Re: [PD] Pduino and shift registers

[school shoes]

Hey, no worries. The only indication to me was the very brief reference to it 
in the forum post i linked to, and the line in the firmata.h file:

#define SHIFT_DATA  0x75 // a bitstream to/from a shift register


So thought I’d ask on the off chance it was an undocumented feature . . .

I'm sure it is possible to hack together the shiftOut() function in pd, though 
as I’m not a programmer how to do that is not immediately obvious to me,* so 
guess i was hoping that there was a ‘proper’ or more efficient way to do it via 
pduino.

As you suggest it’s probably better to do the shift register stuff directly on 
the arduino, but i’m already in quite deep with pduino for this particular 
project. .

anyway, thanks for your replies !

*source code for shiftOut():

void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val)
{
uint8_t i;

for (i = 0; i < 8; i++)  {
 if (bitOrder == LSBFIRST)
  digitalWrite(dataPin, !!(val & (1 << i)));
 else
  digitalWrite(dataPin, !!(val & (1 << (7 - i;

 digitalWrite(clockPin, HIGH);
 digitalWrite(clockPin, LOW);
}
}



From: Pd-list  on behalf of Roman Haefeli 

Sent: Monday, 1 July 2019 3:21 AM
To: pd-list@lists.iem.at
Subject: Re: [PD] Pduino and shift registers

On Sat, 2019-06-29 at 14:23 +0200, Simon Iten wrote:
> i think you should be able to control a shift register
>  from pd within the existing architecture.
>
> if you can access those 3 pins from pd just send them the HIGHs and
> LOWs you would send in arduino code…

Theoretically yes, but it's probably slow and unreliable. If you could
just send the desired bit states from Pd and let the Arduino deal with
timing and ordering, data transmission would have less overhead would
likely be more reliable.

One could still write a little code snippet for the Arduino and an
complementary abstraction based on comport to do something like this.
Right now, I would not know how to make that part of Firmata and
pduino.

Roman
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Re: [PD] Pduino and shift registers

[school shoes]

Hi Roman,
thanks very much for your work on this, i use pduino quite a lot definitely 
deserves love !
Shift register ics like 74HC59 add extra outputs to arduino but only need 3 
pins to control (data, clock, latch) .
Looks like arduino does this with a shiftOut() function ( 
https://www.arduino.cc/en/Tutorial/ShiftOut ) .
On the PD side i guess I'm just looking to somehow communicate with the shift 
register ic and turn its pins HIGH and LOW like the normal I/O pins.
Tbh I haven’t used shift registers much myself yet but just looking into them 
as i suddenly need a considerable amount of outputs, so was wondering if there 
was a pduino equivalent.

thanks !

From: Pd-list  on behalf of Roman Haefeli 

Sent: Saturday, 29 June 2019 8:23 AM
To: pd-list@lists.iem.at
Subject: Re: [PD] Pduino and shift registers

On Fri, 2019-06-28 at 15:38 +0000, school shoes wrote:
> Hi there,
> just wondering if pduino currently has support for shift registers?
> a quick google came up with this post from 2009:
> https://forum.arduino.cc/index.php?topic=6910.0
> that seems to suggest that support is coming , but can't seem to find
> much mention of it since.

It seems nobody else is taking care of the pduino library and since I
seem to be the last person having worked on it, I feel a bit
responsible. I'm not using it often these days, but I find it deserves
some love.

Maybe adding support for shift registers is doable, but I don't quite
understand what that exactly means. Can you describe in few words what
you would like to send from Pd and what the output of the Arduino board
should look like?

Roman
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[PD] Pduino and shift registers

[school shoes]

Hi there,
just wondering if pduino currently has support for shift registers?
a quick google came up with this post from 2009: 
https://forum.arduino.cc/index.php?topic=6910.0
that seems to suggest that support is coming , but can't seem to find much 
mention of it since.
thanks !
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Re: [PD] GOP Errors

[school shoes]

thanks for your reply, unfortunately I don’t have a patch that triggers the 
error cue, (i’ve been trying to make it happen for the last 20 mins), it seems 
to just happen randomly every now and then, though i feel like it has something 
to do with closing gop windows.  I was just wondering if anyone was familiar 
with the error or able to interpret it and tell me what i'm doing wrong.

cheers

From: Christof Ressi 
Sent: Saturday, 12 January 2019 3:26 AM
To: school shoes
Cc: pd-l...@mail.iem.at
Subject: Aw: [PD] GOP Errors

can you provide an example patch which triggers the error?


