Re: [PD] Reading a specific image from [pix_buffer] and saving it using [pix_write]

2012-07-10 Thread IOhannes m zmoelnig
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Hash: SHA1

On 2012-07-10 05:53, Seiichiro MATSUMURA wrote:
 Hi,
 
 I try to do the similar thing, capturing from pix_video, saving a 
 specific frame of [pix_buffer] to jpg files. However, the color
 space and the resolution of saved jpg file is changed. Even saving
 tiff is the same result.

i'm pretty suzre, that the resolution of the image does not change,
even on OSX.
with chnaged color space, do you mean that the colors are stored in
the wrong order? or do you mean that your YUV pix ends up as an ARGB
image?
the latter is not a bug, the former is.

 I know one of the ways is converting Gemlist from YUV to RGBA
 using [pix_rgba] before inputing [pix_buffer_write], but it is
 told CPU-consumptive.

are you only told that it is CPU-consumptive, or do you experience any
actual problems?

if the conversion is indeed too CPU intensive and you only take
snapshots every now and then (not every frame), you could put the
[pix_rgba] in a branch that is only executed when needed.

e.g.

gemlist
|   [r spigot]
|   |
[spigot ]
|
[t a b]
| |
| [; spigiot 0(
|
[pix_rgba]
|[r writer]
||
[pix_buffer_write foo]
|
[save /tmp/foo.jpg 0(
|
[pix__buffer foo[

and click this to capture an image:
 [; spigot 1; writer 0(


 So, is there any solutions to save YUV data in pix_buffer directly
 to jpg file with keeping colorspace and resolution. I am using Mac
 OS 10.7.4 and pd-extended 0.42.5.

sorry, i cannot keep track of all the various distributions of Gem.

so, which version of Gem are you using?
which image-writing backends are installed (Gem should printout
something like Image saving support: QuickTime)

mfgds
IOhannes

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Re: [PD] Detuning reverb ?

2012-07-10 Thread Thomas Grill
Hi,
i wouldn't count on it being a live (guitar) effect.
It can be seen on http://www.youtube.com/watch?v=5eEVpY9rjxQ that it's
obviously played by use of some midi keyboard.
gr~~~

2012/7/8 Pierre Massat pimas...@gmail.com:
 Dear List,

 I've been trying to recreate the effect that can be heard on Pavement's The
 Hexx (http://www.youtube.com/watch?v=6N5tx68-d2I). It sounds like a
 constantly downward detuning reverb, I have no idea if this is an existing
 guitar effect or if it was created in studio by Nigel Godrich. My last
 attempt resulted in this
 (http://guitarextended.wordpress.com/2012/07/08/detuning-delay/), which
 doesn't really sound like the original at all...

 I think I need delay lines driven by a phasor with a squared output, so that
 the speed at which the length of the delays increases is not constant. I
 also think I need to envelop the delay lines somehow, and switch between
 them so that the maximum length is never reached. But right now I short of
 ideas. From what i've found on the web, this should be doable with a
 granular delay, but I never used any granular stuff.

 Any suggestion is welcome...

 Cheers!

 Pierre.

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Re: [PD] Detuning reverb ?

2012-07-10 Thread tim vets
2012/7/10 Thomas Grill g...@g.org

 Hi,
 i wouldn't count on it being a live (guitar) effect.
 It can be seen on http://www.youtube.com/watch?v=5eEVpY9rjxQ that it's
 obviously played by use of some midi keyboard.
 gr~~~


or maybe it's the guy in the background at 0:34 turning his tuning knobs ?
;)


 2012/7/8 Pierre Massat pimas...@gmail.com:
  Dear List,
 
  I've been trying to recreate the effect that can be heard on Pavement's
 The
  Hexx (http://www.youtube.com/watch?v=6N5tx68-d2I). It sounds like a
  constantly downward detuning reverb, I have no idea if this is an
 existing
  guitar effect or if it was created in studio by Nigel Godrich. My last
  attempt resulted in this
  (http://guitarextended.wordpress.com/2012/07/08/detuning-delay/), which
  doesn't really sound like the original at all...
 
