Re: [PD] Sibilant Detection

2011-04-10 Thread João Pais
there's a video from some presentation, where F Barnknecht presents a  
patch that does this. he should know what it's called, or maybe it already  
exists in the rjdj library.


you can also train an acoustic model and use it with a voice recognition  
tool, like julius or sphinx. i have also just found this neural network  
toolkit: http://nico.nikkostrom.com/






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[PD] Arduino, any feedback to help me choose the model?

2011-04-10 Thread Pierre Massat
Hi all,
I sorry to start yet another thread about arduino, but i'm too lazy to
search the archives and i suppose that they are upgrading the different
models frequently.
I have been using a hacked gamepad-turned-stompbox to control my live
patches, and right now i feel that it's time to build something else that
would suit my needs more closely.
I have to choose between a decent gamepad that i could hack and a arduino
board. Only, i don't know anything about arduino. So it'd be nice if a list
member could help me a little bit.
Here's what i have right now :
- 8 buttons + 1 potentiometer (in a pedal).
I'd like to have more buttons (I could have 12 using the game controller,
can i have more with a arduino board?). And it'd be nice if could have more
analog pots (i could have up to 4 using the gamepad, but they're hard to
solder...).
Also, i'd like to know the resolution of the analog inputs of a arduino
board. Is it higher than that of a gamepad? That'd be cool because i could
have a smoother control over certain values in my patch.

And finally, what do i need to connect the arduino board to Pd? Is it the
HID object or something different?

Any help welcome.

Cheers!

Pierre
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Re: [PD] Arduino, any feedback to help me choose the model?

2011-04-10 Thread Pierre Massat
Hi Pedro, thank you for this quick response.
- Yes, size does matter, because it all needs to fit in a stombox. But the
boards don't seem to be to large anyway...
- Price matters too (i'm not gonna buy the one at at 130 or something).
- What is multiplex? I need something like 12 simple switches (digital
inputs??), and maybe 3 or 4 analog inputs (i v'e read on their website that
one can have up to 6, is that right?). The only thing that really matters
concerning the analog inputs is the resolution. I just read somwhere on
their website that one board outputs integers from 0 to a little more than
1000 for it's analog inputs. If this is true, this would mean than i would
get a resolution that's a little less than 10 times higher than that of my
gamepad. But there seems to be different boards with different a difference
resolution (i'm assuming it's 8, 16 or 32 bit, am i right?). I don't know if
i can order any pre-assembled model with any board.

I also saw that the board could power LEDs. This could be very interesting,
because i'm going to assign a switch to the connection of the expression
pedal (analog) with certain parts of my patch. So for instance at startup
the pedal controls effect 1, and if i push the button i goes to effect 2,
etc., and only goes back to effect 1 after it's reached the last
pedal-controlled effect. So it'd be nice to have one LED for each effect on
my stompbox so that i know exactly which one is currently controlled by the
pedal. Do you think I could program this easily?

Pierre
2011/4/10 Pedro Lopes pedro.lo...@ist.utl.pt

 They have a lot of models (not accounting for spin-offs done by other
 folks, which some are great - long live open hardware), I think there are
 some more parameters for choosing an arduino model:
 - Does size matters?
 - Does price matters?
 - 8 buttons + 1 potentiometer (in a pedal). Extendability up to 12.
   - do you wanna multiplex[1], or simple coding?

  Maybe if you really want a lot of inputs, Duemillianuove will not suffice,
 and maybe Mega is the way to go, but its more expensive and bigger.

 [1] http://www.arduino.cc/playground/Learning/4051

 On Sun, Apr 10, 2011 at 2:14 PM, Pierre Massat pimas...@gmail.com wrote:

 Hi all,
 I sorry to start yet another thread about arduino, but i'm too lazy to
 search the archives and i suppose that they are upgrading the different
 models frequently.
 I have been using a hacked gamepad-turned-stompbox to control my live
 patches, and right now i feel that it's time to build something else that
 would suit my needs more closely.
 I have to choose between a decent gamepad that i could hack and a arduino
 board. Only, i don't know anything about arduino. So it'd be nice if a list
 member could help me a little bit.
 Here's what i have right now :
 - 8 buttons + 1 potentiometer (in a pedal).
 I'd like to have more buttons (I could have 12 using the game controller,
 can i have more with a arduino board?). And it'd be nice if could have more
 analog pots (i could have up to 4 using the gamepad, but they're hard to
 solder...).
 Also, i'd like to know the resolution of the analog inputs of a arduino
 board. Is it higher than that of a gamepad? That'd be cool because i could
 have a smoother control over certain values in my patch.

 And finally, what do i need to connect the arduino board to Pd? Is it the
 HID object or something different?

 Any help welcome.

 Cheers!