Gesendet: Freitag, 11. Januar 2019 um 08:22 Uhr
Von: "school shoes" 
An: "pd-l...@mail.iem.at" 
Betreff: [PD] GOP Errors

Hi,

When I use GOPs I occasionally get red errors like:


no such object
(Tcl) INVALID COMMAND NAME: invalid command name ".x10c074e20.c"
while executing
"$tkcanvas itemconfig $tag -text [string range $text 0 end-1]"
(procedure "pdtk_text_set" line 2)
invoked from within
"pdtk_text_set .x10c074e20.c .x10c074e20.t10c34e5c0 {chord: 0.3208 0.3036 
0.3725 0.3267 0.3642 0.3346 0.3815
0.3496 0.392 0.3679 0.376 0.3281 0.3206 0"
("uplevel" body line 1)
invoked from within
"uplevel #0 $docmds"(Tcl) INVALID COMMAND NAME: invalid command name 
".x10c074e20.c"
while executing
"$tkcanvas itemconfig $tag -text [string range $text 0 end-1]"
(procedure "pdtk_text_set" line 2)


etc.

Seems from a quick search other people have experienced something similar, 
though it’s still not clear to me what the error means -  am I doing something 
wrong or is it a bug?

In the past it’s generally benign and pd keeps working but the last few times 
it’s happened (using 0.49-1) when I get these errors the gui freezes (but the 
sound keeps working), which is making me a little nervous to use GOPs for 
performances
Not sure if it’s related but also on 0.49.1 I’ve noticed occasionally when i go 
to close a patch's main window I get a stream of errors:

.x10c430f60: no such object
.x10c430f60: no such object
.x10c430f60: no such object
.x10c430f60: no such object
.x10c430f60: no such object

etc


the visible GOPs disappear but the white canvas remains and PD freezes and I 
have to force quit. I can’t seem to recreate the error on cue, but it has 
happened quite a few times.

I’m using pd 0.49.1 on macOS sierra 10.12.6

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[PD] GOP Errors

[school shoes]

Hi,

When I use GOPs I occasionally get red errors like:


no such object
(Tcl) INVALID COMMAND NAME: invalid command name ".x10c074e20.c"
while executing
"$tkcanvas itemconfig $tag -text [string range $text 0 end-1]"
(procedure "pdtk_text_set" line 2)
invoked from within
"pdtk_text_set .x10c074e20.c .x10c074e20.t10c34e5c0 {chord: 0.3208 0.3036 
0.3725 0.3267 0.3642 0.3346 0.3815
0.3496 0.392 0.3679 0.376 0.3281 0.3206 0"
("uplevel" body line 1)
invoked from within
"uplevel #0 $docmds"(Tcl) INVALID COMMAND NAME: invalid command name 
".x10c074e20.c"
while executing
"$tkcanvas itemconfig $tag -text [string range $text 0 end-1]"
(procedure "pdtk_text_set" line 2)


etc.

Seems from a quick search other people have experienced something similar, 
though it’s still not clear to me what the error means -  am I doing something 
wrong or is it a bug?

In the past it’s generally benign and pd keeps working but the last few times 
it’s happened (using 0.49-1) when I get these errors the gui freezes (but the 
sound keeps working), which is making me a little nervous to use GOPs for 
performances

Not sure if it’s related but also on 0.49.1 I’ve noticed occasionally when i go 
to close a patch's main window I get a stream of errors:

.x10c430f60: no such object
.x10c430f60: no such object
.x10c430f60: no such object
.x10c430f60: no such object
.x10c430f60: no such object

etc


the visible GOPs disappear but the white canvas remains and PD freezes and I 
have to force quit. I can’t seem to recreate the error on cue, but it has 
happened quite a few times.

I’m using pd 0.49.1 on macOS sierra 10.12.6

thanks for any tips in advance

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Re: [PD] purr data window display

[school shoes]

OK great that seems to have done the trick!  Does that mean xsample is not 
compatible with Purr Data? The xsample objects do work once the patch loads up. 
 Thanks for your help


From: Jonathan Wilkes 
Sent: Wednesday, 15 November 2017 5:35:21 PM
To: school shoes; pd-list@lists.iem.at
Subject: Re: [PD] purr data window display

Try removing the xsample libraries from your startup libs and see if you still 
get the bug.