  I think I need delay lines driven by a phasor with a squared output, so
 that
  the speed at which the length of the delays increases is not constant. I
  also think I need to envelop the delay lines somehow, and switch between
  them so that the maximum length is never reached. But right now I short
 of
  ideas. From what i've found on the web, this should be doable with a
  granular delay, but I never used any granular stuff.
 
  Any suggestion is welcome...
 
  Cheers!
 
  Pierre.
 
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Re: [PD] running Pd with a timer for an installation?

2012-07-10 Thread Jean-Marie Adrien
well Chris, on my side shutting down every day the mac and restarting from 
fresh every morning seems the only smart way to avoid unpredictable numerical 
papillon effects, kind of slow drifting towards crash, that in the end freeze 
the patch for reasons I ignore : I name it the unreachable bug of the 428th 
hour !
I run multiple instances of PD on multicore, GEM things and real time 
complicated audio.
... plus this cools the mac down !
Jm



Le 10 juil. 2012 à 00:53, chris clepper a écrit :

 I strongly recommend keeping the machine running 24/7 unless power to the 
 computer is being pulled daily.  I've had OSX boxes that ran for years 
 running GEM patches that pegged every CPU/GPU/ASIC in the box.  The majority 
 of issues came from restarting the computer after power was cut for some 
 reason.  
 
 Shutting down peripherals like screens and speakers is fine, but OSX and 
 Linux are designed for maximum uptime and run best that way.  I had tons of 
 problems with WinXP running for longer than a week or two.
 
 On Mon, Jul 9, 2012 at 4:44 AM, Richie Cyngler glitch...@gmail.com wrote:
 Thanks for all the great answers.
 
 So I found sleep/shut down scheduler in the Energy Saver menu of OSX System 
 Preferences. If need be I should be able to just use that.
 
 However if I want to kill Pd first is [realtime] the best object to use for a 
 scheduled event (in this case quitting Pd) like this?
 
 I think I will stick with just powering down at the end of the night I will 
 start it up manually, too many things could fail if I try and automate 
 running the patch, although Automator looks possibly useful too.
 
 Thanks again
 
 
 
 On Mon, Jul 9, 2012 at 7:41 PM, Jean-Marie Adrien j...@jeanmarie-adrien.net 
 wrote:
 - You kill PD from inside at a chosen time (pd quit;)
 - You shutdown your mac at that time, after having killed PD, and restart 
 your mac at a given time (OSX preferences)
 - You launch an application at restart of your mac (OSX Preferences / 
 accounts, this application is either compiled with applescript or with 
 automator and does what you want, in this case run your patch, I guess)
 this will take a little time to adjust, but works fine !
 JMA
 
 
 Le 9 juil. 2012 à 11:20, Ángel Faraldo a écrit :
 
  I haven't tried it myself, but I guess on OSX you should be able to do 
  these things with Automator.
 
  https://discussions.apple.com/thread/1772992?start=0tstart=0
 
 
  On Jul 9, 2012, at 11:03 AM, Patrice Colet wrote:
 
  The problem with both macosX and windows seven OS for an installation is 
  that you never know when they will decide to shutdown for maintenance, if 
  you're not expert.
 
  Colet Patrice
 
  - Mail original -
  De: Richie Cyngler glitch...@gmail.com
  À: PD-List pd-list@iem.at
  Envoyé: Lundi 9 Juillet 2012 08:43:03
  Objet: [PD] running Pd with a timer for an installation?
 
  Hi All,
 
  I'm planning on using Pd for an installation in Melbourne in a couple
  of
  weeks. It's running fine, Pduino working, sensors working. I'm just
  wondering is there is a object (or series) of objects I can use to
  power
  down the patch, or even kill Pd, at a designated time. The
  installation
  will run into the night for a week, I'll be there to start it up each
  night
  but not to shut it down. I'm probably running on OSX, windows may be
  an
  option. A sleep or shutdown timer for the OS would be very useful
  too,
  seems odd these are not standard.
 
  Any suggestions?
 
  Thanks a lot
 
  --
  Richie
 
  www.glitchpop.com
 
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  _
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Re: [PD] running Pd with a timer for an installation?