 Pierre

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 contact: pedro.lo...@ist.utl.pt
 website: http://web.ist.utl.pt/Pedro.Lopes /
 http://pedrolopesresearch.wordpress.com/ |
 http://twitter.com/plopesresearch

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Re: [PD] Arduino, any feedback to help me choose the model?

2011-04-10 Thread Charles Goyard
Hi,

Pierre Massat wrote:
 Here's what i have right now :
 - 8 buttons + 1 potentiometer (in a pedal).

on a regular arduino (25 euros) you get 12 digital inputs (buttons) out
of the box, expandable to 18 if you reuse the analog inputs. You also
get 6 analog inputs (potentiometer). Load up firmata on the board, use
pduino and you're good to go.

The analog inputs are 10 bits, so that's 0-1023. Eight times MIDI, two
times DMX.

Cheers,
Charlot

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Re: [PD] Arduino, any feedback to help me choose the model?

2011-04-10 Thread Pedro Lopes
Beware that analogue inputs (can) have noise (they fluctuate a little).
The analogRead() command converts the input voltage range, 0 to 5 volts, to
a digital value between 0 and 1023.

If you can settle with 12 inputs the Uno will suffice:
http://arduino.cc/en/Main/ArduinoBoardUno


p.s.: Multiplexing/de-multiplexing is the ability of addressing (or
conversely be addressed) of several outputs with fewer inputs. You have
chips that do that, example with 3 binary digits you can multiplex to 8
outputs, with 000 being the first, 001 the second, etc,.. up to the 111,
which would be the 8th. People also call it MUX and DEMUX.

On Sun, Apr 10, 2011 at 2:44 PM, Pierre Massat pimas...@gmail.com wrote:

 Hi Pedro, thank you for this quick response.
 - Yes, size does matter, because it all needs to fit in a stombox. But the
 boards don't seem to be to large anyway...
 - Price matters too (i'm not gonna buy the one at at 130 or something).
 - What is multiplex? I need something like 12 simple switches (digital
 inputs??), and maybe 3 or 4 analog inputs (i v'e read on their website that
 one can have up to 6, is that right?). The only thing that really matters
 concerning the analog inputs is the resolution. I just read somwhere on
 their website that one board outputs integers from 0 to a little more than
 1000 for it's analog inputs. If this is true, this would mean than i would
 get a resolution that's a little less than 10 times higher than that of my
 gamepad. But there seems to be different boards with different a difference
 resolution (i'm assuming it's 8, 16 or 32 bit, am i right?). I don't know if
 i can order any pre-assembled model with any board.

 I also saw that the board could power LEDs. This could be very interesting,
 because i'm going to assign a switch to the connection of the expression
 pedal (analog) with certain parts of my patch. So for instance at startup
 the pedal controls effect 1, and if i push the button i goes to effect 2,
 etc., and only goes back to effect 1 after it's reached the last
 pedal-controlled effect. So it'd be nice to have one LED for each effect on
 my stompbox so that i know exactly which one is currently controlled by the
 pedal. Do you think I could program this easily?

 Pierre

 2011/4/10 Pedro Lopes pedro.lo...@ist.utl.pt

 They have a lot of models (not accounting for spin-offs done by other
 folks, which some are great - long live open hardware), I think there are
 some more parameters for choosing an arduino model:
 - Does size matters?
 - Does price matters?
 - 8 buttons + 1 potentiometer (in a pedal). Extendability up to 12.
   - do you wanna multiplex[1], or simple coding?

  Maybe if you really want a lot of inputs, Duemillianuove will not
 suffice, and maybe Mega is the way to go, but its more expensive and
 bigger.

 [1] http://www.arduino.cc/playground/Learning/4051

 On Sun, Apr 10, 2011 at 2:14 PM, Pierre Massat pimas...@gmail.comwrote:

 Hi all,
 I sorry to start yet another thread about arduino, but i'm too lazy to
 search the archives and i suppose that they are upgrading the different
 models frequently.
 I have been using a hacked gamepad-turned-stompbox to control my live
 patches, and right now i feel that it's time to build something else that
 would suit my needs more closely.
 I have to choose between a decent gamepad that i could hack and a arduino
 board. Only, i don't know anything about arduino. So it'd be nice if a list
 member could help me a little bit.
 Here's what i have right now :
 - 8 buttons + 1 potentiometer (in a pedal).
 I'd like to have more buttons (I could have 12 using the game controller,
 can i have more with a arduino board?). And it'd be nice if could have more
 analog pots (i could have up to 4 using the gamepad, but they're hard to
 solder...).
 Also, i'd like to know the resolution of the analog inputs of a arduino
 board. Is it higher than that of a gamepad? That'd be cool because i could
 have a smoother control over certain values in my patch.