-Jonathan



From: school shoes 
To: "pd-list@lists.iem.at" ; Jonathan Wilkes 

Sent: Wednesday, November 15, 2017 12:39 AM
Subject: Re: [PD] purr data window display

thanks for your reply !


> What is printed to the main Pd Window when you start Purr Data?


Welcome to Purr Data
GUI is starting Pd...
GUI listening on port 5400 on host 127.0.0.1
gui_path is /Applications/Pd-l2ork.app/Contents/Resources/app.nw
binary is /Applications/Pd-l2ork.app/Contents/Resources/app.nw/bin/pd-l2ork
Pd started.
incoming connection to GUI
canvasinfo: v0.1
stable canvasinfo methods: args dir dirty editmode vis
pdinfo: v.0.1
stable pdinfo methods: dir dsp version
classinfo: v.0.1
stable classinfo methods: size
objectinfo: v.0.1
stable objectinfo methods: class
[import] $Revision: 1.2 $
[import] is still in development, the interface could change!
compiled against Pd-l2ork version 2.4.3 (20171112-rev.4bd1b3a)
working directory is /Users/schoolshoes
mrpeach: can't load library
---
xsample objects, version 0.3.2pre

  xrecord~, xplay~, xgroove~
  (C)2001-2014 Thomas Grill
---


And when I right-click and "inspect background page" I get:

> a) right after starting Purr Data

nothing

> b) after trying to open a new patch for the first time

Uncaught SyntaxError: missing ) after argument list
at perfect_parser 
(/Applications/Pd-l2ork.app/Contents/Resources/app.nw/pdgui.js:1696)
at Socket. 
(/Applications/Pd-l2ork.app/Contents/Resources/app.nw/pdgui.js:1714)
at emitOne (events.js:96)
at Socket.emit (events.js:191)
at readableAddChunk (_stream_readable.js:178)
at Socket.Readable.push (_stream_readable.js:136)
at TCP.onread (net.js:560)

perfect_parser@
/Applications/Pd-l2ork.app/Contents/Resources/app.nw/pdgui.js:1696
(anonymous)@
/Applications/Pd-l2ork.app/Contents/Resources/app.nw/pdgui.js:1714
emitOne@events.js:96
emit@events.js:191
readableAddChunk@_stream_readable.js:178
Readable.push@_stream_readable.js:136
onread@net.js:560

> c) after trying to open a new patch the second time


canvas mapping x100437130... 
/Applications/Pd-l2ork.app/Contents/Resources/app.nw/pdgui.js:1459


cheers

From: Jonathan Wilkes 
Sent: Wednesday, 15 November 2017 11:18:48 AM
To: school shoes; pd-list@lists.iem.at
Subject: Re: [PD] purr data window display

> Hi there ,

> I've noticed some strange behavior using Purr Data on macOs Sierra 10.12.5  
> (tested on purr data 2.4.2 and 2.4.3).

> After I first open the application, whatever I try to do first doesn’t seem 
> to display.

I can't seem to reproduce this.

What is printed to the main Pd Window when you start Purr Data?

Also, try right-clicking on the main Pd Window (or whatever the Mac equivalent 
is for right-clicking)
and choose "Inspect Background Page". Then click the "Console" tab and tell me 
if you get any
errors there:

a) right after starting Purr Data
b) after trying to open a new patch for the first time
c) after trying to open a new patch the second time

-Jonathan


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Re: [PD] purr data window display

[school shoes]

thanks for your reply !


> What is printed to the main Pd Window when you start Purr Data?


Welcome to Purr Data
GUI is starting Pd...
GUI listening on port 5400 on host 127.0.0.1
gui_path is /Applications/Pd-l2ork.app/Contents/Resources/app.nw
binary is /Applications/Pd-l2ork.app/Contents/Resources/app.nw/bin/pd-l2ork
Pd started.
incoming connection to GUI
canvasinfo: v0.1
stable canvasinfo methods: args dir dirty editmode vis
pdinfo: v.0.1
stable pdinfo methods: dir dsp version
classinfo: v.0.1
stable classinfo methods: size
objectinfo: v.0.1
stable objectinfo methods: class
[import] $Revision: 1.2 $
[import] is still in development, the interface could change!
compiled against Pd-l2ork version 2.4.3 (20171112-rev.4bd1b3a)
working directory is /Users/schoolshoes
mrpeach: can't load library
---
xsample objects, version 0.3.2pre

  xrecord~, xplay~, xgroove~
  (C)2001-2014 Thomas Grill
---


And when I right-click and "inspect background page" I get:

