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

win32 woes
by James Hughes 07 Jun '07

07 Jun '07

I'm vainly trying to get chuck to work with my Via Epia CN10000EG in 5.1surround sound. It's running XP SP2. I'm able to play 6 channel audio files using mplayer. When I probe for audio devices I don't get any 6 channel capable devices: =========================================================== [chuck]: found 4 device(s) ... [chuck]: ------( chuck -- dac1 )--------------- [chuck]: device name = "Primary Sound Driver" [chuck]: probe [success] ... [chuck]: # output channels = 2 [chuck]: # input channels = 0 [chuck]: # duplex Channels = 0 [chuck]: default device = YES [chuck]: natively supported data formats: [chuck]: 8-bit int [chuck]: 16-bit int [chuck]: supported sample rates: [chuck]: 8000 Hz [chuck]: 96000 Hz [chuck]: [chuck]: ------( chuck -- dac2 )--------------- [chuck]: device name = "Vinyl AC'97 Audio (WAVE)" [chuck]: probe [success] ... [chuck]: # output channels = 2 [chuck]: # input channels = 2 [chuck]: # duplex Channels = 2 [chuck]: default device = NO [chuck]: natively supported data formats: [chuck]: 8-bit int [chuck]: 16-bit int [chuck]: supported sample rates: [chuck]: 11025 Hz [chuck]: 22050 Hz [chuck]: 44100 Hz [chuck]: [chuck]: ------( chuck -- dac3 )--------------- [chuck]: device name = "Primary Sound Capture Driver" [chuck]: probe [success] ... [chuck]: # output channels = 0 [chuck]: # input channels = 2 [chuck]: # duplex Channels = 0 [chuck]: default device = YES [chuck]: natively supported data formats: [chuck]: 8-bit int [chuck]: 16-bit int [chuck]: supported sample rates: [chuck]: 11025 Hz [chuck]: 22050 Hz [chuck]: 44100 Hz [chuck]: [chuck]: ------( chuck -- dac4 )--------------- [chuck]: device name = "Vinyl AC'97 Audio (WAVE)" [chuck]: probe [success] ... [chuck]: # output channels = 2 [chuck]: # input channels = 2 [chuck]: # duplex Channels = 2 [chuck]: default device = NO [chuck]: natively supported data formats: [chuck]: 8-bit int [chuck]: 16-bit int [chuck]: supported sample rates: [chuck]: 11025 Hz [chuck]: 22050 Hz [chuck]: 44100 Hz [chuck]: [chuck](via RtMidi): RtMidiIn::initialize: no MIDI input devices currently available. [chuck]: ------( chuck -- 0 MIDI inputs )------ [chuck]: [chuck]: ------( chuck -- 1 MIDI outputs )----- [chuck]: [0] : "Microsoft GS Wavetable SW Synth" [chuck]: =========================================================== Launching chuck doesn't fare much better. I tried using each different dac, in turn, but same results every time. =========================================================== $ chuck --dac0 -o6 chucksrc/inc.ck [chuck]: (via rtaudio): no devices found for given stream parameters: ... RtApiDs: requested channels (6) > than supported (2) by device (Primary Sound Driver). ... RtApiDs: requested channels (6) > than supported (2) by device (Vinyl AC'97 Audio (WAVE)). ... RtApiDs: requested channels (6) > than supported (0) by device (Primary Sound Capture Driver). ... RtApiDs: requested channels (6) > than supported (2) by device (Vinyl AC'97 Audio (WAVE)). [chuck]: cannot initialize audio device (try using --silent/-s) =========================================================== Does anyone have any insight? Thanks, James

