date:20120219


Le 2012-02-02 à 22:12:00, Hans-Christoph Steiner a écrit :

On Feb 2, 2012, at 1:59 AM, Mathieu Bouchard wrote:
Pd is «half» of a Cocoa app, because on one hand Tcl/Tk on OSX is a 
portability layer over Cocoa, but on the other hand doesn't follow 
every convention specified by Cocoa, and isn't designed to let a Tcl/Tk 
app access every existing Cocoa feature either.


Tk/Cocoa is Cocoa, Pd-extended is still using Tk/Carbon.  Hopefully we 
can switch to Tk/Cocoa in 0.44.


Right. What I say only applies if replacing the word Cocoa by the word 
Carbon. In any case, making Tk buttons and sliders on either Tk/Carbon or 
Tk/Cocoa gives round Aqua buttons  sliders using Apple's code (no 
imitation), but people using Tk are often not trying to follow Apple's UI 
guidelines, except maybe the most important ones.


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Re: [PD] Resonant filter using cpole~ czero~


Le 2012-02-03 à 09:46:00, Frank Barknecht a écrit :

Most filters in the rj library (https://github.com/rjdj/rjlib) use a 
similar approach. They even include a biquad-clone written with 
elementary filters.


Why would you clone biquad using elementary filters ? Is it just to show 
that it's possible, or is it to make it fully signal-rate ?


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Re: [PD] minicomputers for pd + gem (linux)

2012-02-19 Thread IOhannes m zmölnig


On 02/17/12 21:43, Andy Farnell wrote:

As Ubuntu continues to get heavier I heartily recommend
you look at stock Debian Squeeze with a lite window manager
if you want to use the machine for artistic work, rather than
as a general purpose desktop.



as a system administrator i think Debian squeeze is a great 
distribution to run my servers.


as an artist working with multimedia content, i would rather go with 
something more experimental, namely Debian wheezy (aka testing).
in reality i usually run Debian wheezy/sid (aka testing/unstable), 
but then i'm doing debian development and the like (so this might be a 
bit too hot for ordinary users)


wheezy usually has up-to-data packages, e.g. you get Pd-0.43.1

note however, that since testing is a moving target, you might get 
masses of updates every other week.


mfg.sv
IOhannes

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Re: [PD] hid object does not work for wacom tablet under Linux

2012-02-19 Thread IOhannes m zmölnig


On 02/18/12 20:36, Hans-Christoph Steiner wrote:


[hid] on Linux relies on a /dev/input/event* devices.  If that device does not 
provide a /dev/input/event* device, then [hid] can't read it.  One possibility 
is that you are using an X driver for that tablet, so not a /dev/input/event* 
device.

another possibility is, that you don't have read permissions for the 
/dev/input/eventX device (that points to your wacom tablet)


gfmasfrt
IOhannes


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Re: [PD] Resonant filter using cpole~ czero~


Le 2012-02-02 à 19:13:00, Mike Moser-Booth a écrit :


a = -r²
b = 2r*cos(ω)
c = 1 (an overall gain is applied separately, which is like scaling a,b,c
all at once)


I don't think this is entirely accurate. I think a and c should be
switched here, though of course when finding b²-4ac that doesn't
really matter.


It depends whether you write ax²+bx+c or a+bx+cx². Both forms are 
convenient, and the latter expands better in cases of variable degrees 
(letters don't get renamed when adding a term), but the former is more 
common for cases that have only a degree fixed at 2 or 3.


Also, when applying a gain to a recursive filter, it's not really the 
same as scaling all the coefficients. If you were to scale them first, 
then the gain would affect the feedback portions of the filter. Applying 
the gain after means the feedback samples are not scaled by the gain.


Those filters are all linear. This means that you can effectively commute 
them with a constant gain [*~] without any difference. However, it will 
make a difference when the gain of [*~] changes quickly while the main 
input changes too.



If you think of it in terms of its transfer function, it would look
more like this: H(z) = g*(1 / (1 - 2r*cos(ω)*(z^-1) + r^2 * z(^-2) ))


Well, I was thinking of it in terms of 1/H(z) or 1/gH(z).

But are you sure that you got the signs right in the denominator ?

It seems that [bp~] is a mere combination of a [lop~], a [hip~] and a 
[*~] (plus the calculation of their coefficients).


But [hip~] isn't an all-pole filter. It has a zero at DC.


oops.

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Re: [PD] new editing features of Pd-extended 0.43, now in beta!

On Sun, Feb 19, 2012, at 11:19, Ángel Faraldo wrote:

Begin forwarded message:

What kind of computer and audio interface are you using?

macbook pro 2.66GHz Intel Core 2 Duo with OSX 10.6.8. I tested it with
the built-in audio and a RME Fireface 800 with similar results.

I'm on a very similar machine', a MacBook pro 3 - 2.4ghz running
10.6.8. Ive never seen this before. I don't have any external
interface, perhaps its related to the drivers from your interface? Just
a guess. Do other audio apps work? Like Audacity? It also uses
portaudio.

Please file a bug report on this one too.

.hc

Hmm yeah, [cputime] does seem broken. Could you post a bug report please?

done

ángel faraldo

.hc

On Feb 18, 2012, at 2:54 PM, Ángel Faraldo wrote:

Hi there,

also, [cputime] appears not to work.

(pd-0.43.1-extended-20120218-macosx105-i386)

Ángel Faraldo
_
www.angelfaraldo.info

On Feb 18, 2012, at 6:41 PM, João Pais wrote:

It sounds as if the audio isn't synced to the system card, or something.
The sinus in the audio test patch has lots of irregular clicks, almost as
if they would be dropouts.

What do you mean by noisy? Can you give more information? I really
don't know much about Windows, so I rely on others to tell me how things
there should be handled. patco and pob have been doing a lot of
valuable work there.

