June 2009 - chuck-users - lists.cs.princeton.edu

a couple of questions
by Bozelos Dimitris 22 Jun '09

22 Jun '09

Hello everyone! 1) can default values be passed to a function? I've tried all of fun void test( int i = 0) fun void test( 0 => int i) fun void test( int i => 0) but nothing works and in the manual nothing is stated. Anybody knows? I would be surprised if you cannot pass default values to a function. Why if so? 2) by printing <<< now >>>; I get the timestamp from the virtual machine, but if I do <<<now>>>; /// do some stuff <<<now>>>; the two outputs are exactly the same even if the stuff in between last for some seconds. Why? How can I know the duration of something? Cheers, Dimitris ___________________________________________________________ Χρησιμοποιείτε Yahoo!; Βαρεθήκατε τα ενοχλητικά μηνύματα (spam); Το Yahoo! Mail διαθέτει την καλύτερη δυνατή προστασία κατά των ενοχλητικών μηνυμάτων http://login.yahoo.com/config/mail?.intl=gr

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Solved: getting simplest mrmr => iPhone => OSC => ChucK app to work
by Robert Poor 21 Jun '09

21 Jun '09

Solved my own problem: I had accidentally left the OSC-Client running, which was evidently snarfing all my OSC events and preventing ChucK from receiving them. Killing OSC-Client made everything work. - Rob On Sat, Jun 20, 2009 at 21:38, Robert Poor <rdpoor(a)gmail.com> wrote: > I've installed mrmr on my iPhone. I also downloaded and installed > Niklas Saers's OSC-Client > (http://niklas.saers.com/Media/OSC-Client.zip) on my MacBook Pro. > OSC-Client shows that I've configured things correctly; I'm receiving > messages such as: > > messages: /mrmr/accelerometer/direction/2/PoorPhone 2 > messages: /mrmr/accelerometer/force/2/PoorPhone 54 > messages: /mrmr/accelerometer/angle/3/PoorPhone 134 > messages: /mrmr/accelerometer/force/3/PoorPhone 54 > > ... but haven't been able to get the simplest ChucK program to honor > the messages. Here's the code -- it never gets past the "oe => now" > call. I'm sure my error is obvious to the old hands out there -- any > suggestions? > > OscRecv orec; > 1500 => orec.port; > orec.listen(); > orec.event("/mrmr/accelerometer/force/3/PoorPhone, i") @=> OscEvent @oe; > while (true) { > oe => now; > while (oe.nextMsg()) { > oe.getInt() => int i; > <<< "got", i >>>; > } > } >

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getting simplest mrmr => iPhone => OSC => ChucK app to work
by Robert Poor 21 Jun '09

21 Jun '09

I've installed mrmr on my iPhone. I also downloaded and installed Niklas Saers's OSC-Client (http://niklas.saers.com/Media/OSC-Client.zip) on my MacBook Pro. OSC-Client shows that I've configured things correctly; I'm receiving messages such as: messages: /mrmr/accelerometer/direction/2/PoorPhone 2 messages: /mrmr/accelerometer/force/2/PoorPhone 54 messages: /mrmr/accelerometer/angle/3/PoorPhone 134 messages: /mrmr/accelerometer/force/3/PoorPhone 54 ... but haven't been able to get the simplest ChucK program to honor the messages. Here's the code -- it never gets past the "oe => now" call. I'm sure my error is obvious to the old hands out there -- any suggestions? OscRecv orec; 1500 => orec.port; orec.listen(); orec.event("/mrmr/accelerometer/force/3/PoorPhone, i") @=> OscEvent @oe; while (true) { oe => now; while (oe.nextMsg()) { oe.getInt() => int i; <<< "got", i >>>; } }

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iPhone => OSC apps
by Robert Poor 20 Jun '09