3 3

report on my first livecoding gig
by Kassen 05 Jun '07

05 Jun '07

Well, that went well. It went well because there were lots of nice people, the competitors were friendly amongst eachother as well. It went well because nobody had seen ChucK and the mini in action before and now people were interested. In the last place it went well because I won, that's still nice, even if competition is less fun then duets, I think. I was up against two MAX-MSP users who were very talented. They should be because they won previous rounds, this was sort of the finale of the comptition but due to the format that was about three people I was thrown in as a surprise challenger. It was a bit sad for my second oponent who was clearly handicaped by having had to borrow a laptop and was thrown off by the different cursor behaviour, that's probably a huge factor in a graphical system like MAX. I was using the Mini with a external keyboard. The audience was just used to MAX which had been used by all (I think) contenders in all previous rounds and at first they gigled at my batered old keyboard and non-pro typing speed but with chucK a few lines go a long way. One fun moment was showing off "if(maybe)....." which -as I expected went over very well as it realy is quite funny. Because of the 6 minute format and my typing speed I tried to go for eficiency so I didn't dare to spend time on something like "while(float rubber_ducky) {//loop goes here}" which would've been even more funny (try it, it works). For the first round I used the Shakers as something like "Std.rand2(0,22) => shakers.preset;" seemed like the most economical way of quickly generating a nice rithmic yet changing foundation. Then I added a algorithmic bassline based partially on modulating the amount of harmonics in Blit instead of a filter. At one point, due to a misplaced "greater then" which should've been smaller sign my algorithem spun out of controll towards the high end but I was able to remidy this in time and it turned into a pleasant surprise that sounded good This round was a very narrow win, I thought my oponent Luc performed a very strong set of paterned noise and the audience agreed, aplauding at length for both of us, creating a need for a tie-breaking hand-vote-count. I the second round I improvised based on sending Impulse into ResonZ and then treating the result by sampling the dac using LiSa. This didn't go completely perfect but I think the audience picked up that I was considdering all my parameters on the fly and apreceated this. Overall it was a great experience and a huge thrill. I'd definately recomend it to those on the fense. Clearly you'd need to practice but that's only good for your ChucKing skills. I look forward to "defending my title" next season already. Yours, Kas.

7 13

Code that DOES modulate filter cutoff with ADSR
by Loscha 03 Jun '07

03 Jun '07

My answer is kind of a hack, but, it's working quite well. Use a Step waveform set to 1 at all times, have THAT 1 divided by the ADSR for the filter, then, my above code works like a charm! You could also, for example, spork off a different function that randomly triggered the filter's ADSR independently from the amplitude's ADSR, giving you all sorts of trance techno type patterns. Hope this helps you out, Josh, and other users. -Edward // Filter Wooby Wooby Woo BlitSaw bs; LPF lpf; ADSR amp; ADSR filt; Gain fg; amp.set( 1::ms, 350::ms, .2, 500::ms ); filt.set( 15::ms, 550::ms, 0, 400::ms ); Step s; s => filt; // 1 => s.value; 1 => s.next; bs => amp => lpf => dac; filt => fg => blackhole; 10 => fg.gain; 500 => lpf.freq; 2 => lpf.Q; spork ~ filteradsr (); for (int l; l < 32; l++) { <<<"L;",l,"">>>; spork ~ playanote ( Std.rand2(30,60) ); 800::ms => now; } fun void playanote (int nnum) { int mstodie; <<<"\n\n",nnum,"">>>; nnum => Std.mtof => bs.freq; <<<"On","">>>; amp.keyOn(); filt.keyOn(); Std.rand2(150,300) => mstodie; mstodie * 1::ms => now; <<<"Off","">>>; amp.keyOff(); filt.keyOff(); } fun void filteradsr () { while (true) { float currfilt; filt.last() * 800 + 250 => currfilt; currfilt => lpf.freq; //if (maybe) <<<filt.last(),currfilt>>>; 1::ms => now; } }

1 0

modulate LPF with ADSR
by Josh Lawrence 03 Jun '07

03 Jun '07

well, the trek continues... I've been copying and pasting, playing with, and generally screwing up chuck code over the past week. with some help, I've come up with this simple synth patch: // declare and connect chain of ugens Gain g => dac; 1 => g.gain; SawOsc s => ADSR e =>LPF f => g; e.set( 1::ms, 5::ms, .8, 500::ms ); e.keyOn(); e.keyOff(); f.freq( 800 ); now what I would like to do with modulate the filter with adsr. I think this approach should work: SawOsc s => ADSR e =>LPF f => g; ADSR e2 => f => g; my thinking goes like this: I need to declare e2 to differientiate it from my first adsr, which is defined as e. I have chucked e2 to my existing low pass filter, f. yet I'm stumped as to where to define how the adsr opens up the filter and closes it back down. can someone help me understand where to go from here? -- Josh Lawrence http://www.hardbop200.com http://www.joshlawrencetrio.com

2 1

stk questions - SawOsc and filters
by Josh Lawrence 31 May '07

31 May '07

Last night I sat down and was able to modify polyfony.ck to use a SawOsc instead of the Mandolin. My next step was to try to connect that oscillator to a filter, but how do I do that? My thinking was after I get done with defining my SawOsc parameters, I could just chuck the oscillator to the filter, like so? s => moog; (s is my SawOsc, and moog is Moog.) However this didn't work so well. When I did it, the osc stopped tracking note/frequency, and just played a single note all over the keyboard. Does anyone have any examples of a more complete subtractive synthesizer that I can model mine after? Final question: Is monophonic operation with glide out of the question with ChucK? Thanks, -- Josh Lawrence http://www.hardbop200.com http://www.joshlawrencetrio.com