.hc

On Feb 18, 2012, at 12:13 PM, João Pais wrote:

Hi Hans,

great job. But, here in XP, I get audio problems: trying to run with
asio (as I always do with 0.42), the audio is very noisy.
Audio options are -asio -audioindev 2 -audiooutdev 2 -channels 2
-midiindev 1 -midioutdev 1 -audiobuf 40, and they always worked with
previous versions of pd-ext.

João

http://at.or.at/hans/blog/2012/02/17/new-editing-feature-of-pd-extended-0-43-now-in-beta/

The Pd-extended 0.43 release has been brewing an extra long time,
about 18 months now, mostly because there are lots of big
improvements, and we wanted to make sure we got it right, so your
patches all work, but the improvements all shine. Its now solidly
beta, so we’re looking for testers. Download a nightly build to try
here:

http://autobuild.puredata.info/auto-build/latest/

First off, the pd-gui side of Pd has been re-written from scratch.
When you run Pd, you are actually running two programs: pd is the core
engine and pd-gui is the GUI. Since basically all computers now come
with multiple CPU cores, this means that pd-gui will usually run on a
separate CPU core than pd, so they don’t step on each other’s toes. pd
can entirely take over its own core. If you want to make your patch
use more CPU cores, then check out the [pd~] object introduced in the
last release (0.42.5).

pd still handles some of the GUI stuff, but we are working on
splitting that out for the 0.44 release. That is a big chunk of work
but it will also bring big gains. In particular, it means that it will
be possible for people to write their own GUIs for Pd, covering not
just the display of the patch, but also the editing, and everything
else. You like OpenFrameworks, python, iOS, JUCE, Qt, etc.? Write your
own pd-gui using the toolkit of your choice. That’s the idea at least.
That will take a solid chunk of work, so we are looking for people to
join that effort.

There are so many ideas for making a better editing experience in Pd,
this release makes big strides to address the editing experience.
There are new features like Magic Glass, Autotips, Autopatch and Perf
Mode, all available on the Edit menu.

• Magic Glass let’s you magically see the messages as they pass
through the cords. Just turn it on and hover above a cord, and you’ll
see the messages as they go by. You can even look at signal/audio
cords.

• Autotips gives you tips about what an object does, what its inlet
expects, and what comes out of the outlets.

• Autopatch mode automatically connects objects as you create them.

• Perf Mode, is a mode for performance that makes it harder to
accidentally close windows that

Re: [PD] vbap speaker position not correct?


If the amp numbers coming out of vbap are correct, then I think the
problem is in your patch ' your speaker setup, or your space.

.hc

On Sat, Feb 18, 2012, at 20:16, Christoph Kuhr wrote:
 Hi list,
 
 i used the following define_loudspeakers object:
 
 define_loudspeakers 3 -45 0   0 4545 090 45145 0180 
 45-145 0-90 45
 
 but if i make a horizontal circle trajectory, the sound comes from 
 strange positions.
 its like an inclined ellipse or something...
 i also tried ls-triplets and ls-directions messages without effort.
 
 the values at the vbap outputs are correct.
 
 what could be the problem?
 
 regards
 Ck
 
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Re: [PD] Error Message 0.43-1 Windows

2012-02-19 Thread Miller Puckette

I'm struggling with that one (it's reported on 
http://sourceforge.net/tracker/?func=detailaid=3484492group_id=55736atid=478070
)
and hope to have a fix in a few days.

cheers
Miller

On Sun, Feb 19, 2012 at 04:37:00AM -0800, JF wrote:
 When I try to open a patch with 0.43-1the error pasted below pops up.
 
 I can then close the error and patch as normally and everything seems to 
 work fine but I it's a bit annoying. I've tried clearing the Pd registry 
 entries but I still get the same error.
 
 Any ideas?!
 
 Would be greatly appreciated as always!
 
 John.
 
 
 couldn't load library C:/Documents and 
 Settings/Chopstickkk/Desktop/!!!pd/lib/tcl8.5/reg/tclreg12.dll: this library 
 or a dependent library could not be found in library path 
 couldn't load library C:/Documents and 
 Settings/Chopstickkk/Desktop/!!!pd/lib/tcl8.5/reg/tclreg12.dll: this library 
 or a dependent library could not be found in library path 
     while executing 
 load {C:/Documents and 
 Settings/Chopstickkk/Desktop/!!!pd/lib/tcl8.5/reg/tclreg12.dll} registry 
     (package ifneeded registry 1.2.1 script) 
     invoked from within 
 package require registry 
     (procedure write_config_win line 2) 
     invoked from within 
 write_config_win $data $adomain $akey $arr  
     (procedure write_config line 4) 
     invoked from within 
 write_config $::recentfiles_list $::recentfiles_domain $::recentfiles_key 
 true 
     (procedure ::pd_guiprefs::write_recentfiles line 2) 
     invoked from within 
 ::pd_guiprefs::write_recentfiles  
     (procedure ::pd_menus::update_recentfiles_on_menu line 24) 
     invoked from within 
 ::pd_menus::update_recentfiles_on_menu $menubar.file $write 
     (procedure ::pd_menus::update_recentfiles_menu line 5) 
     invoked from within 
 ::pd_menus::update_recentfiles_menu 
     (procedure ::pd_guiprefs::update_recentfiles line 8) 
     invoked from within 
 ::pd_guiprefs::update_recentfiles $filename 
     (procedure open_file line 11) 
     invoked from within 
 open_file $filename 
     (procedure menu_open line 6) 
     invoked from within 
 menu_open 
     (command bound to event)
 
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Re: [PD] new editing features of Pd-extended 0.43, now in beta!

Right. But why is it looking for that one if the correct one is
included in the Pd-0.43.1-extended app? When I took out the one had
installed, I still got the error. But it worked fine when I copied the
one in the app and replaced the bad version. I guess I'm just
wondering why the Tcl framework is in the app if it's not being used.