 And finally, what do i need to connect the arduino board to Pd? Is it the
 HID object or something different?

 Any help welcome.

 Cheers!

 Pierre

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 --
 Pedro Lopes (MSc)
 contact: pedro.lo...@ist.utl.pt
 website: http://web.ist.utl.pt/Pedro.Lopes /
 http://pedrolopesresearch.wordpress.com/ |
 http://twitter.com/plopesresearch





-- 
Pedro Lopes (MSc)
contact: pedro.lo...@ist.utl.pt
website: http://web.ist.utl.pt/Pedro.Lopes /
http://pedrolopesresearch.wordpress.com/ | http://twitter.com/plopesresearch
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Re: [PD] Graph a circle arc in an array?

2011-04-10 Thread Tyler Leavitt
I've not had any real success using the formulas with [sin] and [cos]...
maybe I'm missing something here. The only solution that I've gotten to work
is the midpoint circle algorithm with Peter's patch.

I've included a patch to show where I'm struggling... When the arc gets
drawn with bigger radiuses (and bigger arrays) there are a lot of indexes
with no value so it's constantly jumping between 0 and the correct value. Is
there a way to get pd to approximate the values in between (more or less an
average between plotted points)?

Thanks so far for all the help
Tyler

On Fri, Apr 8, 2011 at 11:12 PM, Mathieu Bouchard ma...@artengine.cawrote:

 On Fri, 8 Apr 2011, Tyler Leavitt wrote:

  I am trying to graph a section of a circle into an array. I have been
 trying to wrap my head around [sin] and [cos] but none of my configurations
 get results. If you had a circle with radius 100 with a center at (0, 0) I'm
 trying to get the upper right quadrant (positive x and positive y). The
 start point being (100,0) and the end point being (0,100).

 Any ideas on moving forward?


 use angles between 0 and pi/2 = 1.5708

 putting those into [cos] and [sin] will give you values for a circle of
 radius 1 at (0,0). For different radiuses you apply [*] after that.

 quadrants and clockwiseness depend on which axis uses [cos], which axis
 uses [sin], and which direction of each axis is positive. There are several
 standards for those things.

  ___
 | Mathieu Bouchard  tél: +1.514.383.3801  Villeray, Montréal, QC

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Re: [PD] Arduino, any feedback to help me choose the model?

2011-04-10 Thread Charles Goyard
Pierre Massat wrote:
 
 I also saw that the board could power LEDs. This could be very interesting,

Yes, but the Digital Input are shared with the digital outputs. So if
you put a button on a line, you cannot put a led too. You have up to 12
inputs/outputs IN TOTAL. You choose in your program if you want
something to be a input or an output.

Given your questions (no offense), I would go with a Mega board and not
bother with multiplexing yet. That way you get a fully assembled,
ready-to-use 50 inputs/outputs for your leds and buttons, + 16 analog
inputs, with plenty of program space.

-- 
Charles

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Re: [PD] Graph a circle arc in an array?

2011-04-10 Thread Tyler Leavitt
Ok well now I have really attached the patch...

On Sun, Apr 10, 2011 at 7:12 AM, Tyler Leavitt thecryofl...@gmail.comwrote:

 I've not had any real success using the formulas with [sin] and [cos]...
 maybe I'm missing something here. The only solution that I've gotten to work
 is the midpoint circle algorithm with Peter's patch.

 I've included a patch to show where I'm struggling... When the arc gets
 drawn with bigger radiuses (and bigger arrays) there are a lot of indexes
 with no value so it's constantly jumping between 0 and the correct value. Is
 there a way to get pd to approximate the values in between (more or less an
 average between plotted points)?

 Thanks so far for all the help
 Tyler


 On Fri, Apr 8, 2011 at 11:12 PM, Mathieu Bouchard ma...@artengine.cawrote:

 On Fri, 8 Apr 2011, Tyler Leavitt wrote:

  I am trying to graph a section of a circle into an array. I have been
 trying to wrap my head around [sin] and [cos] but none of my configurations
 get results. If you had a circle with radius 100 with a center at (0, 0) I'm
 trying to get the upper right quadrant (positive x and positive y). The
 start point being (100,0) and the end point being (0,100).

 Any ideas on moving forward?


 use angles between 0 and pi/2 = 1.5708

 putting those into [cos] and [sin] will give you values for a circle of
 radius 1 at (0,0). For different radiuses you apply [*] after that.

 quadrants and clockwiseness depend on which axis uses [cos], which axis
 uses [sin], and which direction of each axis is positive. There are several
 standards for those things.

  ___
 | Mathieu Bouchard  tél: +1.514.383.3801  Villeray, Montréal, QC



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Re: [PD] Arduino, any feedback to help me choose the model?

