[PD] audio gets "scratchy"

[David Merrill]

Sorry for the incomplete post - the details of my scratchy audio system are:

Linux (kernel 2.4.x)
Pd 0.37.1
Using the alsa drivers on a Thinkpad
As for the settings for alsa - which ones would be important, and more 
importantly : where would I find them?

thanks,
-David

Josh Steiner wrote:

> please always tells us about your setup.  (we should have a "bug 
> report submital" form on the website tyhat has these questions)
>
> what os?
> what version of pd?
> what sound driver?
> what settings on your sound driver?
>
> i get "scratchy" sound when my cpu pegs (i have a nasty bug in my 
> performance setup which causes cpu pegging sometimes, i havnt been 
> able to track it down yet and its driving me bonkers)
>
> David Merrill wrote:
>
>> Hi there - has anyone had the problem with PD where the audio gets 
>> "scratchy" after a while? I am using tabread4~ to read samples out of 
>> arrays, and sequencing this with OSC. From there, I run the audio 
>> through some effects (vcf~, a tremolo and ring-modulator that I 
>> built, a pitch-shifter, etc..) It seems like after a minute or so, 
>> the audio starts getting really grainy and broken up. Even when I 
>> re-route the signal *around* all of the effects, it remains 
>> deteriorated until I restart PD. At first I thought that maybe I was 
>> messing things up by throw~ ing too many signals at the same time 
>> onto a summing bus, and it was clipping, but I've since fixed that 
>> problem. Any ideas about what might be causing this, and how I could 
>> fix?
>> much appreciated,
>> David Merrill
>>
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>
>
>
>