Pd-list April 2006

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136 participants
232 discussions

GUI to control [gemwin]
by Hans-Christoph Steiner 05 Apr '06

05 Apr '06

I made a GUI object to control the [gemwin] object that also displays its status. When a new instance is created, it queries existing instances to get the status. That way all instances will show the same status. I am planning on using this in the intro to Gem tutorial/workshop that I am currently working on. So feedback would be appreciated. Is there any way to query [gemwin] directly? .hc ________________________________________________________________________ ____ "Looking at things from a more basic level, you can come up with a more direct solution... It may sound small in theory, but it in practice, it can change entire economies." - Amy Smith

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"ead_tilde_setup not found" in Pd-Extended
by Chuckk Hubbard 05 Apr '06

05 Apr '06

I see ead~.dll in the extra folder for Pd-Extended, but somehow it can't create the object. Is there something I need to change? Thanks. -Chuckk -- "It is not when truth is dirty, but when it is shallow, that the lover of knowledge is reluctant to step into its waters." -Friedrich Nietzsche, "Thus Spoke Zarathustra"

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Poly synth note off
by Alexandre Quessy 05 Apr '06

05 Apr '06

Hi all, I am building a simple synth for my MIDI keyboard. I was wondering if it was possible to stop every note when it is off. You know what I mean ? I don't want them to last forever, or a fixed amount of time : I want them to stop whenever I release the key. This should be pretty trivial... as I am kind of new to MIDI instruments. Also, I am interested in any MIDI synth patch there is around. Any suggestion ? Regards, Alexandre Quessy http://alexandre.quessy.net

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fluid~ crashes
by Ben Saylor 05 Apr '06

05 Apr '06

Hi Frank, list, When I open fluid~-help.pd or create a fluid~ object, Pd segfaults. I have flext and fluid~ from current CVS, pd-0.39-0, gcc 4.0.3 (have also tried with 4.1), Debian unstable. I compiled fluidsynth 1.0.6 without LADSPA support. I found that it was crashing in the beginning of fluid_init(), here: if (synth != NULL) { delete_fluid_synth(synth); } presumably because synth should have been intialized to NULL but was not. So I set synth = NULL in the constructor. Now, it spits out the following to the terminal and dies: *** glibc detected *** malloc(): memory corruption: 0x082586f8 *** Now, the crash happens here: settings = new_fluid_settings(); Any ideas would be appreciated, as I'd really like to be able to use fluid~... Thanks, Ben

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Re: [PD] Pd's wikipedia page
by david golightly 04 Apr '06

04 Apr '06

I think though it would be confusing to associate "pointers" in C with "pointers" in Pd. They are related but not exactly equivalent concepts. And we don't necessarily need to mention "pointers" on the Wikipedia site - that's a detail that's more suited to a tutorial that an encyclopedic overview. I've added a little section on data structures to the site - check it out and let me know what you think. I'd still like to get a good screenshot of a non-score use of data structures, as well. -david On 4/3/06, Arie van Schutterhoef <arsche(a)xs4all.nl> wrote: > >describe just what "data structures" > -Reads like a poem: > http://en.wikipedia.org/wiki/Data_structure > > >"pointers" > -Slighthly less prosaic, but nonetheless readable: > http://www.cs.cf.ac.uk/Dave/C/node10.html > > AvS > > > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > ..................................................................... > > ` |Schreck Ensemble . . . . . . . . . . . . . . . . . . . . + > > ` |# -laboratory for live electro-acoustic music- # | > | http://www.schreck.nl/ | > | http://www.xs4all.nl/~schreck/ | > ` *===========================================================++ > ` |Compositions http://www.xs4all.nl/~schreck/html/compo.html | > ` |Samples http://www.xs4all.nl/~schreck/html/samp.html | > ` |Patches http://www.xs4all.nl/~schreck/html/pat.html | > ` |Videos http://www.xs4all.nl/~schreck/html/video.html | > > ` |Scores http://www.xs4all.nl/~schreck/html/scores.html | > > *===========================================================++ > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > ..................................................................... > > > > _______________________________________________ > PD-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list >

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setting variables within an if condition in [expr] or [fexpr~]
by Peter Worth 04 Apr '06

04 Apr '06

the algorithm i'm trying to implement using fexpr~ requires some kind of variable, to store whether it's current output is on or off (1 or 0) - it needs to act differently in each case. ideally i'd like to simply put the output back into another input so i can just query its current state, but obviously this causes dsp loop errors, and i cant use send~ and recieve~ to do this because it delays it by a block, so on a sample by sample basis its completely out of date by the time it comes back as one of the inputs.. so i'm guessing i need to use a variable or [value]. but can i set this within an fexpr~ object, and will it update fast enough (if it takes a block to update then its no good). any ideas? thanks.