.mmb

On Sat, Feb 18, 2012 at 8:25 PM, Hans-Christoph Steiner h...@at.or.at wrote:

That's the right one. Here's the problem:

Reason: no suitable image found. Did find:
/Library/Frameworks/Tcl.framework/Versions/8.5/Tcl: mach-o, but wrong
architecture

You have installed a Tcl framework in /Library/Frameworks that seems to be
for the wrong architecture.

.hc

On Feb 18, 2012, at 3:53 PM, Mike Moser-Booth wrote:

I downloaded the one named Pd-0.43.1-extended-macosx105-i386.dmg. Is
that not the right one?

.mmb

On Sat, Feb 18, 2012 at 2:45 PM, Hans-Christoph Steiner h...@at.or.at
wrote:

Looks like you downloaded the 64-bit version. See my previous mail in this
thread about the 64-bit version.

.hc

On Feb 18, 2012, at 1:44 PM, Mike Moser-Booth wrote:

Hey Hans,

I'm on OSX 10.5, and I'm getting this at startup:

/Applications/Pd-0.43.1-extended-20120217.app/Contents/Resources/Scripts/../extra/tclpd/tclpd.pd_darwin:
dlopen(/Applications/Pd-0.43.1-extended-20120217.app/Contents/Resources/Scripts/../extra/tclpd/tclpd.pd_darwin,
10): Library not loaded:
@executable_path/../Frameworks/Tcl.framework/Versions/8.5/Tcl
Referenced from:
/Applications/Pd-0.43.1-extended-20120217.app/Contents/Resources/Scripts/../extra/tclpd/tclpd.pd_darwin
Reason: no suitable image found. Did find:
/Library/Frameworks/Tcl.framework/Versions/8.5/Tcl: mach-o, but wrong
architecture
/Applications/Pd-0.43.1-extended-20120217.app/Contents/Resources/Scripts/../startup/tclpd:
can't load startup library'!

For shits and giggles, I tried replacing the bad 8.5 folder that it
does find with the one included in the Pd-extended-20120217.app
package, and the error goes away. So, I'm guessing the
@executable_path isn't set correctly?

.mmb

--
Mike Moser-Booth - mmoserbo...@gmail.com
Master's Student in Music Technology
Schulich School of Music, McGill University
Centre for Interdisciplinary Research in Music Media and Technology

If you think education is expensive, try ignorance -Derek Bok

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Re: [PD] unpack type mismatch?

2012-02-19 Thread IOhannes m zmölnig


On 02/16/12 19:49, Hans-Christoph Steiner wrote:


What if this was handled in [float]?  Something like this:

- add a symbol method to [float]

- convert the symbol to a float, then back and compare

- if it matches, output the float out of the left inlet

- if it does not match, output the original symbol out of a new right
outlet, which would be an everything else outlet like [select]
[route], etc.


i like the idea, so i added it to zexy's [atoi] and [atof] methods.

regarding [f], i think it would be feature bloat and would rather not 
have it.


mgf
IOhannes

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Re: [PD] Resonant filter using cpole~ czero~

On Sun, Feb 19, 2012 at 1:04 PM, Mathieu Bouchard ma...@artengine.ca wrote:
 Le 2012-02-02 à 19:13:00, Mike Moser-Booth a écrit :
 I don't think this is entirely accurate. I think a and c should be
 switched here, though of course when finding b²-4ac that doesn't
 really matter.


 It depends whether you write ax²+bx+c or a+bx+cx². Both forms are
 convenient, and the latter expands better in cases of variable degrees
 (letters don't get renamed when adding a term), but the former is more
 common for cases that have only a degree fixed at 2 or 3.

Ah, okay.

 Also, when applying a gain to a recursive filter, it's not really the same
 as scaling all the coefficients. If you were to scale them first, then the
 gain would affect the feedback portions of the filter. Applying the gain
 after means the feedback samples are not scaled by the gain.


 Those filters are all linear. This means that you can effectively commute
 them with a constant gain [*~] without any difference. However, it will make
 a difference when the gain of [*~] changes quickly while the main input
 changes too.

Right. I was just saying that, if you separate the gain from the
filter, the gain has to be applied at the input or the output. It's a
single operation. So if you incorporate it into the filter, scaling
the feedback coefficients has the effect of making it multiple
operations. Or at least that's how I understand it, anyway.

At any rate, the only reason I picked up on that in your previous
email is because I wanted to plot the frequency response of [bp~], and
at first I just applied the gain to all the coefficients without
thinking about. It didn't work. Then I remembered the gain should just
be applied to the FIR part of the filter, and it worked fine.

 If you think of it in terms of its transfer function, it would look
 more like this: H(z) = g*(1 / (1 - 2r*cos(ω)*(z^-1) + r^2 * z(^-2) ))


 Well, I was thinking of it in terms of 1/H(z) or 1/gH(z).

 But are you sure that you got the signs right in the denominator ?

Pretty sure, though I mess that up all the time. Aren't you supposed
change the signs of the feedback coefficients when z-transforming the
difference equation?

.mmb

-- 
Mike Moser-Booth - mmoserbo...@gmail.com
Master's Student in Music Technology
Schulich School of Music, McGill University
Centre for Interdisciplinary Research in Music Media and Technology

If you think education is expensive, try ignorance -Derek Bok

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Re: [PD] hid object does not work for wacom tablet under Linux

2012-02-19 Thread Sylvain Hanneton


Hello,

I used the last input-wacom driver :
insmod /home/.../input-wacom-0.12.1/2.6.30/wacom.ko
When loaded it creates  /dev/input/event14  and a /dev/input/wacom entries
I ran pd with sudo.
I tested the HID object with the example of the documentation. The 
info message displayed correctly the properties of the tablet.

However, when I tried to use the polling function, nothing happened.