2011-04-10 Thread Pedro Lopes
Depends on what you want the leds to do. If you simply want them to shine
when buttons are pressed, dont waste arduino code on that. But if you want
them to blink or react to the controller state (hence code) they'll have to
be controlled via some digital pins (in output state) as Goyard stated, as
thus you are requesting more pins (maybe the mega as I say in my first
message).

Althought: multiplexing LEDs is very easy. 3 outputs can control 8 leds and
so forth. But more coding/control effort.

On Sun, Apr 10, 2011 at 3:12 PM, Charles Goyard c...@fsck.fr wrote:

 Pierre Massat wrote:
 
  I also saw that the board could power LEDs. This could be very
 interesting,

 Yes, but the Digital Input are shared with the digital outputs. So if
 you put a button on a line, you cannot put a led too. You have up to 12
 inputs/outputs IN TOTAL. You choose in your program if you want
 something to be a input or an output.

 Given your questions (no offense), I would go with a Mega board and not
 bother with multiplexing yet. That way you get a fully assembled,
 ready-to-use 50 inputs/outputs for your leds and buttons, + 16 analog
 inputs, with plenty of program space.

 --
 Charles

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contact: pedro.lo...@ist.utl.pt
website: http://web.ist.utl.pt/Pedro.Lopes /
http://pedrolopesresearch.wordpress.com/ | http://twitter.com/plopesresearch
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Re: [PD] Graph a circle arc in an array?

2011-04-10 Thread Claude Heiland-Allen

On 10/04/11 15:12, Tyler Leavitt wrote:

I've not had any real success using the formulas with [sin] and [cos]...
maybe I'm missing something here. The only solution that I've gotten to work
is the midpoint circle algorithm with Peter's patch.


A circle centered at the origin is implicitly[1] described by:

  x^2 + y^2 = r^2

Rearranging this gives:

  y = +/- sqrt(r^2 - x^2)   for -r = x = r

Hopefully this more useful for your purposes than the parametric form:

  (x,y) = (cos(t), sin(t))  for -PI = t = PI

Should be much simpler to implement than an optimized-for-integers 
Bresenham-style implementation.



Relatedly[2] I like this function too:

  f(x,t) = sqrt((t^2)+(x^2)*(2*t+1))-t  for -1 = x = 1 and 0 = t


[1] http://en.wikipedia.org/wiki/Circle#Cartesian_coordinates
[2] http://en.wikipedia.org/wiki/Conic_section


Claude
--
http://claudiusmaximus.goto10.org

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Re: [PD] Arduino, any feedback to help me choose the model?

2011-04-10 Thread Pierre Massat
Thank you both for your replies.
I don't think i will need multiplexing.
@Pedro : what do you mean by fluctuate a little? This could be anoying if
they fluctuate too much, because i wanted to use a pot to control a delay
length (you can hear gliches if the delay length jumps from one value to
another rapidly).

I think i will get the Mega. It's not too expensive (probably quite cheap
actually), and i could use it for something else later on.
On last question : is it powered by USB, or do i need a power adaptor?

Thanks again for your help!

Pierre

2011/4/10 Pedro Lopes pedro.lo...@ist.utl.pt

 Depends on what you want the leds to do. If you simply want them to shine
 when buttons are pressed, dont waste arduino code on that. But if you want
 them to blink or react to the controller state (hence code) they'll have to
 be controlled via some digital pins (in output state) as Goyard stated, as
 thus you are requesting more pins (maybe the mega as I say in my first
 message).

 Althought: multiplexing LEDs is very easy. 3 outputs can control 8 leds and
 so forth. But more coding/control effort.


 On Sun, Apr 10, 2011 at 3:12 PM, Charles Goyard c...@fsck.fr wrote:

 Pierre Massat wrote:
 
  I also saw that the board could power LEDs. This could be very
 interesting,

 Yes, but the Digital Input are shared with the digital outputs. So if
 you put a button on a line, you cannot put a led too. You have up to 12
 inputs/outputs IN TOTAL. You choose in your program if you want
 something to be a input or an output.

 Given your questions (no offense), I would go with a Mega board and not
 bother with multiplexing yet. That way you get a fully assembled,
 ready-to-use 50 inputs/outputs for your leds and buttons, + 16 analog
 inputs, with plenty of program space.

 --
 Charles

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 --
 Pedro Lopes (MSc)
 contact: pedro.lo...@ist.utl.pt
 website: http://web.ist.utl.pt/Pedro.Lopes /
 http://pedrolopesresearch.wordpress.com/ |
 http://twitter.com/plopesresearch

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Re: [PD] Arduino, any feedback to help me choose the model?

