September 2011 - chuck-users - lists.cs.princeton.edu

Scale & diatonic
by Hans Aberg 12 Oct '11

12 Oct '11

I have made a program, scale.ck, that admits one to work with scales, including tuning stretch, céleste tremulant, retune them, and then save to a file, with a line of code that can be pasted back into the source, available at next program startup. Scale tunings can be put into tuning banks, and otherwise defined by your favorite method. Details in the file. I have also updated my program for diatonic tuning systems, diatonic.ck. Just a few changes: adding some common tunings, fixing typos. The files are available here: http://www.math.su.se/~haberg/tuning_systems/ Hans

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feedback loop
by Tomtom 01 Oct '11

01 Oct '11

Hi chuckers, I've just tried to reproduce something I've done some time ago with guitar pedals : a feedback loop. input -> mixer -> delay -[wet]-> various effects -> back to the mixer `--> dekay -[dry]-> output by controling the amount of feedback on the mixer and the parameters of the effects in the loop you can create funny things. Now, for the ChucK part (not exactly the same, but quite similar) : ---- class MyDelay extends Delay { 1::second => max; } // feedback loop MyDelay d => JCRev r => Gain g => d; d => dac; fun void note() { SawOsc osc => Envelope e => d; 250 => osc.freq; 1 => e.value; e.keyOff(); 200::ms => e.duration => now; } 0.8 => g.gain; 0.2 => r.mix; 200::ms => d.delay; note(); 10::second => now; ---- with these parameters I get a positive feedback: sound is getting louder and louder, clipping and then silence. Using d.last(), I see the samples computed get outside the range [-1;+1] (thus the clipping) and then divert from 0 exponentially. To avoid this, I would like to truncate the sample values so they stay in the interval [-1;+1] : if s > 1 then s = 1, if s < -1 s = -1 I tried to use Dyno as a limiter, but it seems to do something more clever than that. That's all folks ! tom

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ChucK Runtime Error
by Andy Ashton 28 Sep '11

28 Sep '11

Good Morning/Afternooon/Evening! I am writing this e-mail to see if any windows users have come across the same problem I have with miniAudicle at the moment. The problem is whenever I try to add a shred to the VM it just comes up with the "miniAudicle.exe has encountered a problem and needs to close" error message. I've tried changing a few settings (increasing buffer size, putting the log level on "none") but nothing seems to work! Hope someone has come across this problem before and knows what to do, and if you want some more info on the matter feel free to ask, I'd be more than willing to provide if it means i can finally start programming! Thanks for your time,Andy

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NetIn and NetOut
by Matt Diamond 26 Sep '11

26 Sep '11

Hey all, What's the current state of NetIn and NetOut? Are they deprecated? I tried using NetOut on a recent build of ChucK and received an "undefined type 'netout'" message. I saw a mention of this problem in the mailing lists a while ago but I couldn't find any resolution on the matter. If these functions have been eliminated, have any been added in their place? I just wanted to play around with live streaming and figured "netout" was the way to go. Thanks, Matt

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more fun with random old school computer noise
by tempjayren＠gmail.com 24 Sep '11

24 Sep '11

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 this example gave me the idea to do what i want though i don't know how to implement it.take the random bleep bloop example of old school computer noise, using the sinewave thing as described, then bring in another random element. that can pick between 1 and 5. and at each number, it picks a different type of wave to play with, sin sqr saw puls or noise, though of course noise isn't a nice happy wave. if it picks say 3 on one run, then on the next run also happens to pick 3 we toss out that run and make it run again until it picks something different while either playing silence for that run or skipping it entire. my problem seems to be changing the patch based on the number. if it is 1, then the sin wave is used, just like the example. if 2, then the sqr wave. and of course it would be a fixed dur for each run, say 200 ms or so. have i left anything out this time? i hope not. - -- Zagreus sits inside your head, Zagreus lives among the dead. Zagreus sees you in your bed, and eats you when you're sleeping. Zagreus at the end of days, Zagreus lies all other ways. Zagreus comes when time's a maze, and all of history's weeping. Zagreus taking time apart, Zagreus fears the hero heart. Zagreus seeks the final part, the reward that he is reaping. Zagreus sings when all is lost, Zagreus takes all those he's crossed. Zagreus wins and all it costs, the hero's hearts he's keeping. Zagreus seeks the hero's ship, Zagreus needs the web to rip. Zagreus sups time at a drip, and life aside he's sweeping. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJOfVigAAoJEIaKvi7tbzRHOtYH/1EeBq7jKSV28lwYoFccc68/ phMpdkPsUTxUKf6dtewHea5nmgL5hQHLGBqUnPgV+RHqJZ97Xy6Bs+c89ORcQ5q1 21Q016XfRnp3BTupzCovNxCD2IQAuUDPBUksYvNsmgU2/EvfDHTP7UV/TsPdzcte 4sU/fopuq+VFbSxYytxIgfLHi6+YQVmMbrstHy6QSCU/4FCcpiLrfgbgXcd5oyIO vW6t1LaO9kEpSkdbsunucQDnWXDUWwYtoSktEcPJ1YZGma1L8RCmps3SOh6KsCci fNOfEiJbRvCAvV0IltbSW+RgjZRm5PCb/NtNnNvSfqmf62NAQfB9FPLOwn7GJMQ= =n86p -----END PGP SIGNATURE-----

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No devices found for compiled API's
by Raymond Boswel 03 Sep '11

03 Sep '11

Hi there, I am trying to run Chuck on Ubuntu 11.04 64 bit. When no input file is specified the standard "no input files" message appears. When trying to run an example I get the message :"[chuck]: (via rtaudio): no devices found for compiled audio APIs!". I've taken a look at the rtAudio.cpp file but can't make any useful deductions. I definitely do have a sound device and have successfully used portaudio on the same machine - Any help would be greatly appreciated! Regards, Raymond

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