[PD] ... M-audio and pd asio problem

guillaume rabusseau gr_wip_pd at hotmail.com
Sun Sep 18 19:47:57 CEST 2005

thanks answering that fast Tim.
  I put the pd-0.38-4-devel-2 version on my computer and i managed reaching 
a very low latency.
  I'm now wondering about the stability of this pd version, do you think i 
can make live with this version? (i've already got some fatal errors...)
  And there is a thing that i don't understand : on my other computer i have 
a terratec MT88 with asio drivers that perfectly works with pd 0.37.3 (i 
have a latency of 5ms on this computer). Do you know why?
  And a last question : when do you think this work on the portaudio and 
asio driver that have been down in this "devel pd" will be integrated in 
common pure data releases.
  Again, thanks a lot for your help.

>From: Tim Blechmann <TimBlechmann at gmx.net>
>To: "guillaume rabusseau" <gr_wip_pd at hotmail.com>
>CC: PD-list at iem.at
>Subject: Re: [PD] ... M-audio and pd asio problem
>Date: Sun, 18 Sep 2005 18:43:00 +0000
> > I have a problem with my sound card, which is a m-audio firewire
> > audiophile. I can't manage reaching a low latency in pure data : When
> > I use shareware like fruity loops or Live Lite, the shareware
> > automatically detects the buffer size i have specified in the control
> > panel of the sound card and tells me what latency it gets, with a
> > 256k buffer size i have a 5 ms latency (which is good for me).But in
> > pure data, using the M-Audio FW Asio driver, as soon as I try putting
> > a latency less than 60 ms, the test tone becomes very dirty, with a
> > lot of discontinuities. I have tried a lot of combinations with
> > -audiobuf -blocksize... but i simply don't manage to do it.
> > If you have some ideas i would be very glad.
>this is a known problem with pure data's portaudio interface. pd is not
>able to run with low latencies on osx/windoze ... using jack / alsa the
>situation is better.
>the developer branch contains some changes in the scheduler that allows
>pd to run with low latencies with portaudio. i'd suggest you give this
>a try ... there are some binaries on sourceforge for windows ... no
>0.39 binaries, though ...
>cheers ... tim
>mailto:TimBlechmann at gmx.de    ICQ: 96771783
>latest mp3: kMW.mp3
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