On 19/02/2012 18:42, IOhannes m zmölnig wrote:

On 02/18/12 20:36, Hans-Christoph Steiner wrote:


[hid] on Linux relies on a /dev/input/event* devices.  If that device 
does not provide a /dev/input/event* device, then [hid] can't read 
it.  One possibility is that you are using an X driver for that 
tablet, so not a /dev/input/event* device.


another possibility is, that you don't have read permissions for the 
/dev/input/eventX device (that points to your wacom tablet)


gfmasfrt
IOhannes


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Re: [PD] Xth Sense awarded first prize first prize at Guthman Musical Instrument Competition

2012-02-19 Thread Marco Donnarumma

Thanks guys!

(sorry for the double first prize in the subject)

I'm honestly flattered, as the quality of the ideas presented at the event
was very high.
A rewarding experience overall, great conversations, inspiring jurors. Will
post a report as soon as I get back home.

And besides, I'm proud to keep on the fame of the Pure Data tradition in
this field following the work of Jaime... which was a great inspiration for
me.
who will be the next one??
:)

cheers,
Marco

p.s. Scott I didn't know you work in Pd, should have told me!


Congratulations Marco!


I was lucky enough to see your performances during the competition. Great

work!


Scott


~

  Congratulations!

Well done!


J



-- 
Marco Donnarumma
New Media + Sonic Arts Practitioner, Performer, Teacher, Director.
ACE, Sound Design MSc by Research (ongoing)
The University of Edinburgh, UK
~
Portfolio: http://marcodonnarumma.com
Research: http://res.marcodonnarumma.com | http://www.thesaddj.com |
http://www.flxer.net
Director: http://www.liveperformersmeeting.net
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Re: [PD] sigmund list sort

2012-02-19 Thread labyrinthuscochlearis

Thank you! I really have to get into GridFlow.
All the best, c

Am Samstag, den 18.02.2012, 11:28 -0500 schrieb Mathieu Bouchard:
 Le 2012-02-18 à 16:19:00, labyrinthuscochlearis a écrit :
 
  what would be a good way to transform sigmund~'s peaks output so that I 
  get a list with peak amplitudes but in the ascending order of the 
  corresponding frequencies?
 
 GridFlow's [#grade] gives you a list of item numbers in the order that you 
 need to pick them so that they be sorted. This can be used for sorting a 
 table with multiple columns according to one column, whereas other sorting 
 tools in Pd might only support sorting individual values.
 
http://gridflow.ca/help/%23grade-help.html
 
 You will need the appropriate conversion from list to grid (a kind of 
 super-list type) and grid to list. Also, [#store] is a great shortcut for 
 reordering elements using the output of [#grade].
 
 This uses a plugin that you'd download from http://gridflow.ca/
 
   __
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Re: [PD] [PD-announce] Xth Sense awarded first prize first prize at Guthman Musical Instrument Competition

2012-02-19 Thread Eduardo Flores Abad


Congratulations Marco!
Eduardo

Am 19.02.2012 15:28, schrieb Marco Donnarumma:

Dear all,

I'm coming back to Europe in few hours, but wanted to share this news.

http://www.gtcmt.gatech.edu/news/marco-donnarumma’s-xth-sense-named-world’s-most-innovative-new-musical-instrument

thanks to the whole community, without which this research would have 
not been possible.

best wishes,

--
Marco Donnarumma
New Media + Sonic Arts Practitioner, Performer, Teacher, Director.
ACE, Sound Design MSc by Research (ongoing)
The University of Edinburgh, UK
~
Portfolio: http://marcodonnarumma.com http://marcodonnarumma.com/
Research: http://res.marcodonnarumma.com 
http://res.marcodonnarumma.com/ | http://www.thesaddj.com 
http://www.thesaddj.com/ | http://www.flxer.net http://www.flxer.net/
Director: http://www.liveperformersmeeting.net 
http://www.liveperformersmeeting.net/



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Re: [PD] Error Message 0.43-1 Windows


I think Roman found the answer, it seems that the tclreg12.dll file is included 
in pd/bin rather than the path mentioned in the error message.

.hc

On Feb 19, 2012, at 1:19 PM, Miller Puckette wrote:

 I'm struggling with that one (it's reported on 
 http://sourceforge.net/tracker/?func=detailaid=3484492group_id=55736atid=478070
 )
 and hope to have a fix in a few days.
 
 cheers
 Miller
 
 On Sun, Feb 19, 2012 at 04:37:00AM -0800, JF wrote:
 When I try to open a patch with 0.43-1the error pasted below pops up.
 
 I can then close the error and patch as normally and everything seems to 
 work fine but I it's a bit annoying. I've tried clearing the Pd registry 
 entries but I still get the same error.
 
 Any ideas?!
 
 Would be greatly appreciated as always!
 
 John.
 
 
 couldn't load library C:/Documents and 
 Settings/Chopstickkk/Desktop/!!!pd/lib/tcl8.5/reg/tclreg12.dll: this 
 library or a dependent library could not be found in library path 
 couldn't load library C:/Documents and 
 Settings/Chopstickkk/Desktop/!!!pd/lib/tcl8.5/reg/tclreg12.dll: this 
 library or a dependent library could not be found in library path 
 while executing 
 load {C:/Documents and 
 Settings/Chopstickkk/Desktop/!!!pd/lib/tcl8.5/reg/tclreg12.dll} registry 
 (package ifneeded registry 1.2.1 script) 
 invoked from within 
 package require registry 
 (procedure write_config_win line 2) 
 invoked from within 
 write_config_win $data $adomain $akey $arr  
 (procedure write_config line 4) 
 invoked from within 
 write_config $::recentfiles_list $::recentfiles_domain $::recentfiles_key 
 true 
 (procedure ::pd_guiprefs::write_recentfiles line 2) 
 invoked from within 
 ::pd_guiprefs::write_recentfiles  
 (procedure ::pd_menus::update_recentfiles_on_menu line 24) 
 invoked from within 
 ::pd_menus::update_recentfiles_on_menu $menubar.file $write 
 (procedure ::pd_menus::update_recentfiles_menu line 5) 
 invoked from within 
 ::pd_menus::update_recentfiles_menu 
 (procedure ::pd_guiprefs::update_recentfiles line 8) 
 invoked from within 
 ::pd_guiprefs::update_recentfiles $filename 
 (procedure open_file line 11) 
 invoked from within 
 open_file $filename 
 (procedure menu_open line 6) 
 invoked from within 
 menu_open 
 (command bound to event)
 