2011-04-10 Thread Pedro Lopes
You can filter out some noise if that happens. I have done several arduino
projects (namely public installations or sculptures with sensors), one thing
I learned is that you can always filter the (some) noise, by ignoring some
values and so forth.
Another fun aspect is that in public installations whenever I connected the
arduino to the AC power outlets (instead of battery) the noise was much
higher. (which makes sense, since AC powers of houses, steet, etc.. are
actually noisy (have you ever noticed that AC induces noise on most laptop
on-board sound-cards - due to ground loop and so forth) )

use i wanted to use a pot to control a delay length (you can hear gliches
if the delay length jumps from one value to another rapidly).
But don't panic about it, its workable. You can defined thresholds, and if
it varies withing a certain range you will not consider as the pot has
moved, if you do not have noise: even better. But electricity is not
perfect, components are definitely not perfect either :)

Best,
Pedro

On Sun, Apr 10, 2011 at 3:50 PM, Pierre Massat pimas...@gmail.com wrote:

 uctuate a little? This could be anoying if they fluctuate too much,
 because i wanted to use a pot to control a delay length (you can hear
 gliches if the delay length jumps from one value to another rapidly).




-- 
Pedro Lopes (MSc)
contact: pedro.lo...@ist.utl.pt
website: http://web.ist.utl.pt/Pedro.Lopes /
http://pedrolopesresearch.wordpress.com/ | http://twitter.com/plopesresearch
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Re: [PD] Arduino, any feedback to help me choose the model?

2011-04-10 Thread Martin Peach
Probably the thing will read quieter if the pots are lower resistance. 
The data sheet for the atmega microcontroller used in the arduino says 
hat the impedance of the analog source should be less than 10kOhm. Also 
putting a .1uF capacitor from the analog pin to ground will smooth out 
glitchy noise. (And averaging a few values in software helps too.)


The arduino can send its data as MIDI by using two 220 Ohm resistors 
(one from 5V to MIDI pin 4, the other from TX to MIDI pin 5, ground to 
pin 3) and a baud rate of 31250. That can eliminate noise caused by the 
USB connection, but you have to program the MIDI messages yourself 
instead of using pduino, as well as powering the arduino from a battery 
(quiet) or AC adapter (noisy).


I have built a MIDI pedal that uses an optical sensor to detect the 
pedal position. It is much quieter than a potentiometer.


Martin

On 2011-04-10 10:56, Pedro Lopes wrote:

You can filter out some noise if that happens. I have done several
arduino projects (namely public installations or sculptures with
sensors), one thing I learned is that you can always filter the (some)
noise, by ignoring some values and so forth.
Another fun aspect is that in public installations whenever I connected
the arduino to the AC power outlets (instead of battery) the noise was
much higher. (which makes sense, since AC powers of houses, steet, etc..
are actually noisy (have you ever noticed that AC induces noise on most
laptop on-board sound-cards - due to ground loop and so forth) )

 use i wanted to use a pot to control a delay length (you can hear
gliches if the delay length jumps from one value to another rapidly).
But don't panic about it, its workable. You can defined thresholds, and
if it varies withing a certain range you will not consider as the pot
has moved, if you do not have noise: even better. But electricity is not
perfect, components are definitely not perfect either :)

Best,
Pedro

On Sun, Apr 10, 2011 at 3:50 PM, Pierre Massat pimas...@gmail.com
mailto:pimas...@gmail.com wrote:

uctuate a little? This could be anoying if they fluctuate too much,
because i wanted to use a pot to control a delay length (you can
hear gliches if the delay length jumps from one value to another
rapidly).




--
Pedro Lopes (MSc)
contact: pedro.lo...@ist.utl.pt mailto:pedro.lo...@ist.utl.pt
website: http://web.ist.utl.pt/Pedro.Lopes /
http://pedrolopesresearch.wordpress.com/ | http://twitter.com/plopesresearch



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[PD] [PD-announce] deadline for the PdCon 2011 Call for Papers extended (fwd)

2011-04-10 Thread Mathieu Bouchard


reminder

-- Forwarded message --
Date: Tue, 29 Mar 2011 00:29:50 +1100
From: Max abonneme...@revolwear.com
Reply-To: pd-list@iem.at
To: pd-announce pd-annou...@iem.at
Subject: [PD-announce] deadline for the PdCon 2011 Call for Papers extended

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

The committee has decided to extend the deadline to the 10th of April 24:00h 
(UTS +2)

http://www.uni-weimar.de/medien/wiki/Pure_Data_convention_2011
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.8 (Darwin)

iEYEARECAAYFAk2QjU8ACgkQ3EB7kzgMM6J0WQCbBDsKwShypnJBSmv585TnUYnl
iAkAnRbCU269F88A8DWXVKFklT4W8l7K
=6cbD
-END PGP SIGNATURE-

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Re: [PD] Graph a circle arc in an array?

