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    <div class="moz-cite-prefix">OK, all is working now. ;)<br>
      But i can't help you, i don't know who is the author of this
      abstraction, sorry.<br>
      ++<br>
      <br>
      Jack<br>
      <br>
      <br>
      <br>
      Le 16/04/2014 16:05, Nick Arner a &eacute;crit&nbsp;:<br>
    </div>
    <blockquote
cite="mid:CAD1H43Vs2d7nMT1VopPTOXrn_e92nuSUQKwYaZuwG6zs9C1Z+g@mail.gmail.com"
      type="cite">
      <div dir="ltr">Hi Jack,&nbsp;
        <div><br>
        </div>
        <div>Yes, that was my mistake; I've now attached both the patch
          and the abstraction.&nbsp;</div>
        <div><br>
        </div>
        <div>Thanks!<br>
          Nick</div>
      </div>
      <div class="gmail_extra"><br>
        <br>
        <div class="gmail_quote">
          On Wed, Apr 16, 2014 at 6:00 AM, <span dir="ltr">&lt;<a
              moz-do-not-send="true"
              href="mailto:pd-list-request@iem.at" target="_blank">pd-list-request@iem.at</a>&gt;</span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
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            <br>
            <br>
            Today's Topics:<br>
            <br>
            &nbsp; &nbsp;1. Re: Pd and RME HDSP alsa vs jack performance (Peter
            P.)<br>
            &nbsp; &nbsp;2. Re: PD List (GEM VideoSynth) (Jack)<br>
            <br>
            <br>
----------------------------------------------------------------------<br>
            <br>
            Message: 1<br>
            Date: Tue, 15 Apr 2014 18:40:31 -0400<br>
            From: "Peter P." &lt;<a moz-do-not-send="true"
              href="mailto:p8rpp@aol.com">p8rpp@aol.com</a>&gt;<br>
            Subject: Re: [PD] Pd and RME HDSP alsa vs jack performance<br>
            To: Federico Galland &lt;<a moz-do-not-send="true"
              href="mailto:federicogalland@gmail.com">federicogalland@gmail.com</a>&gt;<br>
            Cc: <a moz-do-not-send="true" href="mailto:pd-list@iem.at">pd-list@iem.at</a><br>
            Message-ID: &lt;<a moz-do-not-send="true"
              href="mailto:20140415224030.GB8322@aol.de">20140415224030.GB8322@aol.de</a>&gt;<br>
            Content-Type: text/plain; charset=us-ascii<br>
            <br>
            * Federico Galland &lt;<a moz-do-not-send="true"
              href="mailto:federicogalland@gmail.com">federicogalland@gmail.com</a>&gt;
            [2014-04-15 17:46]:<br>
            &gt; On Tue, 15 Apr 2014 16:07:03 -0400<br>
            &gt; "Peter P." &lt;<a moz-do-not-send="true"
              href="mailto:p8rpp@aol.com">p8rpp@aol.com</a>&gt; wrote:<br>
            &gt;<br>
            &gt; &gt; Hi list,<br>
            &gt; &gt;<br>
            &gt; &gt; following up onto some earlier postings I had made
            about the current<br>
            &gt; &gt; problems running Pd with any buffersize larger(!)
            than 5 using alsa,<br>
            &gt; &gt; the mmap code and an RME HDSP Multiface on Debian
            Linux, here are some<br>
            &gt; &gt; more results from tests I made recently:<br>
            &gt; &gt;<br>
            &gt; &gt; Alsa only works with audiobuf smaller 6, otherwise
            causing totally<br>
            &gt; &gt; garbled sound. With that short buffer settings it
            is unusable for<br>
            &gt; &gt; everything more CPU intense than sine test tones
            though.<br>
            &gt; &gt;<br>
            &gt; &gt; The only way to get Pd to run reliably under some
            load on my box using<br>
            &gt; &gt; the HDSP is to use jack with 256 frames at 2
            periods/buffer.<br>
            &gt; &gt;<br>
            &gt; &gt; Now what is weird is that the built in soundcard
            of my box is able to<br>
            &gt; &gt; do the same thing without problems with just 64
            frames at 3<br>
            &gt; &gt; periods/buffer in jack.<br>
            &gt; &gt;<br>
            &gt; &gt; Again with the HDSP, once I start adding Gem and
            let it render a<br>
            &gt; &gt; single geo, I do get many audio dropouts unless I
            increase jack's<br>
            &gt; &gt; buffers to a minimum 2048 frames at 2
            frames/buffer.<br>
            &gt; &gt;<br>
            &gt; &gt; I tested this using two different HDSP cards on
            two different Debian<br>
            &gt; &gt; boxes, using the -rt flag, realtime and
            non-realtime kernels,<br>
            &gt; &gt; optional callbacks and different sleegrain
            setting.<br>
            &gt; &gt;<br>
            &gt; &gt; Somehow it seems very sad that one of the best pro