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Re: [PD] Error Message 0.43-1 Windows

2012-02-19 Thread Miller Puckette

I think so too, just need to fix whatever script did the damage and test
it.

cheers
Miller

On Sun, Feb 19, 2012 at 04:46:34PM -0500, Hans-Christoph Steiner wrote:
 
 I think Roman found the answer, it seems that the tclreg12.dll file is 
 included in pd/bin rather than the path mentioned in the error message.
 
 .hc
 
 On Feb 19, 2012, at 1:19 PM, Miller Puckette wrote:
 
  I'm struggling with that one (it's reported on 
  http://sourceforge.net/tracker/?func=detailaid=3484492group_id=55736atid=478070
  )
  and hope to have a fix in a few days.
  
  cheers
  Miller
  
  On Sun, Feb 19, 2012 at 04:37:00AM -0800, JF wrote:
  When I try to open a patch with 0.43-1the error pasted below pops up.
  
  I can then close the error and patch as normally and everything seems to 
  work fine but I it's a bit annoying. I've tried clearing the Pd registry 
  entries but I still get the same error.
  
  Any ideas?!
  
  Would be greatly appreciated as always!
  
  John.
  
  
  couldn't load library C:/Documents and 
  Settings/Chopstickkk/Desktop/!!!pd/lib/tcl8.5/reg/tclreg12.dll: this 
  library or a dependent library could not be found in library path 
  couldn't load library C:/Documents and 
  Settings/Chopstickkk/Desktop/!!!pd/lib/tcl8.5/reg/tclreg12.dll: this 
  library or a dependent library could not be found in library path 
  while executing 
  load {C:/Documents and 
  Settings/Chopstickkk/Desktop/!!!pd/lib/tcl8.5/reg/tclreg12.dll} registry 
  (package ifneeded registry 1.2.1 script) 
  invoked from within 
  package require registry 
  (procedure write_config_win line 2) 
  invoked from within 
  write_config_win $data $adomain $akey $arr  
  (procedure write_config line 4) 
  invoked from within 
  write_config $::recentfiles_list $::recentfiles_domain $::recentfiles_key 
  true 
  (procedure ::pd_guiprefs::write_recentfiles line 2) 
  invoked from within 
  ::pd_guiprefs::write_recentfiles  
  (procedure ::pd_menus::update_recentfiles_on_menu line 24) 
  invoked from within 
  ::pd_menus::update_recentfiles_on_menu $menubar.file $write 
  (procedure ::pd_menus::update_recentfiles_menu line 5) 
  invoked from within 
  ::pd_menus::update_recentfiles_menu 
  (procedure ::pd_guiprefs::update_recentfiles line 8) 
  invoked from within 
  ::pd_guiprefs::update_recentfiles $filename 
  (procedure open_file line 11) 
  invoked from within 
  open_file $filename 
  (procedure menu_open line 6) 
  invoked from within 
  menu_open 
  (command bound to event)
  
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Re: [PD] Resonant filter using cpole~ czero~


Le 2012-02-19 à 14:08:00, Mike Moser-Booth a écrit :

Pretty sure, though I mess that up all the time. Aren't you supposed 
change the signs of the feedback coefficients when z-transforming the 
difference equation?


Why would you change the signs of a and b but not c ?

(Was I giving the formula relative to ax²+bx+c=0 or did I assume ax²+bx=c 
by accident ?)


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Re: [PD] [PD-announce] Language Design / Conlang: do you know any examples in Sound Art or Arts in general?


Le 2012-01-21 à 22:49:00, Andy Farnell a écrit :

Actually I had a little play around with it since Matju made me use 
mbrola


But did you get IPA to work, in the end ?

And you didn't explain about the UTF problem.

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Re: [PD] new editing features of Pd-extended 0.43, now in beta!


Good point, hopefully fixed with this commit:

http://pure-data.svn.sourceforge.net/viewvc/pure-data?view=revisionrevision=16002

.hc

On Feb 19, 2012, at 1:25 PM, Mike Moser-Booth wrote:

 Right. But why is it looking for that one if the correct one is
 included in the Pd-0.43.1-extended app? When I took out the one had
 installed, I still got the error. But it worked fine when I copied the
 one in the app and replaced the bad version. I guess I'm just
 wondering why the Tcl framework is in the app if it's not being used.
 
 .mmb
 
 On Sat, Feb 18, 2012 at 8:25 PM, Hans-Christoph Steiner h...@at.or.at wrote:
 
 That's the right one.  Here's the problem:
 
  Reason: no suitable image found.  Did find:
   /Library/Frameworks/Tcl.framework/Versions/8.5/Tcl: mach-o, but 
 wrong
 architecture
 
 
 You have installed a Tcl framework in /Library/Frameworks that seems to be 
 for the wrong architecture.
 
 .hc
 
 On Feb 18, 2012, at 3:53 PM, Mike Moser-Booth wrote:
 
 I downloaded the one named Pd-0.43.1-extended-macosx105-i386.dmg. Is
 that not the right one?
 
 .mmb
 
 On Sat, Feb 18, 2012 at 2:45 PM, Hans-Christoph Steiner h...@at.or.at 
 wrote:
 
 Looks like you downloaded the 64-bit version.  See my previous mail in 
 this thread about the 64-bit version.
 
