Pd-list July 2006

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130 participants
223 discussions

Sending OSC packets with a php script
by patco 01 Jul '06

01 Jul '06

Hello, I've found this php script for sending OSC packets: http://www.a2hd.com/software/OSC.phps i've modified the test (at the end of the script) for avoiding errors: _____________________________________________________ /** Run some tests to make sure the library behaves in a sane way. */ function test_osc_lib() { $c = new OSCClient(); $c->set_destination("localhost", 3333); /** $m1 = new OSCMessage("/test", array(new Timetag(3294967295, 5), new Infinitum(), new Blob("aoeuaoeu!"))); $m1->add_arg(28658.93, "d"); */ $m2 = new OSCMessage("/bar", array(test, one, two)); $b = new OSCBundle(); $b->add_datagram($m1); $b->add_datagram($m2); $b2 = new OSCBundle(array($m1, $b)); //echo $b2->get_human_readable(); //echo $m1->get_human_readable(); $c->send($m2); } // Uncomment to run the test test_osc_lib(); ?> ___________________________________________________ For testing it, just load attached patch and run the PHP script with a server that allows socket_create() Patco. --------------------------------- Yahoo! Mail rÃ©invente le mail ! DÃ©couvrez le nouveau Yahoo! Mail et son interface rÃ©volutionnaire. #N canvas 0 0 454 304 12; #X obj 125 92 dumpOSC 3333; #X obj 121 151 OSCroute /bar; #X obj 118 214 print bar; #X obj 248 152 print dumped; #X text 69 26 receive messages sent by OSC.php; #X connect 0 0 3 0; #X connect 0 0 1 0; #X connect 1 0 2 0;

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Re: [PD] converting decimal to binary
by adam armfield 01 Jul '06

