i’m new to the list, hello everyone.

i have built a jitter patch that basically just chooses between a number of mjpeg files and plays them back with no processing or effects. the patch runs fine, with activity monitor giving a cpu use of about 25%.

if i then go into the cpu status page and turn the dac on, it spikes up to 100% and max goes super slow, beach ball style. it’s fine when i turn the dac back off.
this happens even when the patch is not running, just open. it happens when the patch is not in the folder with it’s movies and they’re not loaded. i tried changing the soundcard with no difference.

one bit of info i got was that when i built an app from it i got the errors:

error:jit.qt.movie : could not initialize SOC sound playback engine
error : send~ : no such object
error : jit.qt.movie : could not initialize SOC sound playback engine (send~ class)
error : sfplay~ : no such object

i got this suite of errors for each of the jit.qt.movie objects in the patch, however i am not using soc or spigot~ and there are no send~ or sfplay~ objects anywhere in the patch as i have not started working on the sound yet.

the problem is that i need the dac on as i will be building an msp patch to control the corresponding soundtrack.

does anyone have any idea why this might be?

thanks for anyone’s help

owen


September 1, 2006 | 3:27 pm

Hi Owen,
Are you on a Mac?
If so, please download the latest version of Jitter (1.6.1) and let us
know if that helps.

Andrew


September 1, 2006 | 3:39 pm

thanks andrew,
problem is gone.

cheers
owen


September 2, 2006 | 10:55 am

Please send the patch with a more comprehensive description of your
OS, Max version, etc. etc. etc. to support@cycling74.com so that we
can take a look at the problem.

jb

Am 01.09.2006 um 10:22 schrieb owen lloyd:

> does anyone have any idea why this might be?
>
> thanks for anyone’s help
>
> owen


September 2, 2006 | 11:01 am

hi jeremy,
i’ll send it over but as i replied to andrew the problem was fixed by the upgrade to jitter 1.6.1

cheers
owen


September 2, 2006 | 11:05 am

Ah, ok. I missed that. Thanks for the update. Don’t worry about
sending the patch, then!

jb

Am 02.09.2006 um 13:01 schrieb owen lloyd:

> i’ll send it over but as i replied to andrew the problem was fixed
> by the upgrade to jitter 1.6.1


Viewing 6 posts - 1 through 6 (of 6 total)