2012-07-10 Thread tim vets
2012/7/10 Jean-Marie Adrien j...@jeanmarie-adrien.net

 well Chris, on my side shutting down every day the mac and restarting from
 fresh every morning seems the only smart way to avoid unpredictable
 numerical papillon effects, kind of slow drifting towards crash, that in
 the end freeze the patch for reasons I ignore : I name it the unreachable
 bug of the 428th hour !
 I run multiple instances of PD on multicore, GEM things and real time
 complicated audio.
 ... plus this cools the mac down !
 Jm


You don't necessarily have to shut down the computer to close/restart your
patches...
I often do so anyway because it's the quickest and simplest way to be sure
that every morning the installation starts up exactly the same way,
but I do it mostly with old hardware that's easily replaceable if it
brakes, though I haven't broken any computers this way... yet...



 Le 10 juil. 2012 à 00:53, chris clepper a écrit :

 I strongly recommend keeping the machine running 24/7 unless power to the
 computer is being pulled daily.  I've had OSX boxes that ran for
 years running GEM patches that pegged every CPU/GPU/ASIC in the box.  The
 majority of issues came from restarting the computer after power was cut
 for some reason.

 Shutting down peripherals like screens and speakers is fine, but OSX and
 Linux are designed for maximum uptime and run best that way.  I had tons of
 problems with WinXP running for longer than a week or two.

 On Mon, Jul 9, 2012 at 4:44 AM, Richie Cyngler glitch...@gmail.comwrote:

 Thanks for all the great answers.

 So I found sleep/shut down scheduler in the Energy Saver menu of OSX
 System Preferences. If need be I should be able to just use that.

 However if I want to kill Pd first is [realtime] the best object to use
 for a scheduled event (in this case quitting Pd) like this?

 I think I will stick with just powering down at the end of the night I
 will start it up manually, too many things could fail if I try and automate
 running the patch, although Automator looks possibly useful too.

 Thanks again



 On Mon, Jul 9, 2012 at 7:41 PM, Jean-Marie Adrien 
 j...@jeanmarie-adrien.net wrote:

 - You kill PD from inside at a chosen time (pd quit;)
 - You shutdown your mac at that time, after having killed PD, and
 restart your mac at a given time (OSX preferences)
 - You launch an application at restart of your mac (OSX Preferences /
 accounts, this application is either compiled with applescript or with
 automator and does what you want, in this case run your patch, I guess)
 this will take a little time to adjust, but works fine !
 JMA


 Le 9 juil. 2012 à 11:20, Ángel Faraldo a écrit :

  I haven't tried it myself, but I guess on OSX you should be able to do
 these things with Automator.
 
  https://discussions.apple.com/thread/1772992?start=0tstart=0
 
 
  On Jul 9, 2012, at 11:03 AM, Patrice Colet wrote:
 
  The problem with both macosX and windows seven OS for an installation
 is that you never know when they will decide to shutdown for maintenance,
 if you're not expert.
 
  Colet Patrice
 
  - Mail original -
  De: Richie Cyngler glitch...@gmail.com
  À: PD-List pd-list@iem.at
  Envoyé: Lundi 9 Juillet 2012 08:43:03
  Objet: [PD] running Pd with a timer for an installation?
 
  Hi All,
 
  I'm planning on using Pd for an installation in Melbourne in a couple
  of
  weeks. It's running fine, Pduino working, sensors working. I'm just
  wondering is there is a object (or series) of objects I can use to
  power
  down the patch, or even kill Pd, at a designated time. The
  installation
  will run into the night for a week, I'll be there to start it up each
  night
  but not to shut it down. I'm probably running on OSX, windows may be
  an
  option. A sleep or shutdown timer for the OS would be very useful
  too,
  seems odd these are not standard.
 
  Any suggestions?
 
  Thanks a lot
 
  --
  Richie
 
  www.glitchpop.com
 
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  _
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Re: [PD] Reading a specific image from [pix_buffer] and saving it using [pix_write]

2012-07-10 Thread Charles Goyard
Seiichiro MATSUMURA wrote:
 Somehow colors are changed, the width become half and a picture itself
 is doubled.

iirc, in YUV you have a luminance layer (Y) and then the colors encoded
in a strange way, like 1 value for 2 pixels for the width in the U and V
layers. Well, something like that. Maybe it's a bug in the colorspace
conversion because you don't make it explicit ?


