[PD] audio gets "scratchy" -- setting process priority on windows XP

[Johannes Burström]

I've also had problems with sound getting scratchy, but this start 
command seems to do the trick. Oddly enough, for me it works perfectly, 
with midi ins and -libs and all. But I can't see why I got it working, I 
just put the "cmd /c start /high" first in my .bat file. strange.

Johannes

ps. "hello" to the list, since this is my first post. and "thank you" to 
the developers, since PD is a really great program.

oliver wrote:

> i aldo ran into this problem, and found out a weird thing:
>
> if any midi-stuff is defined in the start-up script (i.e. -midiindev 
> etc.), setting HIGH priority using the "start" command doesn't work! 
> really haven't got a clue why. so there's several possibilities:
>
> 1.) deactivate MIDI in your start-up script if you don't need it.
> 2.) if you do need MIDI, start a second PD and route your midi stuff 
> to your NON-MIDI PD using OSC or netsend/netreceive
> 3.) there's a nice little freeware command-line utility called 
> "process". you can download it here:
> http://www.beyondlogic.org/solutions/processutil/processutil.htm
>
> this allows to set priorities with the command line. it's just an .exe 
> file that you put where your machine finds it. then you also need the 
> "motex" library for the [system] object. give it a message called
> [process -p PD.EXE High(
>
> you can then automate this thing with loadbang (and maybe a slight 
> delay - like 1 second...)
>
>
> i know this is quirky, but at least it works and functions automatically.
>
> good luck
>
> oliver
>
>
> Josh Steiner wrote:
>
>> interesting, i've occastionally set the priority higher in the 
>> taskmanager which seems to help avoiding stutters when moving objects 
>> around and such, but when i try your command like alone, it works: pd 
>> is running at high priority, but if i stick "cmd /c start /High " in 
>> front of my big line in the .bat with all the -lib's and -path's and 
>> -audiodev's and such, it starts as normal priority... any ideas?
>>
>>>
>>> hi, if you're talking WinXP:
>>>
>>> i have an audio problem, that results in "scratchy sound" now and 
>>> then, as long as PD is not at least in HIGH priority mode.
>>>
>>> i think by default it is in NORMAL mode and by setting it 
>>> automatically to HIGH (by batch command "cmd /c start /High 
>>> D:\pd\bin\pd.exe") i removed the problem. it is important though 
>>> that "wish32.exe" (the GUI) stays in NORMAL priority
>>>
>>> just my 2c
>>>
>>> ciao
>>>
>>> oliver
>>>
>>
>>
>