01 Jul '06

<pre>What type of output are you looking for? Because beyond 6 digits, Pd's floating point numbers look funny, and 6 digits only covers 63 in binary. Do you want a character string? I don't know what kind of format you can work with. Pd could, alternatively, output 1's and 0's sequentially as a series of floats. at the moment i'm still working on that bit, the formula that Federico gave me outputs 1&0's to seperate outlets, which i think would drive a set of toggles quite well (though when i tried it pd crashed, i think because the number i input was too big, & the expr object i made ran out of digits [nbx] | [expr $f1>>0&1; $f1>>1&1; $f1>>2&1; $f1>>3&1; ... ] and so on... depending on how many bits you want to display ------------------------ i want to make a sequencer which generates rhythms according to the fibonacci sequence, there's been some talk of it on another forum, i've done some cut and paste and present the main details here (it looks pretty interesting) original thread is: http://www.dogsonacid.com/showthread.php?s=5ab52100bff93bb30ced93458a7e9529… all the best adam ----------------------------------- i'm not sure if mean - "why do i think fibonacci sequences will yield rhythms that sound good?" or "how do i do it?". i guess i'll try to answer both... harmonics have such an integral role in so many things - i just can't believe that they don't come into play in rhythm sequences. surely - there is some sort of "rule" that determines which patterns "sit" well with each other, and which don't. clearly - simply placing drum hits in at random sounds like ass, whereas certain intervals seem to produce a pleasant interplay in the beat. i've always figured this must have something to do with the properties of the fibonacci sequence, since harmonic relationships are the deciding factor in so many appliactions dealing with interplay and relationships between things, from which atromic orbitals will react with one another - so which tones sound good when played together - to the proportion of objects in visual arts. i'm a bit hesitant to just spill the beans so soon - but what the hell, i've always thought that information/knowledge should be "open-source". so what the hell; basically the method goes like this: you always have some fundamental resolution - most of us use 1/8th notes or 1/16th notes. so the measure can be represented as a string of discrete bits, or a binary word, where each bit in the word represents a unique position in the measure. i'll use the housebeat with 1/8th note rez. for an example because it has lots of clean harmonics. note that the least significant digit is used to denote the first position - so we've got a big/little-endian switch going on... kick: 01010101 this binary word evaluates to 85 so if we take 85 to be our "base" (i.e. the first element in the series) - and continue in the fibonacci sequence, we get 85*(1+1) = 170 which, in binary is: 101010 ^ the open highhat pattern continuing on the next element is 21*(2+1) = 255 11111111 ^ commonly used for closed highhats basically - for breakbeats - i take 1 or 2 elements which i want to draw by hand. in the midi file above i used: 00100001 (kick) and 01000100 (snare) and added them together. then i took each row, and recursively added the current word to the previous word to produce the next word. the method is still a work in progress - i'm still experimenting with "clipping" - in this case meaning continuing the sums, and clipping off any bits higher than the "all 1s" word. (in this case > 255). alternatively, you could just increase the res i suppose to get some really complicated breaks with 16,32,or even 64 bit resolution. this doesn't have to be used just for durms - you could use it to generate the rhythm sequences for anything. the possibilities are quite mind-boggling. so there ya go dogs - if there's a number theorist in the house who'd like to collab with me in developing applications of this method - hit me up. ------------ least significant means "smallest numerical value". each digit in a binary word, read from right to left, indicates another power of 2. e.g: the rightmost position is bit*2^0, ("bit" referring to whether that digit either 1 or 0) the next is bit*2^1, the next is bit*2^2, and so on. so the first (i.e. rightmost) bit coincides with the first note/event in the measure. if you were to order the bits the other way around, you'd always roll over your word's maximum value in every operation. it's a minor point, but one that is definitely necessary. just think of it like this: the smaller "time values" of the events go with the smaller (or less significant) digits of the number. the fibonacci sequence goes like this, let "e" denote event, and i denote which event it is in the sequence. so e_i refeers to an arbitrary event; e_i+1 refers to the one that comes next, and e_i-1 refers to the one that came before it. so the fibonacci sequence is: e_i+1 = e_i+e_i-1 in the example i posted earlier, our "base" is 85. meaning we multiply each element of the fibonacci sequence by 85, so instead of 1,2,3,5,8 - you would get 85,170,255,425,680 = 85*(1,2,3,5,8). ------------ if you can find it - you should check out "the schillinger method of musical composition" - it uses wave analysis to generate melodies and rhythms. i actually have a copy of volume 1 i got many years ago - which is where i got started thinking this way. it's really interesting stuff - but a heavy read. to do what i want to do tho' using wave analysis, i'd have to break out my old differential equations notes & remember how to do a fourier analysis . like that's gonna happen ---------- Everyone has their own way (use single hits and sampling for me) but using the fibonacci sequence for making beats sounds interesting!!! Here's another way to describe, even though I don't use this sequence to make beats, just happen to know it: Bases:Fsub1=1, Fsub2=1 Recursive rule: FsubN=FsubN-1+FsubN-2, N greater than or equal to 3... so F3=F2+F1. And you can move up to any number in the sequence using this format. </pre> ___________________________________________________________ Does your mail provider give you FREE antivirus protection? Get Yahoo! Mail http://uk.mail.yahoo.com

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[GEM] libGL problem on ubuntu
by patco 01 Jul '06

01 Jul '06

Hello, I've just installed ubuntu x86_64. A problem is appearing when I am creating a gemwin: error: GEM: Unable to create single buffer window error: GEM: Error creating const context error: GEM: A serious error occured creating const Context error: GEM: Continue at your own risk! error: GEM: Unable to create double buffer window error: GEM: Unable to create window error: GEM: gemwin: no window made on console it says: ... libGL warning: 3D driver claims to not support visual 0x2b libGL warning: 3D driver claims to not support visual 0x2c libGL warning: 3D driver claims to not support visual 0x2d __driCreateNewScreen_20050727 - succeeded libGL warning: 3D driver claims to not support visual 0x22 libGL warning: 3D driver claims to not support visual 0x23 libGL warning: 3D driver claims to not support visual 0x24 ... A few searches on google gives me a single information about this problem, it could come from: xserver-xorg-video-tdfx package This packege is not installed, I have this one installed: xserver-xorg-driver-tdfx I've done updates and tried several other drivers with no luck. Thanks for any advice. Patco. --------------------------------- Yahoo! Mail rÃ©invente le mail ! DÃ©couvrez le nouveau Yahoo! Mail et son interface rÃ©volutionnaire.

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Pd-list July 2006