> a) right after starting Purr Data

nothing

> b) after trying to open a new patch for the first time

Uncaught SyntaxError: missing ) after argument list
at perfect_parser 
(/Applications/Pd-l2ork.app/Contents/Resources/app.nw/pdgui.js:1696)
at Socket. 
(/Applications/Pd-l2ork.app/Contents/Resources/app.nw/pdgui.js:1714)
at emitOne (events.js:96)
at Socket.emit (events.js:191)
at readableAddChunk (_stream_readable.js:178)
at Socket.Readable.push (_stream_readable.js:136)
at TCP.onread (net.js:560)

perfect_parser@
/Applications/Pd-l2ork.app/Contents/Resources/app.nw/pdgui.js:1696
(anonymous)@
/Applications/Pd-l2ork.app/Contents/Resources/app.nw/pdgui.js:1714
emitOne@events.js:96
emit@events.js:191
readableAddChunk@_stream_readable.js:178
Readable.push@_stream_readable.js:136
onread@net.js:560

> c) after trying to open a new patch the second time


canvas mapping x100437130... 
/Applications/Pd-l2ork.app/Contents/Resources/app.nw/pdgui.js:1459



cheers


From: Jonathan Wilkes 
Sent: Wednesday, 15 November 2017 11:18:48 AM
To: school shoes; pd-list@lists.iem.at
Subject: Re: [PD] purr data window display

> Hi there ,

> I've noticed some strange behavior using Purr Data on macOs Sierra 10.12.5  
> (tested on purr data 2.4.2 and 2.4.3).

> After I first open the application, whatever I try to do first doesn’t seem 
> to display.

I can't seem to reproduce this.

What is printed to the main Pd Window when you start Purr Data?

Also, try right-clicking on the main Pd Window (or whatever the Mac equivalent 
is for right-clicking)
and choose "Inspect Background Page". Then click the "Console" tab and tell me 
if you get any
errors there:

a) right after starting Purr Data
b) after trying to open a new patch for the first time
c) after trying to open a new patch the second time

-Jonathan
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[PD] purr data window display

[school shoes]

Hi there ,

I've noticed some strange behavior using Purr Data on macOs Sierra 10.12.5  
(tested on purr data 2.4.2 and 2.4.3).

After I first open the application, whatever I try to do first doesn’t seem to 
display.

For example, if I press command + n , nothing happens. But if i press it again, 
a new window appears. The window is titled ‘Untitled-2’ so I assume the first 
attempt registered and ’Untitled-1’ exists somewhere but is not visible

Or if after first opening the application I go Help -> about pd-l2ork, nothing 
happens but if I open it again i get the error ‘template pd-cat: warning: 
already exists’

so it seems like it is opening in the background somewhere but the window is 
not displaying?

This only happens if it's the very first thing I do. Even if I toggle the dsp a 
few times before I try to open a file then I don’t experience this problem.

Is anyone else experiencing this ?

cheers



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Re: [PD] [PD-announce] else 1.0 beta 5 released

[school shoes]

thanks for this it's a great library.

I've noticed what I think is a bug in the latest release. It says in the help 
file for trigger~ that a bang will send an impulse but I get : trigger~:no 
method for 'bang' ". However sending a bang seems to work as expected in older 
releases of else. Tried on macos10.12 and ubuntu studio 16.04 . cheers



From: Pd-list  on behalf of Alexandre Torres 
Porres 
Sent: Monday, 30 October 2017 8:39:23 AM
To: pd-annou...@lists.iem.at
Subject: [PD] [PD-announce] else 1.0 beta 5 released

I did 4 updates this month because of a course I'm teaching, which ends now, so 
I'm gonna drop this for a while, sorry for polluting with so many updates. 
Anyway, it's up on deken already, and here are some details: 
https://github.com/porres/pd-else/releases

cheers
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[PD] purr data duplicate undo

[school shoes]

Hey -

every now and then using purr data i find that i have inadvertently made 
duplicate objects/msgs etc that are directly in front of each other.

I've finally figured out that this is happening with the following sequence:  
cmd +d , cmd+z

in pd vanilla the same combination simply undoes the duplicate command, which 
is probably the expected behavior. But in purr data it doesn't delete the 
duplicate, but moves it directly in front of the original.

