[PD] audio breaking

[Oded Ben-Tal]

thanks for the pointers. The setup of rt kernel is one of the main reasons 
I'm using planetCCRMA version (where nando manages to take care of these 
issues letting normal users access rt priorities).
I am still baffled by the fact that I get synch errors from pd even when 
not doing any audio (no patch open. and these are not only the initial 
errors when launching pd). And also the fact that I can get 
good audio playback reliably from snd (soundeditor). Doesn't that suggest 
that the problem is not with jack/firewire but perhaps with pd?

Oded


>
> https://help.ubuntu.com/community/UbuntuStudioPreparation#line-127
>
> Roman
>
>
> On Thu, 2010-03-04 at 23:52 +0100, Derek Holzer wrote:
>> I used to have to run Pd + JACK as -rt under sudo or root on Linux to
>> get good performance. Maybe there's another way with permissions and
>> groups and such, it's been a while since I fooled with it.
>>
>> D.
>>
>> On 3/4/10 11:41 PM, Marco Donnarumma wrote:
>>> (I re-send this'cause before I left the wrong subject in the email)
>>>
>>> Hi Oded,
>>> sorry if it sounds obvious, but have you tried starting Pd with the flag -rt?
>>>
>>> the flag will set Pd to get an actual real-time priority.
>>>
>>>
>>> M
>>>
>>>
>>>
>>> Message: 3Date: Thu, 4 Mar 2010 11:13:24 -0800 (PST)
>>>
>>>     From: Oded Ben-Tal <oded at ccrma.Stanford.EDU
>>>     <mailto:oded at ccrma.Stanford.EDU>>
>>>     Subject: Re: [PD] audio breaking
>>>     To: Ricardo Lameiro <ricardolameiro at gmail.com
>>>     <mailto:ricardolameiro at gmail.com>>
>>>     Cc: pd-list at iem.at <mailto:pd-list at iem.at>
>>>     Message-ID:
>>>     <alpine.LFD.2.00.1003041112350.8616 at ccrma-gate.stanford.edu
>>>     <mailto:alpine.LFD.2.00.1003041112350.8616 at ccrma-gate.stanford.edu>>
>>>     Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
>>>
>>>     > I thinj he is using realtime kernel, as he is running jack with
>>>     the -R flag (reatime)
>>>     > otherwise jack wouldn even start.
>>>
>>>     Yes, I'm using the rt-kernel from planet CCRMA.
>>>
>>>
>>>
>>>
>>> --
>>> Marco Donnarumma aka TheSAD
>>> Independent New Media Arts Professional, Performer, Teacher - Edinburgh, UK
>>>
>>>
>>> PORTFOLIO: http://marcodonnarumma.com
>>> LAB: http://www.thesaddj.com | http://cntrl.sourceforge.net |
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>>>
>>>
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>>
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