2011-04-10 Thread Mathieu Bouchard

On Sun, 10 Apr 2011, Tyler Leavitt wrote:


I've not had any real success using the formulas with [sin] and [cos]...


I don't know why, but I had assumed that you wanted to plot something 
parametrically, such as a path drawn from x(t) and y(t) functions, 
instead of a y(x) function. I was reading too fast.


For a y(x) function, sqrt(r*r-x*x) is the formula to use.

That is related to the fact that sqrt(1-x*x) = sin(acos(x)) = cos(asin(x)) 
where asin is anti-sin and acos is anti-cos.


It's also related to Pythagoras' theorem x*x + y*y = r*r which is also 
sin(t)*sin(t) + cos(t)*cos(t) = 1.


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Re: [PD] What version of GEM should I use with pd 0.43-0 vanilla

2011-04-10 Thread Hans-Christoph Steiner


On Apr 10, 2011, at 1:04 AM, Billy Stiltner wrote:


On 4/10/11, Hans-Christoph Steiner h...@at.or.at wrote:


On Apr 9, 2011, at 12:49 AM, Patrice Colet wrote:



- Billy Stiltner billy.stilt...@gmail.com a écrit :


On 4/7/11, patko colet.patr...@free.fr wrote:


you know when you add an external path it will be available from  
all

pd

versions because
it's litterally a full path name that is added by the new tcl

interface, and

because vanilla and extended shares the same config file.
that's why I use to start patches made for vanilla with a .bat

script, then

I can set exactly what I need in pd for my application.





Actually on my machine there are separate registry entries for pdx
and
pd.
both versions of vanilla I have installed share the same registry
entry.




interesting




The problem with using externals with cross platform applications

is

if you don't supply the library on all 3 platforms then there may

be

some people that cant use your patch.



That's why I think that pd-extended should add only externals

available on

all 3 platforms.
It's not really the job of patch developpers to provide cross

platform

externals and libraries but the job of the external developpers.




Is there a list of externals that work on all 3 platforms?


I don't know if there is such a list, but I'd be glad to add several
externals I've been able to compile with my machine,
and comment about how it has been done, then pdx maintainers could
had them to the build farm.
The problem is that most pdx externals building use a single
Makefile for compilation that resides in externals, so it makes  
tricky

patch submiting, because it's a lot easier to use the Makefile
provided by the dev in most cases (that's happening with
unauthorized externals for example).
I sometimes submit dll's to the list, but it's not really a good
thing.

if one is interested I've built these ones lately:

exciter
filterbank
formant
pianoroll
probalizer
samplebox
sonogram
speex
spigot~

most just need -liberty in linker flags


I would be great to have this included, please submit a patch to the
patch tracker :)

.hc




“We must become the change we want to see. - Mahatma Gandhi




If speex is a text to speech thing I would be very interested in
checking it out.




speex is a codec like vorbis or mp3.  You want [moocow/flite].

.hc




You can't steal a gift. Bird gave the world his music, and if you can  
hear it, you can have it. - Dizzy Gillespie





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Re: [PD] Graph a circle arc in an array?

2011-04-10 Thread Tyler Leavitt
Using the sqrt(r^2-x^2) formula I get the same results as with the [sin],
[cos]. Maybe I'm just implementing it wrong, but I can't figure out why it's
not plotting the correct y values...

Here's the patch I sent before with my implementation of the sqrt(r^2 - x^2)

On Sun, Apr 10, 2011 at 8:52 AM, Mathieu Bouchard ma...@artengine.cawrote:

 On Sun, 10 Apr 2011, Tyler Leavitt wrote:

  I've not had any real success using the formulas with [sin] and [cos]...


 I don't know why, but I had assumed that you wanted to plot something
 parametrically, such as a path drawn from x(t) and y(t) functions, instead
 of a y(x) function. I was reading too fast.

 For a y(x) function, sqrt(r*r-x*x) is the formula to use.

 That is related to the fact that sqrt(1-x*x) = sin(acos(x)) = cos(asin(x))
 where asin is anti-sin and acos is anti-cos.

 It's also related to Pythagoras' theorem x*x + y*y = r*r which is also
 sin(t)*sin(t) + cos(t)*cos(t) = 1.


  ___
 | Mathieu Bouchard  tél: +1.514.383.3801  Villeray, Montréal, QC

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Re: [PD] Graph a circle arc in an array?

2011-04-10 Thread Mathieu Bouchard

On Sun, 10 Apr 2011, Tyler Leavitt wrote:

Using the sqrt(r^2-x^2) formula I get the same results as with the 
[sin], [cos]. Maybe I'm just implementing it wrong, but I can't figure 
out why it's not plotting the correct y values... Here's the patch I 
sent before with my implementation of the sqrt(r^2 - x^2)


The x is supposed to be the right-inlet of [tabwrite], not the left-inlet. 
Otherwise you will write many values in the same location, while skipping 
many other locations.


