On Jun 22, 2016, at 19:00 PM, pd-list-requ...@lists.iem.at wrote:
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Today's Topics:
1. Re: buffer and performance woes on OSX (Jesse Mejia)
2. Re: Dynamic Patching with 0.47 (Thomas Mayer)
3. A 6th order hilbert transformer? (Alexandre Torres Porres)
4. Re: Best way to install Pd on Raspberry Pi (Derek Kwan)
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Message: 1
Date: Tue, 21 Jun 2016 15:43:49 -0700
From: Jesse Mejia <jme...@anestheticaudio.com>
To: Alex <x37v.a...@gmail.com>
Cc: "pd-list@lists.iem.at" <Pd-list@lists.iem.at>
Subject: Re: [PD] buffer and performance woes on OSX
Message-ID: <03f0de45-aa73-4723-a51e-d079a16f4...@anestheticaudio.com>
Content-Type: text/plain; charset="utf-8"
Thanks! Moving the midi out to a separate patch - in a separate instance. (from
a copy/pasted pd application) solved my problems. I’m sending OSC between the
two patches and everything is smooth.
But I still wonder if there’s a way to do this from within one instance. Pd~
seems to only separate the dsp processes - but my problem was actually with
midi output. It would be great if there’s a way to prioritize and/or specificy
threading for abstractions.
-Jesse
On Jun 21, 2016, at 2:37 PM, Alex <x37v.a...@gmail.com> wrote:
If the audio logic is exclusively dependent on the midi input and the midi
output is also exclusively dependent on the midi input you could potentially
separate the midi output into its own process and run it independently of the
audio?
If they're instead both dependent on some processed version of the midi, but
not on each-other, you could do the processing in one of the processes then
still generate your audio/midi out independently.
-Alex
On Tue, Jun 21, 2016 at 1:51 PM, Jesse Mejia <jme...@anestheticaudio.com
<mailto:jme...@anestheticaudio.com>> wrote:
Hi list,
I’m having some performance problems - clicks/dropouts when I feed my patch too
much note concurrency by way of midi input into some [clone]d karplus strong
abstractions among other things - but only when I’m concurrently sending midi
out.
I’m finding that the audio settings menu hangs PD depending on what buffer size
I choose. I’m only able to choose 64 or 128.
Typically I would increase buffer size to compensate - but the only other
buffer setting that doesn’t hang pd is 128 and it actually gives me even more
dropouts. I’ve tried playing around with block~ but couldn’t really get that
helping either.
'defeat real-time scheduling' seems to help things somewhat. and running -rt
didn’t seem to do anything either way.
-nogui also didn’t help
I’m using a fairly unimpressive 2-core mac mini.. and I do have about 1/2 of my
DSP running in a pd~ instance
so maybe I just need to run this on a more powerful machine.
I’m sending a fair amount of midi data via ctlout to some micro controllers.
Basically the more note-ins my patch receives - the more ctlout data it sends.
Removing that part of the patch makes the dsp blocking clicks go away - but it
seems like the midi out shouldn’t be interfering with audio so much. Is there a
way to make PD prioritize the audio over the midi output? It would be great if
I could wrap the midi output stuff in a lower priority abstraction somehow… I
don’t think pd~ helps me there because there isn’t actually any DSP in the midi
output abstraction - just control data...
OSX 10.11.1 (el capitan)
Pd 0.47.1
Motu 24AO (though it was experiencing audio blocking and also lock ups on the
audio settings panel w/ the internal interface as well)
Any tips?
-Jesse
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Message: 2
Date: Wed, 22 Jun 2016 02:24:20 +0200
From: Thomas Mayer <tho...@residuum.org>
To: pd-list@lists.iem.at
Subject: Re: [PD] Dynamic Patching with 0.47
Message-ID: <23c531ab-a788-7391-da5b-55bdef472...@residuum.org>
Content-Type: text/plain; charset=utf-8
Hi,
On 20.06.2016 09:29, IOhannes m zmoelnig wrote:
On 2016-06-20 03:38, Miller Puckette wrote:
(I keep wanting to make some sort of "delete" message to canvases
but can't figure out what would be a usable design).
what's wrong with the index that can be found everywhere else? e.g.
iemguts adds a "delete" message (to the canvas) that takes a
single number:
https://git.iem.at/pd/iemguts/blob/master/src/canvasdelete.c
(actually it takes a list of numbers, but i've never used that).
so using "delete <index>" whould be: - consistent with the current
user-interface (e.g. "connect") - backward compatible with prior
implementations
Thanks, [delete( from iemguts' [canvasdelete] is just what I needed,
and makes it even clearer.
cu Thomas
--
"Anything can be a tool - poverty, war. War is useful because it
is effective in so many areas." (Bijaz to Hayt in: Frank Herbert -
Dune Messiah)
http://www.residuum.org/
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Message: 3
Date: Tue, 21 Jun 2016 23:37:59 -0300
From: Alexandre Torres Porres <por...@gmail.com>
To: "pd-list@lists.iem.at" <pd-list@lists.iem.at>
Subject: [PD] A 6th order hilbert transformer?
Message-ID:
<CAEAsFmg+PG=-jb5jtg-n7etzsr6mgcemapvskk0cs7b9wwa...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Howdy, I'm working on a frequency shifter object (via single sideband
modulation / complex modulation).
In Max they have a so called "6th order hilbert transformer with a minimum
of error". In Pd, the hilbert~ abstraction is 4th order. I'm copying the pd
abstraction for now, but I was hoping to use such a higher order filter and
also use- but I can't find a source for such a formula. Any help finding it?
thanks
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Message: 4
Date: Tue, 21 Jun 2016 23:50:05 -0700
From: Derek Kwan <derek.x.k...@gmail.com>
To: Jack <j...@rybn.org>
Cc: pd-list@lists.iem.at
Subject: Re: [PD] Best way to install Pd on Raspberry Pi
Message-ID: <20160622065005.GA5858@dxk-xps15>
Content-Type: text/plain; charset=us-ascii
hello,
you should move the pd binary to /usr/local/bin/
That directory should already be in your PATH and typically binaries any
user can run are put there (if you make install from source, it goes
there as well).
Once you've moved the pd binary to /usr/local/bin, you can type pd not
matter what directory you're in and it'll run.
Derek
Yep,
Raspberry Pi 3
Raspbian Jessie
++
Jack
=====================
Derek Kwan
www.derekxkwan.com
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