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Re: [PD] running Pd with a timer for an installation?

2012-07-10 Thread Simon Wise

On 09/07/12 14:43, Richie Cyngler wrote:

Hi All,

I'm planning on using Pd for an installation in Melbourne in a couple of
weeks. It's running fine, Pduino working, sensors working. I'm just
wondering is there is a object (or series) of objects I can use to power
down the patch, or even kill Pd, at a designated time. The installation
will run into the night for a week, I'll be there to start it up each night
but not to shut it down. I'm probably running on OSX, windows may be an
option. A sleep or shutdown timer for the OS would be very useful too,
seems odd these are not standard.

Any suggestions?


as others mentioned, system preferences let you tell the computer to shut down 
at a set time, and also to startup again when power is restored after switching 
off if you like,


a user can be set up to login automatically on startup in the accounts 
preferences,

what hasn't been mentioned is the easiest place to get a patch starting 
automatically on login of that user is in the dock ... put the patch in the 
dock, then check the appropriate box


if you need a set of things starting in a fixed order then you could start them 
from a little shell script and put that in the dock to be started at login


or use an applescript, or these days automator, if you prefer that to shell and 
again put it in the dock etc


most of these have been part of OSX forever, and something quite similar was 
part of OS9 before that if I remember correctly.




There are many other more arcane ways to achieve this as well, but for me this 
system, especially making sure that switching off then back on resets and 
restarts everything correctly has made life much easier with installations - 
gallery attendants are usually able to use a power switch, but often anything 
more complicated is too intimidating. Even several computers communicating over 
a LAN have worked well that way ... with a little thought and some appropriate 
delays after the [loadbang]s to make sure the network is up and running before 
pd tries to connect.


The power off - power on cycle is fine if you are not changing the files you 
start up from, and the journaling on HFS+ seems very robust and tolerant of just 
switching off.



Simon

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Re: [PD] Detuning reverb ?

2012-07-10 Thread Pierre Massat
I got something working really nicely (using a short delay with a high
feedback to get some sustain for the pitchshifter and to leave out quiter
notes). I'll make a post tonight on my blog. Thank you all for your
precious help!
Btw, this instrumental version of the Hexx is really cool...

Cheers,

Pierre.

2012/7/10 tim vets timv...@gmail.com



 2012/7/10 Thomas Grill g...@g.org

 Hi,
 i wouldn't count on it being a live (guitar) effect.
 It can be seen on http://www.youtube.com/watch?v=5eEVpY9rjxQ that it's
 obviously played by use of some midi keyboard.
 gr~~~


 or maybe it's the guy in the background at 0:34 turning his tuning knobs ?
 ;)


 2012/7/8 Pierre Massat pimas...@gmail.com:
  Dear List,
 
  I've been trying to recreate the effect that can be heard on Pavement's
 The
  Hexx (http://www.youtube.com/watch?v=6N5tx68-d2I). It sounds like a
  constantly downward detuning reverb, I have no idea if this is an
 existing
  guitar effect or if it was created in studio by Nigel Godrich. My last
  attempt resulted in this
  (http://guitarextended.wordpress.com/2012/07/08/detuning-delay/), which
  doesn't really sound like the original at all...
 
  I think I need delay lines driven by a phasor with a squared output, so
 that
  the speed at which the length of the delays increases is not constant. I
  also think I need to envelop the delay lines somehow, and switch between
  them so that the maximum length is never reached. But right now I short
 of
  ideas. From what i've found on the web, this should be doable with a
  granular delay, but I never used any granular stuff.
 
  Any suggestion is welcome...
 
  Cheers!
 
  Pierre.
 
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Re: [PD] Detuning reverb ?

2012-07-10 Thread Pierre Massat
Here's the link to the post, if you want to listen to the result and get
the patch.
http://guitarextended.wordpress.com/2012/07/10/thehexxciter-detuning-reverb-better/

Cheers!

Pierre.