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Re: [PD] Graph a circle arc in an array?

2011-04-10 Thread Tyler Leavitt
Heh... wow. Thanks for pointing out my negligence and all the help up to
this point =)

Tyler

On Sun, Apr 10, 2011 at 9:59 AM, Mathieu Bouchard ma...@artengine.cawrote:

 On Sun, 10 Apr 2011, Tyler Leavitt wrote:

  Using the sqrt(r^2-x^2) formula I get the same results as with the [sin],
 [cos]. Maybe I'm just implementing it wrong, but I can't figure out why it's
 not plotting the correct y values... Here's the patch I sent before with my
 implementation of the sqrt(r^2 - x^2)


 The x is supposed to be the right-inlet of [tabwrite], not the left-inlet.
 Otherwise you will write many values in the same location, while skipping
 many other locations.


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Re: [PD] What version of GEM should I use with pd 0.43-0 vanilla

2011-04-10 Thread Patrice Colet

- Hans-Christoph Steiner h...@at.or.at a écrit :

 On Apr 9, 2011, at 12:49 AM, Patrice Colet wrote:
  if one is interested I've built these ones lately:
 
  exciter
  filterbank
  formant
  pianoroll
  probalizer
  samplebox
  sonogram
  speex
  spigot~
 
  most just need -liberty in linker flags
 
 I would be great to have this included, please submit a patch to the 
 
 patch tracker :)
 

uh that won't be a little patch ;o)

playlist is also built but there are a lot of lines of code added because 
several functions doesn't exist on windows,
I'm wondering why the method isn't as same as in ggee/getdir to get current 
dir, that would be a simple cross-platform method,
following wildcards in externals/Makefile we need to have it compiled for 
getting pianoroll and probalizer to work.

lame DLL's doesn't seem to be provided by pdx installer, so I had to compile it 
for having the mp3* externals working,
I guess that anyone that doesn't have access to a compiler couldn't run those 
pdx externals, 



-- 
Patrice Colet 

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[PD] Pure Data Workshop in Los Angeles , 2011-04-29

2011-04-10 Thread Theron Trowbridge
I am happy to announce another workshop for the pd-LAunch week (4/25-5/1) in
Los Angeles.  On Friday, April 29th at 7:00 PM, Chris McCormick will be
teaching a workshop at CRASHspace on using Pd as an embedded audio engine
for other applications.

Pd As Your Embedded Audio Engine

“Pd as your embedded audio engine” will teach all about embedding libpd as
the sound engine for your app, whether its iPhone, Android, Java,
OpenFrameworks, Processing, etc. This workshop provides a broad spectrum of
different ways of connecting Pd to other things. Having hardware isn’t a
requirement either. The workshop will cover ways of interfacing with Pd from
computer to computer. Bring your laptop and devices that you want to install
libpd on (Android, iPhone, etc.)

HTML and/or programming knowledge will certainly help. The aim of this
workshop is to give a broad spectrum of different ways to interface to Pd.
So it will be dipping very slightly into Python, C, Java, Javascript, but
this is usually “glue code” and all of the code will be fully provided. You
do not need to be proficient in these languages at all, the workshop will
also cover methods that also just use Pd with no code at all.
Here is an outline of topics:

* Introduction
* History of Pd as an engine
* Ways to interface with a Pd process:
  * Midi  OSC
  * FUDI
  * stdout
  * Python + sockets
  * pdsend/pdreceive
* Parsing patches in three languages
* libpd on Android and iOS
* PdWebKitDroid
* RjDj and ScenePlayer
* WebPd

Students will need a laptop and should have Pd-extended installed and
working (download for free from http://puredata.info) – it is available for
Linux, Mac OS X, and Windows.

Space is limited.  Cost is $100.  Sign up at the CRASHspace store:
http://store.crashspacela.com/index.php?main_page=product_infocPath=2products_id=30

CRASHspace is located at 10526 Venice Blvd, Culver City CA 90232.

-Theron
^
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Re: [PD] [PD-announce] deadline for the PdCon 2011 Call for Papers extended (fwd)

2011-04-10 Thread Mathieu Bouchard

On Sun, 10 Apr 2011, Mathieu Bouchard wrote:

The committee has decided to extend the deadline to the 10th of April 
24:00h (UTS +2)


reminder


BTW, I submitted at that exact time, and my submission number is 39. This 
should give you an idea of how many people submitted, though this may 
count some cancelled submissions, multiple submissions by same people, and 
it doesn't count anyone who submit after 24h00.