20 Jun '09

I've been having so much fun with my GameTrak controller in ChucK, I now want to add my iPhone as a controller. It appears that there are numerous iPhone/OSC apps, I'd like people's opinions about which ones work well and which ones don't. Here's my roster: iOSC ($2.99) Mrmr (free) OSCar (free?) OSCemote ($4.99) OSCRemote (free) pOSCa (free) TouchOSC ($4.99) Omissions? Recommendations? FWIW, I'm especially interested in the accelerometer data -- I think they all provide some support for that, but some may be better than others. - Rob

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Re: [chuck-users] eChucK Update
by Les Hall 17 Jun '09

17 Jun '09

Vilson, I'd be happy to send you a board. Also the Eagle CAD design files for it are posted on the eChucK forum Eagle CAD is freeware and cross-platform to Mac, PC, and Linux, so that's why I use it. Well, actually if you use it for profit you have to pay for it, but for us hobbyists it's free. The maximum allowable board size is small but sufficient for many small projects. If you download the files you won't have to reverse engineer the board but I'll send you the last remaining board anyway. It's nothing special, but it will give you the idea of what's going on. Oh, and if you prefer I have one board that's already chopped up into little boards. Please email me (inventor-66(a)comcast.net) with the mailing list and your preference as to which board you would prefer me to send (whole or chopped up). And especially thanks for participating in the project, I'm sure it will be wonderfully educational. Les Mark, Thanks for the encouraging words. I'm beginning to realize that having these first four boards made was primarily an exercise in learning Eagle CAD and working with a board house as a hobbyist, plus more importantly it has provided sort of a focal point for getting the ball rolling on the eChucK project, even if we never use these first boards in practice. It helped make people realize that the project is tangible and real and ever so slowly gaining momentum, etc. The cost at the board house I used was $100 for four boards, 3" x 4" in size. That's double sided with solder mask and screen printing, but not chopped up into little boards. So that works out to about $30 each including shipping. Not cheap, but acceptable I suppose. I hope you enjoy your perusal of the eChucK forum and please feel free to post a message if you like, the more people who chime in, the more excited other people will become. Enjoy. Les

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eChucK Update
by Les Hall 17 Jun '09

17 Jun '09

Hello again fellow ChucKists, You may recall a while back that I posted a few times about this interesting eChucK project that I conjured up one day and started developing. There has been some good progress and the project is moving along slowly but steadily. Here are the latest updates: eChucK is inspired by and related to ChucK. The "e" stands for electronic, so it's a hardware implementation of some of ChucK's features in concept. The idea is that we would like to create little bitty postage-stamp sized circuit boards that perform ChucK UGen, code, and instrument features in electronic form and then wire these boards up into free-standing "sculptures" that can create music on their own or interact with ChucK software or both. Also ChucK can model eChucK sculptures, which I have done a few times. One of the things that makes eChucK interesting to people, and perhaps it's most defining feature, is the interconnect method. As you know, modular synthesizers are typically built into panels or other enclosures and interconnected with patch cords or jumper wires. So you have this rigid structure with wires all over it, which is just fine as a way of hooking up the circuits. eChucK, however, is the dual or opposite of that - the yang of the synthesizer yin, in a sense, because the concept is to use solid wire (not stranded) to perform the interconnect in such a way that the strength of the solid wire is sufficient to hold the little boards in a free-standing 3D "sculpture". So there is no enclosure, no panel, etc. This idea is apparently at least somewhat novel as I have received news from various folks who find it interesting. OK, now for the updates. I had four dsPIC-based eChucK circuit boards made and two of them are taken, I'm keeping one for myself, and there remains one board to be mailed out for free to anyone who would like to work on the project. Please let me know if you would like me to send you this board. In other news, the awesome folks at www.electro-music.com were interested enough in eChucK to create a forum for it right next to the ChucK forum under the DIY section. I am moderator of that forum and I posted design files, hardware and software descriptions, and ChucK files there. Some folks have participated in the eChucK forum threads and a few are working on their own vision of what eChucK should eventually become. We have one fellow working on a special type of processor (i forget which) for eChucK in England, I'm working on some Lunetta-based eChucK possibilities, and I just heard from someone in Brazil who is planning to create an Arduino-based eChucK project. I purposely left the specifications of the project as open and unstructured as possible so that people could do things however they wanted as long as everything works together. So things are moving along nicely in the eChucK realm. To date there do not exist any completed projects, but momentum is growing steadily. I really enjoy the occasional email or post about eChucK, especially when someone is excited about the possibilities. Well, anyway, I thought it was time to mention all of this stuff on the ChucK Users list to keep you posted and also to see if anyone has any thoughts about the project. That's all for now. Les (Inventor)