            multichannel sound<br>
            &gt; &gt; cards under Linux seems to be unusable with Pd
            under Alsa reliably.<br>
            &gt; &gt;<br>
            &gt; &gt; I would like to contribute to any ways of
            improving this situation and<br>
            &gt; &gt; desperately hope that someone can comment on my
            findings.<br>
            &gt; &gt;<br>
            &gt; &gt; thank you!<br>
            &gt; &gt; best, Peter<br>
            &gt; &gt;<br>
            &gt; &gt; _______________________________________________<br>
            &gt; &gt; <a moz-do-not-send="true"
              href="mailto:Pd-list@iem.at">Pd-list@iem.at</a> mailing
            list<br>
            &gt; &gt; UNSUBSCRIBE and account-management -&gt; <a
              moz-do-not-send="true"
              href="http://lists.puredata.info/listinfo/pd-list"
              target="_blank">http://lists.puredata.info/listinfo/pd-list</a><br>
            &gt;<br>
            &gt; I guess you have ruled out everything under this wiki <a
              moz-do-not-send="true"
              href="http://wiki.linuxaudio.org/wiki/system_configuration"
              target="_blank">http://wiki.linuxaudio.org/wiki/system_configuration</a>
            ?<br>
            Thank you Federico,<br>
            I looked at the page and most suggesstions is stuff I
            already<br>
            considered.<br>
            &gt;<br>
            &gt; Is the HDSP a PCI interface? If so, pay particular
            attention to the "pci bus latency" part.<br>
            Well it is a ExpressCard interface in my case, and I wonder
            if that<br>
            qualifies as PCI device. The above pages mentions that PCIe
            devices<br>
            are not affected by the irq priorities as PCI does.<br>
            <br>
            best, Peter<br>
            <br>
            <br>
            <br>
            ------------------------------<br>
            <br>
            Message: 2<br>
            Date: Wed, 16 Apr 2014 10:55:40 +0200<br>
            From: Jack &lt;<a moz-do-not-send="true"
              href="mailto:jack@rybn.org">jack@rybn.org</a>&gt;<br>
            Subject: Re: [PD] PD List (GEM VideoSynth)<br>
            To: Nick Arner &lt;<a moz-do-not-send="true"
              href="mailto:nicholasarner@gmail.com">nicholasarner@gmail.com</a>&gt;,
            pd-list &lt;<a moz-do-not-send="true"
              href="mailto:pd-list@iem.at">pd-list@iem.at</a>&gt;<br>
            Message-ID: &lt;<a moz-do-not-send="true"
              href="mailto:534E458C.6060408@rybn.org">534E458C.6060408@rybn.org</a>&gt;<br>
            Content-Type: text/plain; charset="utf-8"<br>
            <br>
            Hello Nick,<br>
            <br>
            Don't forget to reply to all. That could be interresting for
            other<br>
            people on this list.<br>
            The document you sent is now a patch (attached).<br>
            But what can we do with it ? There is only a single object
            [video_synth]<br>
            on the canvas. It seems to be an abstraction, right ?<br>
            You have to send us the patch AND the abstraction.<br>
            And where are other objects like [gemwin] ? We are talking
            about Gem, no ?<br>
            ++<br>
            <br>
            Jack<br>
            <br>
            <br>
            <br>
            06 59 23 94 69 Andr?<br>
            <br>
            Le 16/04/2014 01:23, Nick Arner a ?crit :<br>
            &gt; Hi Jack,<br>
            &gt;<br>
            &gt; Thanks for the reply! I've attached the PD patch (it
            looks like the<br>
            &gt; attachment went through this time)<br>
            &gt;<br>
            &gt; Thanks,<br>
            &gt; Nick<br>
            &gt;<br>
            &gt; --<br>
            &gt; <a moz-do-not-send="true" href="http://nickarner.com"
              target="_blank">nickarner.com</a> &lt;<a
              moz-do-not-send="true" href="http://nickarner.com"
              target="_blank">http://nickarner.com</a>&gt;<br>
            &gt;<br>
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            <br>
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            <br>
            End of Pd-list Digest, Vol 109, Issue 52<br>
            ****************************************<br>
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        -- <br>
        <div dir="ltr"><font size="4"><font color="#000000"><a
                moz-do-not-send="true" href="http://nickarner.com"
                target="_blank">nickarner.com</a></font><br>
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