 .hc
 
 On Feb 18, 2012, at 1:44 PM, Mike Moser-Booth wrote:
 
 Hey Hans,
 
 I'm on OSX 10.5, and I'm getting this at startup:
 
 /Applications/Pd-0.43.1-extended-20120217.app/Contents/Resources/Scripts/../extra/tclpd/tclpd.pd_darwin:
 dlopen(/Applications/Pd-0.43.1-extended-20120217.app/Contents/Resources/Scripts/../extra/tclpd/tclpd.pd_darwin,
 10): Library not loaded:
 @executable_path/../Frameworks/Tcl.framework/Versions/8.5/Tcl
  Referenced from:
 /Applications/Pd-0.43.1-extended-20120217.app/Contents/Resources/Scripts/../extra/tclpd/tclpd.pd_darwin
  Reason: no suitable image found.  Did find:
   /Library/Frameworks/Tcl.framework/Versions/8.5/Tcl: mach-o, but 
 wrong
 architecture
 /Applications/Pd-0.43.1-extended-20120217.app/Contents/Resources/Scripts/../startup/tclpd:
 can't load startup library'!
 
 For shits and giggles, I tried replacing the bad 8.5 folder that it
 does find with the one included in the Pd-extended-20120217.app
 package, and the error goes away. So, I'm guessing the
 @executable_path isn't set correctly?
 
 .mmb
 
 
 
 -- 
 Mike Moser-Booth - mmoserbo...@gmail.com
 Master's Student in Music Technology
 Schulich School of Music, McGill University
 Centre for Interdisciplinary Research in Music Media and Technology
 
 If you think education is expensive, try ignorance -Derek Bok







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[PD] patching circle tomorrow Monday Feb 20 in nyc

2012-02-19 Thread sonia yuditskaya

Hello,
tomorrow at 6 we will have the february nyc patching circle at 319 scholes

here are the details for anyone interested. See you there!

Enter a New Dawn,

The NYC Patching Circle is a monthly meetup for patchers to come together.
Weather you work with or on Pd, Max/MSP/Jitter, , Eyesweb, Labview,
Touchdesigner, Grasshopper, etc. or even if you have never tried before,
the Patching Circle is a place to share and ask questions. Beginners
and experienced patchers are welcome.

This week we will go into the basics of graphics programming in pure data,
play with kinects, and take advantage of the venue to jam.

Work on personal projects, professional projects, school projects, ask
for help, help others, or just patch quietly to yourself, in a venue
space equipped for performance, full of other people patching patches and
helping other people patch.

Monday February 2o, 2012, 6:00pm-10:00pm
Free!


Sofy Yuditskaya
s~ http://yuditskaya.com
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Re: [PD] hid object does not work for wacom tablet under Linux


I believe that X11 gets locks access to the device exclusively.  This affects 
all devices.  Search puredata.info and the archives of this list for notes on 
how to get around this.

.hc

On Feb 19, 2012, at 2:22 PM, Sylvain Hanneton wrote:

 Hello,
 
 I used the last input-wacom driver :
 insmod /home/.../input-wacom-0.12.1/2.6.30/wacom.ko
 When loaded it creates  /dev/input/event14  and a /dev/input/wacom entries
 I ran pd with sudo.
 I tested the HID object with the example of the documentation. The info 
 message displayed correctly the properties of the tablet.
 However, when I tried to use the polling function, nothing happened.
 
 
 
 
 On 19/02/2012 18:42, IOhannes m zmölnig wrote:
 On 02/18/12 20:36, Hans-Christoph Steiner wrote:
 
 [hid] on Linux relies on a /dev/input/event* devices.  If that device does 
 not provide a /dev/input/event* device, then [hid] can't read it.  One 
 possibility is that you are using an X driver for that tablet, so not a 
 /dev/input/event* device.
 
 another possibility is, that you don't have read permissions for the 
 /dev/input/eventX device (that points to your wacom tablet)
 
 gfmasfrt
 IOhannes
 
 
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Re: [PD] Resonant filter using cpole~ czero~

On Sun, Feb 19, 2012 at 4:54 PM, Mathieu Bouchard ma...@artengine.ca wrote:
 Why would you change the signs of a and b but not c ?

 (Was I giving the formula relative to ax²+bx+c=0 or did I assume ax²+bx=c by
 accident ?)

I think it has to do with where c is in the difference equation:

c*y[n] = g*x[n] + a*y[n-1] + b*y[n-2]

Julius Smith explains it better than I could:
https://ccrma.stanford.edu/~jos/fp2/Z_Transform_Difference_Equations.html

.mmb

-- 
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Master's Student in Music Technology
Schulich School of Music, McGill University
Centre for Interdisciplinary Research in Music Media and Technology

If you think education is expensive, try ignorance -Derek Bok

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[PD] patching circles other than New York

2012-02-19 Thread Jim Hickcox

I am wicked jealous of Sofy's New York Patching circle, because I'm
just far enough away and just employed enough that I can't get up for
it.

Are there folks near Washington DC who would like to have a patching circle?
I will try to organize a space if there are some people into it
And there can be beer here, too, if that's all it takes.

-Jim Hickcox
www.jimhickcox.com

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Re: [PD] Resonant filter using cpole~ czero~


Le 2012-02-19 à 17:48:00, Mike Moser-Booth a écrit :

On Sun, Feb 19, 2012 at 4:54 PM, Mathieu Bouchard ma...@artengine.ca wrote:

Why would you change the signs of a and b but not c ?
(Was I giving the formula relative to ax²+bx+c=0 or did I assume ax²+bx=c by
accident ?)


I think it has to do with where c is in the difference equation:
c*y[n] = g*x[n] + a*y[n-1] + b*y[n-2]


This equation uses a for the middle term (y[n-1]) ? Weird.

I'd expect b to go with y[n-1], whereas a and c would go with either y[n] 
or y[n-2]...


BTW, the equations I used are things that I reconstituted from the source 
code of [biquad~] in pd/src/d_filter.c. They don't come from manuals.