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readanysf~ control output of seconds played
by Gerda Strobl 04 Apr '06

04 Apr '06

Dear list, I play a file using sound [readanysf~] which has the function of showing me the approximate time in seconds--unfortunately the numbers at the output are not always the same(but using always the same soundfile). I need to send a 1-message 3 seconds before the file stops--so I compare the actual time with the overall time of the (soundfile -3)---the problem is now that sometimes the [==] message never sends a 1 because the left input sometimes reaches now value that equals (filelength-3). print: 14.7215 print: 16.1844 print: 17.6472 soundfilelength=18.49 int(soundfilelength-3)=15 when the output of the seconds of readanysf~ is like above--it doesn't equal 15 How can I quickly solve that? Attached is a patch+*.wav illustrating the problem. Thank you. Gerda #N canvas 0 0 615 439 10; #X obj 220 162 readanysf~; #X obj 285 197 route float length; #X obj 285 300 ==; #X floatatom 345 293 5 0 0 0 - - -; #X obj 285 342 print now; #X floatatom 345 225 5 0 0 0 - - -; #X floatatom 285 255 5 0 0 0 - - -; #X obj 345 249 int; #X obj 285 278 int; #X obj 345 271 - 3; #X obj 300 323 s end; #X obj 440 235 loadbang; #X msg 439 256 18; #X msg 220 134 open /home/gerda/campioni_pd/earth41.wav; #X msg 164 100 start; #X obj 221 221 dac~ 1; #X floatatom 229 370 5 0 0 0 - - -; #X obj 225 288 print; #X connect 0 0 15 0; #X connect 0 2 1 0; #X connect 1 0 6 0; #X connect 1 1 5 0; #X connect 2 0 4 0; #X connect 2 0 10 0; #X connect 2 0 16 0; #X connect 5 0 7 0; #X connect 6 0 8 0; #X connect 6 0 17 0; #X connect 7 0 9 0; #X connect 8 0 2 0; #X connect 9 0 2 1; #X connect 9 0 3 0; #X connect 11 0 12 0; #X connect 12 0 2 1; #X connect 13 0 0 0; #X connect 14 0 0 0;

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Pd's wikipedia page
by david golightly 04 Apr '06

04 Apr '06

Hey list, I found myself on Wikipedia today inspecting "our" site for Pd. I made some changes, added some info and uploaded a screenshot of a patch I happened to have open at the time. The screenshot before was really pointless, didn't really do anything at all. Not to be too self-conscious, but the Max wikipedia page has an Autechre patch up... so I'm inviting anyone out there to put up a better screenshot than the one I did. I'm sure there's more impressive(-looking) stuff out there, and as we know (from Autechre), it's all about how impressive your patches look, not what they sound like. ;0 I know that Wikipedia also has capability to upload PD (as in Public Domain) sound samples up, though it's hard to know where to start with Pd. Also, is there anything like a list of actual performing artists who use Pd either live or in studio? I'm sure several on this list are worthy of mention... The page could use a little expanding as well. I put back the contended assertion that Pd is (like Max) a dataflow programming language, maybe better to say "based on the principles of dataflow programming" or something like that. Tear it apart. Please. Just put it back together. Best, David

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Synths! (Please Read)
by Renato Fabbri 03 Apr '06

03 Apr '06

Hi, We are making a very light distro for multimedia and programing that can run on obsolete computers here in Brazil. This is very important for public schools and general brazilian. We are not even going to put some synths like Zynaddbubfx. But PD is there!!! So we would apreciatte some synth/sampler/sequencer patches you like/use/Å½ve made on PD. IÅ½ll see how we can put some credits about the developers, and we wonÅ½t put them on the distro without the developerÅ½s permission. thank you all, ref __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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Re: [PD] setting variables within an if condition in [expr] or [fexpr~]
by Georg Holzmann 03 Apr '06

03 Apr '06

Hallo! > basically, i want to make an abstraction which has a signal input, and > a signal output (which is initially silence regardless of input > signal). when it recieves a bang (in a different inlet maybe) it > should wait for the next zero-crossing in the input signal, then let > the signal through for a specified number of zero-crossings (lets say > 20) then it turns off again on the 20th zero-crossing. okay I understand ... > so far i've got a signal which is 1 when there is a zero crossing and > 0 otherwise (attached), i just need to use this to switch on the > output when the first 1 arrives at a point after there is a bang or a > 1 to signal that we want output to turn on. okay I see ... so the problem ATM is how to count the zero crossings ... > i see.. so to do things sample by sample, everything has to be > signals? no control values. thats what makes this tricky i guess. you can also have a look at the iem_t3_lib external which allows you sample accurate processing ... On the other hand: do you really need to be sample accurate ? I mean do you use it for measurements or for sth./what else ? LG Georg -- E-Mails und Internet immer und überall! 1&1 PocketWeb, perfekt mit GMX: http://www.gmx.net/de/go/pocketweb

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Pd-list April 2006