Not sure if this is a bug, but thought i’d bring it up as a couple of times has 
led to some time consuming trouble shooting, because duplicate objects sitting 
directly on top of the original can look like they are connected to things when 
they are not.

using purr data 2.3.0 on macos sierra

cheers,
ss

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Re: [PD] vline~ helpfile

[school shoes]

Hi
I have also been a little confused by this in the past but found the 
explanation on the floss page helpful :

http://en.flossmanuals.net/pure-data/audio-tutorials/envelope-generator/

I also only seem to get one ramp if I click the [1 1000 0, 0 0 1000, 1 1000 
1000( message in the help file

but works if I  add “ 0 0 , “ to the start of the message

s s



From: Pd-list  on behalf of hans w. koch 

Sent: Sunday, 24 July 2016 9:53:19 AM
To: pd-list@lists.iem.at
Subject: [PD] vline~ helpfile

hello,

maybe i am doing something stupid, but i don´t get the vline~ synthax:
the helpfile states: "Any number of future ramps may be scheduled and vline~ 
will remember them and execute them in order.
They must be specified in increasing order of initial delay however, since a 
segment cancels all planned segments at any future time.“

then there is an example with a message box containing: 1 1000, 0 0 1000, 1 
1000 1000
but it doesn´t do more than ramp from 0-1 in a little more than a second.
isn´t it supposed to ramp up then down to 0 in another second and then up again?

(using pd47-1-64 bits on osx 11.6. btw)

thanks for any pointers

hans
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[PD] raspberry pi, pd l2ork + i2c

[school shoes]

Hello,

Just wondering if someone might be able to suggest the easiest way to send i2c 
messages via pd? I've just bought a raspberry pi 3 and have been playing around 
with pd l2ork and the gpio object which works really well straight out of the 
box, but am unsure about how to communicate with i2c interfaces (in this case a 
servo pi hat).

many thanks in advance -

s s
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Re: [PD] Lanbox

[school shoes]

great, sorry i somehow missed your reply on the forum - thanks very much for 
sharing your patch!

i had a go and some lights in the theatre are definitely coming up, which is 
exciting. however i’m still unsure about how to address specific channels.

in your dec2hex abstraction i noticed that the 4th last number in the list 
changes which light comes up, though the actual number is not the channel 
number (as i know that i have lights on channels 1 - 5 but using those numbers 
doesn’t bring any lights up). sorry if i am missing something obvious with the 
number conversions, this is all quite new. 

many thanks, 

s

Date: Fri, 4 Dec 2015 15:43:56 +0200
Subject: Re: [PD] Lanbox
From: adr...@gmail.com
CC: schoolsh...@outlook.com; pd-list@lists.iem.at

Maybe I'm that someone from the old forum post. I use the lanbox with 
[comport], not via UDP. I copied the messages output by the [lanbox] external 
in Max, which used hexadecimal number (if I remember correctly) where one of 
them was the channel and another the value (among other values).
The patch I sent you on the forum did exactly that.

On Fri, Dec 4, 2015 at 3:25 PM, Martin Peach  wrote:
On Fri, Dec 4, 2015 at 2:22 AM, school shoes  wrote:



Hello, 

I was wondering if anyone on the list has successfully used pd with a Lanbox 
dmx controller and is able to tell me how i should format the messages to 
communicate via mrpeach/udpsend? 

It works with Max Msp using the [lcudp-pack] object (from the lanbox website) 
which packs data so that it can be sent as a LanBox UDP packet by the udpsend 
object.

as suggested by someone in an old post on the pd forum, i have tried in Max to 
print the msgs that come out of the [lcudp-pack] object - i get “FullPacket 260 
203381508” . however this doesn’t seem to change no matter what the input (even 
though the dmx controlled lights are fading in and out) so not quite sure how 
to decipher that.

Try sending it to a [udpreceive] in a Pd patch and see what comes out?

Martin




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[PD] Lanbox

[school shoes]

Hello, 

I was wondering if anyone on the list has successfully used pd with a Lanbox 
dmx controller and is able to tell me how i should format the messages to 
communicate via mrpeach/udpsend? 

