[PD] Glitches during audio test on Mac OS X (newbie)

[Derek Holzer]

I am using PD on OSX, and I use JackOSX for anything that requires 
reliability. So try that, or try setting the delay in the "Audio 
Settings" dialog to a larger number. This increases the latency, and 
should lessen the chance of dropouts. I think the problem is that PD 
doesn't use the native OSX Core Audio drivers, but rather a set of 
Portaudio drivers. I've had less than ideal luck using Portaudio on OSX 
for anything, so my inclination is to see the problem there.

best,
d.

Roman Haefeli wrote:
> hello joseph
> 
> i am not a mac user myself, but a student mate of mine had a similar
> problem with any version of pd (we tried about 4 different versions).
> However, we couldn't find any setting to avoid these glitches (these
> glitches have been also very regular, like: 'zlic ----- zlic-----zlic',
> like in your case). even setting the samplerate to 48000Hz didn't help,
> though that was mentioned in some mails before. also on her computer
> other applications ran fine, only pd was causing trouble. then we tried
> to run pd over jack and all troubles are gone. there is even a
> precompiled osx-binary of jack and an appropriate gui available, which
> makes the installing very easy:  http://www.jackosx.com/
> 
> i hope that this will be a help also for you....
> 
> roman
> 
> On Thu, 2007-01-18 at 06:04 +0000, Joseph Wilk wrote:
>> Greetings everyone,
>>
>>
>>
>> Thank you for your consideration in my problems getting going with Pd.  I am currently running Pd version 0.40-2 for Mac OS X 10.4 (PPC & Intel).  On this computer, I have Mac OS X 10.4.8 running on a 1.67 GHz PowerPC G4 with 1 GB of RAM.  I am using my built-in audio drivers.
>>
>>
>>
>> When I try to run the audio test or any other audio-based patch, I get terrible glitches.  Usually, they are spaced evenly in a 1-2-3-4 1-2-3-4 rhythm (only occasionally breaking that rhythm before settling back).  No matter what I set the delay to, I get these glitches in the sound.  No other audio program (like Ableton Live) is having any issues with the on-board sound card  I am not running any other programs at the time of Pd.  I can reproduce this issue faithfully through several releases back, even with special "extended" compiles.
>>
>>
>>
>> Does anyone have any suggestions for how I can continue troubleshooting or correct this problem?  Thank you kindly!
>>
>>
>>
>> Best wishes,
>>
>> Joseph Wilk
>>
>>
>>
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> 
> 
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-- 
derek holzer ::: http://www.umatic.nl
---Oblique Strategy # 82:
"Honor thy error as a hidden intention"