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The ChucK Show
by Les Hall 17 Jun '09

17 Jun '09

Hi folks, I'd just like to say thanks to all who replied with new material for the show a while back, I was able to obtain and feature some of the works but not all. One of the links didn't work and for some reason I'm having trouble playing works that use samples in a directory residing next to the .ck file, but anyway there was enough new material to keep things interesting last week. If you have any .ck or .mp3 files that you would like me to play on the show, please let me know where to find them, this is an ongoing request. The best thing to do is email them to me (inventor-66(a)comcast.net) though attaching .ck files to ChucK Users posts works as does posts to the forum or links to your files. I don't seem to have the best luck with cutting and pasting code from websites, and that is time consuming anyway but I'm happy to do it if that's how your work is available. I'm preparing for show number 13 this week, and from here on out I'll be playing some repeats of classic songs and ChucK files from the past as well as playing guitar through some funky ChucK guitar processing programs. If you linked me to some work and didn't hear it on the show, please let me know so I can remedy that situation. Also I'd like to mention the Summer Solstice concert which is a 15 hour event broadcast on both www.electro-music.com and www.stillstream.com as a joint venture. There will be about two dozen artists of all electro-music genres from all around the world and I'll be featuring some ChucK material for half an hour, I believe at 1pm EST (or was it noon, i forget - GMT is so confusing to me). Anyway, you might want to tune in it will be a lot of fun - and consider stopping by the electro-music.com chatroom during the event if you like. Oh, and I talked to ChucK and he said the show is a little weird but he likes it. Hmmm, OK, personifying ChucK is rather strange but I find it humorous. Les (Inventor)

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tablet possibilities
by Atte Andre Jensen 15 Jun '09

15 Jun '09

Hi I just bought a wacom tablet and it partly working. But since this is my first tablet and there are no direct tablet examples in examples/hid I need to ask... Running chuck on the mouse.ck I only see stuff like [atte@vestbjerg hid_test]$ chuck mouse.ck mouse 'Wacom Volito2 4x5' ready mouse button 48 down mouse button 58 down mouse button 58 up mouse button 48 up mouse button 48 down mouse button 48 up mouse button 48 down mouse button 48 up mouse button 48 down mouse button 58 down mouse button 60 down mouse button 60 up mouse button 58 up mouse button 58 down mouse button 59 down mouse button 58 up mouse button 59 up mouse button 48 up I expected to be able to read to position of the pen on the tablet, is that possible? NB: I looked in the source in chuck_lang.cpp where stuff like this is defined on the language side, and tried printed out lots of the most likely stuff found there (like msg.scaledCursorY), but can't seem to hit the golden combo :-( -- Atte http://atte.dk http://modlys.dk http://virb.com/atte

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shreds ARE reclaimed...
by Robert Poor 15 Jun '09

15 Jun '09

All: I owe an apology to the ChucK community for spreading incorrect information: having played around with Tom Lieber's excellent Timeout class, it's clear that ChucK DOES reclaim expired shreds. As compensation for my embarrassment, I'm relieved that my code will become a LOT simpler. - Rob

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percussion samples for downloading?
by Robert Poor 14 Jun '09

14 Jun '09

Gang: I've been scouring the web for a source of downloadable percussion samples. I've found plenty of downloadable LOOPS, but I'm really just after individual instrument hits. And being a stingy guy, I'm hoping to find something for free. Any suggestions? - Rob

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