It works with Max Msp using the [lcudp-pack] object (from the lanbox website) 
which packs data so that it can be sent as a LanBox UDP packet by the udpsend 
object.

as suggested by someone in an old post on the pd forum, i have tried in Max to 
print the msgs that come out of the [lcudp-pack] object - i get “FullPacket 260 
203381508” . however this doesn’t seem to change no matter what the input (even 
though the dmx controlled lights are fading in and out) so not quite sure how 
to decipher that.

any help greatly appreciated

thanks!

s

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Re: [PD] unauthorized in vanilla

[school shoes]

great, got it working. thanks very much for explaining.  s

To: pd-list@lists.iem.at
From: zmoel...@iem.at
Date: Tue, 1 Dec 2015 10:13:06 +0100
Subject: Re: [PD] unauthorized in vanilla

On 2015-12-01 02:16, William Huston wrote:
> Check the help page on the [import] command.
 
or even better, read the error message and try to understand it :-)
 
>> /Users/schoolshoes/Library/Pd/unauthorized/grid.pd_darwin:
>> dlopen(/Users/schoolshoes/Library/Pd/unauthorized/grid.pd_darwin, 10):
>> Library not loaded: @executable_path/../../lib/libspeex.1.dylib
>>   Referenced from:
>> /Users/schoolshoes/Library/Pd/unauthorized/grid.pd_darwin
>>   Reason: image not found
 
so it says that it cannot find an "image" for a file
@executable_path/../../lib/libspeex.1.dylib referenced from grid.pd_darwin
 
 
with a bit of fantasy and/or computing experience, this translates to:
"the grid-object depends on the libspeex library but you don't have that
installed. you cannot load [grid] without a libspeex.dylib in the proper
place."
 
the solution is to locate the file libspeex.1.dylib in your
Pd-extended.app (it will be somewhere in Pd-extended.app/Contents/lib/
and place it into sthg like Pd-vanilla.app/Contents/lib/.
 
the proper solution for a distributable "unauthorized" package would be
to make grid.pd_darwin look for the libspeex.dylib besides itself
(rather than besides the Pd-executable).
 
fgmasdr
IOhannes
 

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[PD] unauthorized in vanilla

[school shoes]

hello, 

I am using pd vanilla 0.46.7 on osx yosemite 

i need to use a few objects from extended, so have simply copied the library 
folders i need from extended into Library/Pd

then in vanilla  [declare cyclone], or [cyclone/zl] - which works fine

However i would like to use [grid] from unauthorized library. when i follow the 
same procedure  

 [declare unauthorized] and [grid] , or [unauthorized/grid] 

i get

/Users/schoolshoes/Library/Pd/unauthorized/grid.pd_darwin: 
dlopen(/Users/schoolshoes/Library/Pd/unauthorized/grid.pd_darwin, 10): Library 
not loaded: @executable_path/../../lib/libspeex.1.dylib
  Referenced from: /Users/schoolshoes/Library/Pd/unauthorized/grid.pd_darwin
  Reason: image not found

(i installed the deken plugin to try that way but only windows and linux 
versions seem to be available for unauthorized)

how can I use unauthorized and [grid] in vanilla?

many thanks

s
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Re: [PD] perceived loudness

[school shoes]

great thanks for the leads

To: pd-list@lists.iem.at
From: zmoel...@iem.at
Date: Tue, 25 Aug 2015 10:57:50 +0200
Subject: Re: [PD] perceived loudness

On 08/24/2015 05:29 PM, school shoes wrote:
> hello
> I understand that our ears perceive midrange sounds as louder than very low 
> or very high ones. I am wondering if there is some sort of simple method or 
> formula or object that compensates for the perceived difference in volume, so 
> that if i have say a patch randomly generating osc~ frequencies between 50 
> and 15000 hz, the volume [*~] of each frequency can be adjusted so that they 
> all have the same overall presence?
> thanks in advance. 
 
there's [mtx_phon_curves] (in iemmatrix) which uses an approximation
formula for the phon curves.
being a matrix object¹, it takes a vector of sinusoidal components and
outputs the relative gains.
 
gfmrsa
IOhannes
 
¹ i have no clue why this is in the iemmatrix toolbox, and not a general
scalar object.
 
 

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[PD] perceived loudness

[school shoes]

hello
I understand that our ears perceive midrange sounds as louder than very low or 
very high ones. I am wondering if there is some sort of simple method or 
formula or object that compensates for the perceived difference in volume, so 
that if i have say a patch randomly generating osc~ frequencies between 50 and 
15000 hz, the volume [*~] of each frequency can be adjusted so that they all 
have the same overall presence?
thanks in advance. 
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