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Re: [PD] [PD-announce] Xth Sense awarded first prize first prize at Guthman Musical Instrument Competition

2012-02-19 Thread Scott McCoid

Sorry I didn't say anything Marco...yes, I'm definitely a Pd user. I'm
usually just kind of lurking on the mailing list.

On Sun, Feb 19, 2012 at 3:27 PM, Eduardo Flores Abad
m...@eduardoflores.dewrote:

 **
 Congratulations Marco!
 Eduardo

 Am 19.02.2012 15:28, schrieb Marco Donnarumma:

 Dear all,

  I'm coming back to Europe in few hours, but wanted to share this news.

  http://www.gtcmt.gatech.edu/news/marco-donnarumma
 ’s-xth-sense-named-world’s-most-innovative-new-musical-instrument

  thanks to the whole community, without which this research would have
 not been possible.
 best wishes,

 --
 Marco Donnarumma
 New Media + Sonic Arts Practitioner, Performer, Teacher, Director.
 ACE, Sound Design MSc by Research (ongoing)
 The University of Edinburgh, UK
 ~
 Portfolio: http://marcodonnarumma.com
 Research: http://res.marcodonnarumma.com | http://www.thesaddj.com |
 http://www.flxer.net
 Director: http://www.liveperformersmeeting.net


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Re: [PD] floating-point question


That's a problem with floating point calculations on computers, unfortuantely.  
Hard to work around that.

.hc

On Feb 17, 2012, at 4:27 PM, Mirko Petrovich wrote:

 Hi all,
 
 I'm having a problem with a patch doing some very simple math. The problem is 
 that float 0.1 represents as 0.085 in some cases.
 I know this has to do with floating-point representation but sometimes this 
 lead to bigger errors.
 Is there any way to fix this ? Changing the width of the number box doesn't 
 work.
 Thanks for any help and sorry if this has been discussed earlier.
 
 Saludos
 
 Mirko
 
 
 
 
 
 
 
 
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Re: [PD] floating-point question


Le 2012-02-19 à 21:52:00, Hans-Christoph Steiner a écrit :

On Feb 17, 2012, at 4:27 PM, Mirko Petrovich wrote:

I'm having a problem with a patch doing some very simple math. The problem is 
that float 0.1 represents as 0.085 in some cases.

That's a problem with floating point calculations on computers, unfortuantely.  
Hard to work around that.


0.1 is usually represented as exactly
  13421773/134217728 = 0.10001490116...
  where 134217728 = pow(2,27)

For various reasons, the numerator can be a few units up or down :
  13421772/134217728 = 0.099940395355...
  13421769/134217728 = 0.099716877937...
  13421776/134217728 = 0.100238418580...

As you can see, 0.085 is way off. You get that kind of value with a 
numerator around 13421571. That's 202 notches off !


If you sum together a lot of 0.001 values to make a 0.1, the error 
accumulates. It's more accurate to count using whole numbers, and divide 
the whole number each time.


It's sometimes important to cut down on accuracy for the benefit of 
efficiency, but doing audio on today's laptops, you will probably not 
encounter them. However, tablets and phones often have slow float 
calculators.


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Re: [PD] calling free-method on pd quit (was Re: Problem with tcpserver from iemnet)


On Feb 16, 2012, at 11:46 AM, IOhannes m zmölnig wrote:

 On 02/16/12 17:13, IOhannes m zmölnig wrote:
 fine; but not if you just do a [; pd quit(; see also my bug-report/patch
 about this on sf ( which seems to be down currently)
 
 it's up again, so here is the ticket:
 http://sf.net/tracker/index.php?func=detailaid=1502860group_id=55736atid=478072

I included it in Pd-extended 0.43.  So far, so good.  Doesn't seem to change 
quit times.  I tried some really big patches.

.hc




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Re: [PD] Resonant filter using cpole~ czero~

On Sun, Feb 19, 2012 at 6:12 PM, Mathieu Bouchard ma...@artengine.ca wrote:
 Le 2012-02-19 à 17:48:00, Mike Moser-Booth a écrit :

 On Sun, Feb 19, 2012 at 4:54 PM, Mathieu Bouchard ma...@artengine.ca
 wrote:

 Why would you change the signs of a and b but not c ?
 (Was I giving the formula relative to ax²+bx+c=0 or did I assume ax²+bx=c
 by
 accident ?)


 I think it has to do with where c is in the difference equation:
 c*y[n] = g*x[n] + a*y[n-1] + b*y[n-2]


 This equation uses a for the middle term (y[n-1]) ? Weird.

 I'd expect b to go with y[n-1], whereas a and c would go with either y[n] or
 y[n-2]...

Sorry, I kind of confused myself. I'm used to thinking of the
coefficients as a_0, a_1, etc. You're right, b should go with y[n-1],
and the one that should go with y[n] is which ever one is equal to 1,
which would be c if you think of it as a + bx + cx^2, not ax^2 + bx +
c.

To clarify, think of the z-transform of the filter as H(z) = 1/A(z),
where A(z) = 1 - 2r*cos(ω)*z^-1 + r^2*z^-2. If we decide c=1,
b=2r*cos(ω), and a=r^2, we have A(z) = c - bz^-1 + az^-2. In order to
apply the quadratic formula, those exponents need to be positive, so
you have to multiply by (z^2)/(z^2), which leaves you with H(z) = z^2
/ (cz^2 - bz +a).

That's what I meant earlier when I said a and c should be switched,
and I thought you were trying to say that you were thinking in terms
of a + bx +cx^2. ;-)


 BTW, the equations I used are things that I reconstituted from the source
 code of [biquad~] in pd/src/d_filter.c. They don't come from manuals.

You mean for [bp~]? The equation used for [biquad~] is in the
helpfile, if I'm not mistaken. But, yeah, that's what I'm going off
of, too.

btw, you wouldn't happen to know where the source for [vcf~] is, would
you? I'd like to know how that one works as well, but I can't find it.