2 1

"playing" chuck
by Josh Lawrence 30 May '07

30 May '07

hello all, while I'm not new to music or linux, I am brand-spanking new to chuck and, probably more importantly, the whole livecoding idea. that being said, here are my questions: I'm looking for what I'm calling a "text synth", that is a synthesizer that runs completely independent of any gui and can be played from my midi keyboard. I really like what chuck can do, but I can't figure out if it is capable of being played from a keyboard (midi). basically I'm looking for something to use as a "whole machine" - I can kick off a predetermined beat, kick off a bassline, load up a synth patch, play it, etc. I can see from the doc that chuck can do the first two pretty easily, but what about the third? -- Josh Lawrence http://www.hardbop200.com http://www.joshlawrencetrio.com

4 13

hid related "illegal operation"
by Kassen 30 May '07

30 May '07

Dear ChucKists, A possible HID issue... Since a while I'm using a new (for me) PS2 => USB converter for my game devices, it's by a brand called "EMS" and it has some advantages over other ones like being able to accomodate two devices on one USB connector, it has support for dancepads (meaning you can push left&right at the same time, something that some other converters tend to crash on) and it can map buttons to keyboard keys. Overall that means it's good and usefull, it was recomended by some sites about those dance games and those sites are quite demanding on converters since both timing and this dancepad-issue are very important to them. However, it also has "modes" called "compattible" and "normal". I'm not at all sure right now what those do exactly (sparse English documentation by Asian manifacturers...). Here comes the problem; ChucK will crash outright upon initiating the device if those aren't set exactly right. Hence, in my interpertation of the situation, there is something, somewhere, in our HID device amis. It would be fine with me for ChucK to complain about bad settings but simply crashing completely with no notification seems wrong. Clearly; "it sometimes crashes" isn't enough, so; should I find and send more data and if so what? Spencer? Also; has anybody tried hooking up a PS3 "Sixaxis" to ChucK on Windows with working motion sensing? That one looks nice for modulations and rocking the Shakers but I'd like to know it'll work because that's the only thing I'd use a Sixaxis for right now since so far nothing else about the PS3 tickles by fancy to the tune of 600 bucks. Cheers, Kas.

4 4

Mini Audicle doesn't write to disk until it closes properly?
by mike clemow 25 May '07

25 May '07

Hi All, So, I was hacking away in MiniAudicle and doing ctrl-s every line of code so that I didn't lose my work (I have a tendency to crash Mini, chuck, jack or some combination thereof) but I lost all my work when I crashed MiniAudicle anyway. Does MiniAudicle not write to disk until it closes properly? I can recreate this by creating a new file, typing some code, saving it as test.ck, and then closing MiniAudicle rudely by doing ctrl-c on the terminal, after which test.ck is nowhere to be found. Anyone else having this problem? Cheers, Clembie

1 0

chuck build for 64bit linux
by Bob Huebert 25 May '07

25 May '07

I've seen that others are having this issue as well and am curious on the status. We are kind of dead in the water with using chuck on our newer systems (dual singlecore opterons, SUN Ultra40s) and have had to relocate chuck service to winders box. We'd really, really, really, like to go back to the linux platform. We love chuck. We'd love chuck even more if it was 64bit compliant. Thanks in advance to all for guidance on this issue. -bob ________________________________________________________________________ Bob Huebert email: huebert(a)arsc.edu Visualization Systems Analyst voice: (907) 450-8638 Arctic Region Supercomputing Center FAX: (907) 450-8601 University of Alaska Fairbanks WWW: http://www.arsc.edu/

1 0

mini Audicle crashes when removing shreds
by Leuthold Dominik 24 May '07

24 May '07

hi guys i continuously encounter crashes with the new version of mini Audicle. it happens when i try to remove a shred from the virtual machine, when the corresponding shred is already closed. (removing by clicking on the "-" sign in the vm form). steps to reproduce: 1: open the otf_01.ck from the examples and add it to the vm 2: close the shred window of otf_01.ck 3: remove the shred by clicking ont the "-" in the vm 3: peng! aargh.. this drives me crazy :-P unfortunately i encounter this error every 10 minutes cause i'm livecoding with a lot of shreds the same time. sorry to say, but i need to go back and use the older version - too risky for my health ;-) cheers /moudi

3 7