2012/7/10 Pierre Massat pimas...@gmail.com

 I got something working really nicely (using a short delay with a high
 feedback to get some sustain for the pitchshifter and to leave out quiter
 notes). I'll make a post tonight on my blog. Thank you all for your
 precious help!
 Btw, this instrumental version of the Hexx is really cool...

 Cheers,

 Pierre.


 2012/7/10 tim vets timv...@gmail.com



 2012/7/10 Thomas Grill g...@g.org

 Hi,
 i wouldn't count on it being a live (guitar) effect.
 It can be seen on http://www.youtube.com/watch?v=5eEVpY9rjxQ that it's
 obviously played by use of some midi keyboard.
 gr~~~


 or maybe it's the guy in the background at 0:34 turning his tuning knobs
 ? ;)


 2012/7/8 Pierre Massat pimas...@gmail.com:
  Dear List,
 
  I've been trying to recreate the effect that can be heard on
 Pavement's The
  Hexx (http://www.youtube.com/watch?v=6N5tx68-d2I). It sounds like a
  constantly downward detuning reverb, I have no idea if this is an
 existing
  guitar effect or if it was created in studio by Nigel Godrich. My last
  attempt resulted in this
  (http://guitarextended.wordpress.com/2012/07/08/detuning-delay/),
 which
  doesn't really sound like the original at all...
 
  I think I need delay lines driven by a phasor with a squared output,
 so that
  the speed at which the length of the delays increases is not constant.
 I
  also think I need to envelop the delay lines somehow, and switch
 between
  them so that the maximum length is never reached. But right now I
 short of
  ideas. From what i've found on the web, this should be doable with a
  granular delay, but I never used any granular stuff.
 
  Any suggestion is welcome...
 
  Cheers!
 
  Pierre.
 
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Re: [PD] Detuning reverb ?

2012-07-10 Thread Michael Zacherl (remote)

_very_ nice!! :-) m.

Zitat von Pierre Massat pimas...@gmail.com:


Here's the link to the post, if you want to listen to the result and get
the patch.
http://guitarextended.wordpress.com/2012/07/10/thehexxciter-detuning-reverb-better/

Cheers!

Pierre.

2012/7/10 Pierre Massat pimas...@gmail.com


I got something working really nicely (using a short delay with a high
feedback to get some sustain for the pitchshifter and to leave out quiter
notes). I'll make a post tonight on my blog. Thank you all for your
precious help!
Btw, this instrumental version of the Hexx is really cool...

Cheers,

Pierre.


2012/7/10 tim vets timv...@gmail.com




2012/7/10 Thomas Grill g...@g.org


Hi,
i wouldn't count on it being a live (guitar) effect.
It can be seen on http://www.youtube.com/watch?v=5eEVpY9rjxQ that it's
obviously played by use of some midi keyboard.
gr~~~



or maybe it's the guy in the background at 0:34 turning his tuning knobs
? ;)



2012/7/8 Pierre Massat pimas...@gmail.com:
 Dear List,

 I've been trying to recreate the effect that can be heard on
Pavement's The
 Hexx (http://www.youtube.com/watch?v=6N5tx68-d2I). It sounds like a
 constantly downward detuning reverb, I have no idea if this is an
existing
 guitar effect or if it was created in studio by Nigel Godrich. My last
 attempt resulted in this
 (http://guitarextended.wordpress.com/2012/07/08/detuning-delay/),
which
 doesn't really sound like the original at all...

 I think I need delay lines driven by a phasor with a squared output,
so that
 the speed at which the length of the delays increases is not constant.
I
 also think I need to envelop the delay lines somehow, and switch
between
 them so that the maximum length is never reached. But right now I
short of
 ideas. From what i've found on the web, this should be doable with a
 granular delay, but I never used any granular stuff.

 Any suggestion is welcome...

 Cheers!

 Pierre.


--
on the road, in a lecture, whereever ...


