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Re: [PD] audio problem on OSX with a particular mixer

rene beekman
Thu, 18 Mar 2010 16:07:17 -0700

[osc~ 220] to an [adc~], nothing more than that
even just the osc~ help patch does the trick


On Mar 18, 2010, at 23:58, Derek Holzer wrote:

> What is your patch doing then? Any DC offset or similar which could freak the 
> mixer out? Did you try it with just the test tone, or a simple [osc~ 220]?
> 
> D.
> 
> On 3/18/10 10:54 PM, rene beekman wrote:
>> Derek,
>> 
>> Well, that's the thing; with any other piece of external hardware I'm having 
>> no problems what so ever, just with this one damn mixer....
>> Voodoo does sound like an option :D
>> 
>> Rene
>> 
>> 
>> 
>> On Mar 18, 2010, at 23:35, Derek Holzer wrote:
>> 
>>> Hi Rene,
>>> 
>>> I think you can safely factor the mixer out of the equation, unless you 
>>> believe in voodoo ;-)
>>> 
>>> Pd doesn't play well with Coreaudio or Portaudio at all, so using JACK is 
>>> the best workaround for that. Lots of archive discussion on this topic, but 
>>> no solutions...
>>> 
>>> Best,
>>> Derek
>>> 
>>> On 3/18/10 8:53 PM, rene beekman wrote:
>>>> i'm running into a strange problem with a particular mixer, a behringer 
>>>> dx626. I've got the headphones/lineout of my intel macbook (running os 
>>>> 10.6.2) connected to one of the line-ins on the mixer.
>>>> 
>>>> audio playback through the mixer works fine from itunes or from the finder.
>>>> 
>>>> when i switch to pd, however, audio keeps switching on and off at a rate 
>>>> of about 2 or 3 times a second.
>>>> 
>>>> i've tried fiddling with the Pd settings to solve this, but have not been 
>>>> able to find a solution so far.
>>>> 
>>>> i'm using portaudio, sampling rate 44100, delay 50ms, no callbacks, input 
>>>> and output devices are set to built-in mic&   output.
>>>> 
>>>> changing any of these settings does not make any difference.
>>>> 
>>>> tonight i installed jack and this did solve the problem.
>>>> while i'm glad i've found a solution, i hate not understanding why it 
>>>> works....
>>>> anyone any suggestions or pointers? :)
>>> 
>>> --
>>> ::: derek holzer ::: http://macumbista.net :::
>>> ---Oblique Strategy # 41:
>>> "Define an area as `safe' and use it as an anchor"
>> 
>> 
> 
> -- 
> ::: derek holzer ::: http://macumbista.net :::
> ---Oblique Strategy # 140:
> "Reverse"


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