Just to see if I got that right, the rip is:<br><br>keyboard -> YOKE in -> YOKE OUT -> PD IN -> PD OUT -> YOKE IN -> YOKE OUT -> CUBASE IN<br><br>>The sluggish response is clearly due to Pd. Also, it's consistent whether Pd's patch window is in or >out of edit mode.<br>
How can you be sure? You are making two trips using that patching software (I confess I had no clue what MIDI-OX was previous to your thread), there's latency in all of the above hops (MIDI message passing through softwares) . <br>
<br>Do you tried to see how is Pd's latency in a "simple play sine wave with MIDI note" patch? that will give you the response time of keyboard -> PD.<br>Then test the oposite, sending PD to your soundcard MIDI and playing some device or other solution, allowing you to test the output (by generating a MIDI message within PD and route it out od PD).<br>
<br>Maybe those measures could be helpful for now,<br>Best regards and good luck,<br>Pedro Lopes<br>p.s. just for comparison I use MIDI in PD in WinXP without any noticeable latency, although only in Linux I do fancy patching in-out and have no noticeable latency (using everything in realtime).<br>
<br><div class="gmail_quote">On Sun, Jun 6, 2010 at 12:26 AM, Jim Aikin <span dir="ltr"><<a href="mailto:midiguru23@sbcglobal.net">midiguru23@sbcglobal.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I'm running 0.41.4 Extended on a 64-bit Windows 7 system. I've installed MIDI Yoke to route incoming MIDI from my keyboard through Pd and thence to Cubase 5.1.<br>
<br>
What I'm finding is that with the simplest possible notein-to-noteout patch, Pd's MIDI throughput latency is very consistently on the order of 100ms -- plainly unacceptable for real-time performance. Needless to say, Cubase is using ASIO, and has no problem producing low-latency MIDI response when I use a direct MIDI input. The sluggish response is clearly due to Pd. Also, it's consistent whether Pd's patch window is in or out of edit mode.<br>
<br>
To test whether MIDI Yoke might be the culprit, I opened MIDI-Ox and routed the physical MIDI input to a MIDI Yoke channel. The latency was maybe a tiny bit greater than via a direct routing into Cubase (maybe), but it was much, much less than with Pd.<br>
<br>
The section in the Pd manual on scheduling doesn't mention MIDI latency at all; it's strictly about audio DSP load. I can't find anything else in the manual that seems even faintly relevant. I did find (somewhere ... on the wiki?) a mention that the timing of metro would be improved if I ran with the command line pd -noaudio, so I opened a Command Prompt and tried that. It didn't change anything.<br>
<br>
It seems very odd to me that Pd can handle audio streams without glitching, yet it can't process three bytes of MIDI data in less than 100ms. Is this user error on my part? Can anyone suggest how I can reduce or eliminate the delay? Thanks for any tips!<br>
<br>
--Jim Aikin<br>
<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Pedro Lopes<br>contacto: <a href="mailto:jazz@radiozero.pt">jazz@radiozero.pt</a><br>website: <a href="http://web.ist.utl.pt/Pedro.Lopes">http://web.ist.utl.pt/Pedro.Lopes</a> <br>