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[PD] list-abs

2012-07-10 Thread richard duckworth
Hi all, 
trying to use [list-normalize], which relies on [list-abs] in turn and I keep 
getting 'couldn't create' messages (caused by the object list-abs). I'm on OS X 
10.6.8 w/ Pd-xtended 0.43 (and 0.42 too). I've tried it on Win7 + Ubuntu  as 
well but to no avail. I've checked that the externals are loaded. Any thoughts? 
All the best, Rich 
 
Rich Duckworth
Lecturer in Music Technology
Department of Music
House 5 
Trinity College 
Dublin 2
Ireland


Tel 353 1 896 1500


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Re: [PD] list-abs

2012-07-10 Thread Kaj Ailomaa
You'll need to enable the library. There are numerous ways to do that. 

* [list-abs/list-normalize]. 
* [import list-abs]
* [declare -lib list-abs] (will require you to reload the patch)
* You can start pd with: pd -lib list-abs
* Add paths and libraries in pd settings (which end up in a config file
somewhere)

(sorry, didn't send to the list at first)

On Tue, 2012-07-10 at 14:53 -0700, richard duckworth wrote:
 Hi all, 
 trying to use [list-normalize], which relies on [list-abs] in turn and I keep 
 getting 'couldn't create' messages (caused by the object list-abs). I'm on OS 
 X 10.6.8 w/ Pd-xtended 0.43 (and 0.42 too). I've tried it on Win7 + Ubuntu  
 as well but to no avail. I've checked that the externals are loaded. Any 
 thoughts? 
 All the best, Rich 
  
 Rich Duckworth
 Lecturer in Music Technology
 Department of Music
 House 5 
 Trinity College 
 Dublin 2
 Ireland
 
 
 Tel 353 1 896 1500
 
 
 It's the most devastating moment in a young mans life, when he quite 
 reasonably says to himself, I shall never play The Dane!
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Re: [PD] list-abs

2012-07-10 Thread José Rafael Subía Valdez
Actually, that lib is a bunch of externals so declare doesnt exactly
apply... I dont know exactly why it happens, but it does... I had the same
issue... what I did is, I opened the [list-abs] abstraction  that stands
for list absolute value and made a subpatch with its content.

On Tue, Jul 10, 2012 at 6:53 PM, richard duckworth
richduckwo...@yahoo.comwrote:

 Hi all,
 trying to use [list-normalize], which relies on [list-abs] in turn and I
 keep getting 'couldn't create' messages (caused by the object list-abs).
 I'm on OS X 10.6.8 w/ Pd-xtended 0.43 (and 0.42 too). I've tried it on Win7
 + Ubuntu  as well but to no avail. I've checked that the externals are
 loaded. Any thoughts?
 All the best, Rich

 Rich Duckworth
 Lecturer in Music Technology
 Department of Music
 House 5
 Trinity College
 Dublin 2
 Ireland

 Tel 353 1 896 1500


 It's the most devastating moment in a young mans life, when he quite
 reasonably says to himself, I shall never play The Dane!

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 Pd-list@iem.at mailing list
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Re: [PD] list-abs

2012-07-10 Thread Kaj Ailomaa
On Tue, 2012-07-10 at 23:14 -0300, José Rafael Subía Valdez wrote:
 Actually, that lib is a bunch of externals so declare doesnt exactly
 apply... I dont know exactly why it happens, but it does... I had the same
 issue... what I did is, I opened the [list-abs] abstraction  that stands
 for list absolute value and made a subpatch with its content.
 

declare worked just fine when I tried it.

 On Tue, Jul 10, 2012 at 6:53 PM, richard duckworth
 richduckwo...@yahoo.comwrote:
 
  Hi all,
  trying to use [list-normalize], which relies on [list-abs] in turn and I
  keep getting 'couldn't create' messages (caused by the object list-abs).
  I'm on OS X 10.6.8 w/ Pd-xtended 0.43 (and 0.42 too). I've tried it on Win7
  + Ubuntu  as well but to no avail. I've checked that the externals are
  loaded. Any thoughts?
  All the best, Rich
 
  Rich Duckworth
  Lecturer in Music Technology
  Department of Music
  House 5
  Trinity College
  Dublin 2
  Ireland
 
  Tel 353 1 896 1500
 
 
  It's the most devastating moment in a young mans life, when he quite
  reasonably says to himself, I shall never play The Dane!
 
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  http://lists.puredata.info/listinfo/pd-list
 
 
 
 
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|
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