.mmb

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Re: [PD] Resonant filter using cpole~ czero~


Le 2012-02-19 à 22:31:00, Mike Moser-Booth a écrit :


To clarify, think of the z-transform of the filter as H(z) = 1/A(z),
where A(z) = 1 - 2r*cos(ω)*z^-1 + r^2*z^-2. If we decide c=1,
b=2r*cos(ω), and a=r^2, we have A(z) = c - bz^-1 + az^-2. In order to
apply the quadratic formula, those exponents need to be positive, so
you have to multiply by (z^2)/(z^2), which leaves you with H(z) = z^2
/ (cz^2 - bz +a).


Alternately, with a backwards z transform, they're already positive, but 
then you get a backwards transfer function.



code of [biquad~] in pd/src/d_filter.c. They don't come from manuals.

You mean for [bp~]?


Yes. Dumb mistake.

btw, you wouldn't happen to know where the source for [vcf~] is, would 
you? I'd like to know how that one works as well, but I can't find it.


Curiously (but not interestingly), it's in d_osc.c instead of d_filter.c. 
This makes no sense and you shouldn't try to make sense of it. Just use 
grep or any other means to search multiple files for a word, and you'll 
find anything.


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Re: [PD] floating-point question

2012-02-19 Thread Jonathan Wilkes

- Original Message -
 From: Mathieu Bouchard ma...@artengine.ca
 To: Hans-Christoph Steiner h...@at.or.at
 Cc: pd-list@iem.at; Mirko Petrovich mirko.petrov...@gmail.com
 Sent: Sunday, February 19, 2012 10:12 PM
 Subject: Re: [PD] floating-point question

 Le 2012-02-19 à 21:52:00, Hans-Christoph Steiner a écrit :
  On Feb 17, 2012, at 4:27 PM, Mirko Petrovich wrote:
  I'm having a problem with a patch doing some very simple math. The 
 problem is that float 0.1 represents as 0.085 in some cases.
  That's a problem with floating point calculations on computers, 
 unfortuantely.  Hard to work around that.

 0.1 is usually represented as exactly
   13421773/134217728 = 0.10001490116...
   where 134217728 = pow(2,27)

 For various reasons, the numerator can be a few units up or down :
   13421772/134217728 = 0.099940395355...
   13421769/134217728 = 0.099716877937...
   13421776/134217728 = 0.100238418580...

 As you can see, 0.085 is way off. You get that kind of value with a 
 numerator around 13421571. That's 202 notches off !

 If you sum together a lot of 0.001 values to make a 0.1, the error 
 accumulates. 
 It's more accurate to count using whole numbers, and divide the whole number 
 each time.

With 64-bit floats does this problem practically go away (like getting an index 
into 
a large table)?

-Jonathan

 It's sometimes important to cut down on accuracy for the benefit of 
 efficiency, but doing audio on today's laptops, you will probably not 
 encounter them. However, tablets and phones often have slow float calculators.

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Re: [PD] floating-point question


Le 2012-02-19 à 19:42:00, Jonathan Wilkes a écrit :

With 64-bit floats does this problem practically go away (like getting 
an index into a large table)?


Depends on how practical you need it to be.

32-bit floats have 23 explicit bits of numerator, and an implicit high bit 
that is always one. This causes the numerators to always be whole numbers 
picked between 16777216 and 33554431.


64-bit floats have 52 explicit bits of numerator, and an implicit high 
bit. This means 29 doublings of precision. Every error is 536870912 times 
smaller.


For indexing into a table, it's very hard to do something wrong using 
float64. For other things, ... you can always find something more picky 
about precision of floats, but they can get really hard to find as you 
increase precision.


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Re: [PD] Resonant filter using cpole~ czero~

On Sun, Feb 19, 2012 at 10:41 PM, Mathieu Bouchard ma...@artengine.ca wrote:
 Curiously (but not interestingly), it's in d_osc.c instead of d_filter.c.
 This makes no sense and you shouldn't try to make sense of it. Just use grep
 or any other means to search multiple files for a word, and you'll find
 anything.

I assure you, I won't try to make sense of it. ;-)

Never used grep before. Thanks!

.mmb


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Mike Moser-Booth - mmoserbo...@gmail.com
Master's Student in Music Technology
Schulich School of Music, McGill University
Centre for Interdisciplinary Research in Music Media and Technology

If you think education is expensive, try ignorance -Derek Bok

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Re: [PD] minicomputers for pd + gem (linux)

2012-02-19 Thread Simon Wise


On 20/02/12 01:39, IOhannes m zmölnig wrote:

On 02/17/12 21:43, Andy Farnell wrote:

As Ubuntu continues to get heavier I heartily recommend
you look at stock Debian Squeeze with a lite window manager
if you want to use the machine for artistic work, rather than
as a general purpose desktop.



as a system administrator i think Debian squeeze is a great distribution to
run my servers.

as an artist working with multimedia content, i would rather go with something
more experimental, namely Debian wheezy (aka testing).
in reality i usually run Debian wheezy/sid (aka testing/unstable), but then
i'm doing debian development and the like (so this might be a bit too hot for
ordinary users)

wheezy usually has up-to-data packages, e.g. you get Pd-0.43.1

note however, that since testing is a moving target, you might get masses of
updates every other week.


and you can make installing and maintaining Debian wheezy/sid quite a bit 
easier by using aptosid to install it, I've found their installer and kernel 
quite good at recognising new hardware, and their manual pages very helpful in 
describing basic methods to configure Debian. The xfce version is reasonably 
minimal.


They install almost pure Debian sid, with their own kernel (but switching to the 
stock debian one, or something else, is quite possible) ... while maintaining a 
small repository of current bugfixes, keeping a few packages on hold while their 
updates are problematic, and maintaining a good warning system for updates.


http://aptosid.com/

Simon


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Re: [PD] IPA Vowel space analyzer