(I'm only talking about papers ; other submissions are handled separately)

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Re: [PD] [PD-announce] deadline for the PdCon 2011 Call for Papers extended (fwd)

2011-04-10 Thread Pedro Lopes
Any thoughts or numbers regarding this value vs. the previous pdcons?

It doesn't surprise me, since it is a rather small conference - it is very
specific, which is what motivates me towards it, its a place
to definitely get in touch with pd development and research -  when you
compare it to the major conferences, such as CHI,  INTERACT (huge
conferences), or more sound related: NIME, SMC (medium/big-sized) and so
forth.

I think I was submission 279 on NIME (long papers track) and I registered a
few days before the end. Just to give an example.

Best,
Pedro

On Sun, Apr 10, 2011 at 11:39 PM, Mathieu Bouchard ma...@artengine.cawrote:

 On Sun, 10 Apr 2011, Mathieu Bouchard wrote:

  The committee has decided to extend the deadline to the 10th of April
 24:00h (UTS +2)


 reminder


 BTW, I submitted at that exact time, and my submission number is 39. This
 should give you an idea of how many people submitted, though this may count
 some cancelled submissions, multiple submissions by same people, and it
 doesn't count anyone who submit after 24h00.

 (I'm only talking about papers ; other submissions are handled separately)

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-- 
Pedro Lopes (MSc)
contact: pedro.lo...@ist.utl.pt
website: http://web.ist.utl.pt/Pedro.Lopes /
http://pedrolopesresearch.wordpress.com/ | http://twitter.com/plopesresearch
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Re: [PD] What version of GEM should I use with pd 0.43-0 vanilla

2011-04-10 Thread Hans-Christoph Steiner


On Apr 10, 2011, at 2:00 PM, Patrice Colet wrote:



- Hans-Christoph Steiner h...@at.or.at a écrit :


On Apr 9, 2011, at 12:49 AM, Patrice Colet wrote:

if one is interested I've built these ones lately:

exciter
filterbank
formant
pianoroll
probalizer
samplebox
sonogram
speex
spigot~

most just need -liberty in linker flags


I would be great to have this included, please submit a patch to the

patch tracker :)



uh that won't be a little patch ;o)

playlist is also built but there are a lot of lines of code added  
because several functions doesn't exist on windows,
I'm wondering why the method isn't as same as in ggee/getdir to get  
current dir, that would be a simple cross-platform method,
following wildcards in externals/Makefile we need to have it  
compiled for getting pianoroll and probalizer to work.


Looks like you got it working anyhow :)  I don't quite understand what  
you mean about the getdir code, can you explain more?


lame DLL's doesn't seem to be provided by pdx installer, so I had to  
compile it for having the mp3* externals working,
I guess that anyone that doesn't have access to a compiler couldn't  
run those pdx externals,



The problem with LAME is that it covers algorithms that are patented  
in a number of countries, so its not easily distributable.  That's why  
LAME is not in Debian, for example, and distributed as source code  
only in other distros.


.hc




News is what people want to keep hidden and everything else is  
publicity.  - Bill Moyers




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[PD] [playlist] for win32 [was:Re: What version of GEM should I use with pd 0.43-0 vanilla]

2011-04-10 Thread Patrice Colet

- Hans-Christoph Steiner h...@at.or.at a écrit :

 On Apr 10, 2011, at 2:00 PM, Patrice Colet wrote:
 

  I'm wondering why the method isn't as same as in ggee/getdir to get 
 
  current dir, that would be a simple cross-platform method,
  following wildcards in externals/Makefile we need to have it  
  compiled for getting pianoroll and probalizer to work.
 
 Looks like you got it working anyhow :)  I don't quite understand what
  
 you mean about the getdir code, can you explain more?
 

 The method in playlist.c call a function only available in unix systems while 
in getdir it uses canvas_getdir(),
available on any platform, it was simplier for me to just replace getenv( PWD 
) by _getcwd (path, _MAX_DIR) .

For the information scandir() code for mingw has been taken from another 
mailing list:

http://www.mail-archive.com/developer@arabeyes.org/msg03153.html


  lame DLL's doesn't seem to be provided by pdx installer, so I had to
  
  compile it for having the mp3* externals working,
  I guess that anyone that doesn't have access to a compiler couldn't 
 
  run those pdx externals,
 
 
 The problem with LAME is that it covers algorithms that are patented 
 
 in a number of countries, so its not easily distributable.  That's why
  
 LAME is not in Debian, for example, and distributed as source code  
 only in other distros.
 
 .hc
 


 Okay I see, anyway I can't get the mp3 streaming externals working correctly.
 
 
 
 News is what people want to keep hidden and everything else is  
 publicity.  - Bill Moyers

-- 
Patrice Colet 

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