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

Heavy distortion/clipping in Windows
by Moisés Gabriel Cachay Tello 18 Feb '15

18 Feb '15

Hello! This might be a long post, so I apologize if it results a bit boring to read. First of all, I want to thank every single person behind ChucK: creators, mantainers and users, the work you guys are doing is invaluable! You all have my respect and admiration. I have posted a couple of answers in this list, since I was part of the Coursera introduction course. Because of (mostry work-related) some things that took most of the little time I had, I (sadly :() left ChucK behind. A couple weeks ago, however, I managed to get the ChucK book and 'regenerate' my interest in the language. I'm facing an odd problem during my journey. Following the examples provided in the book (and also writing my own pieces), sometimes the output sound gets heavily disorted as if the sound levels go far beyond the maximum and there's an extreme clipping sound. So I put a gain behind and set it's level lower of if there's an nRev, I set the mix down, everything resulting in a very quiet sound, in a strong contrast of what I would expect the sound to be. I'm attaching a sample of the distortion produced by playing the Listing 8.9 (Jazz Band) from the book [1]. The code running is unmodified. Set your headphones/speakers low since this can be very uncomfortable. The weirdest part of all this, is that this distortion only occurs when the code is running 'live'. If I use the 'Export' function in miniAudicle, the resulting sound is crystal-clear. I've also used a simple snippet to record the output to a file manually and the same good-sounding result occurs. I tried using another sound interface (as far as I know, the HDMI counts as another audio interface), and an external interface embedded into my Beringher UMA25S MIDI controller with the same results every time. I'm at x64 W7 with a Realtek HD embedded soundcard (it's a mid 2013 laptop). I'm not using any sound-boosting software (I found one that came with my laptop, disabled it and the same result shows). I'm using miniAudicle 1.3.3 (didn't tried the command line version since I guess the results will be the same) with pretty much the default settings: default input/output devices, 44.1KHz sample rate and 128 bytes buffer size (higher latencies doesn't make any difference). Since I don't know how to properly diagnose/solve this problem, I hope some of you can give me some insight to get over this and keep ChucKing :) PS: It seems my email got lost somewhere in time, due to the attachment so I'm replacing it to a direct download link: [1] https://www.dropbox.com/s/spa3r6os1hgrb0i/distortion.mp3?dl=0 -- -Moisés

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Re: [chuck-users] chuck-users Digest, Vol 115, Issue 3
by David 17 Feb '15

17 Feb '15

Sorry to take so long to reply, been busy. Anyway, I downloaded the latest Linux versions of the source for Chuck and miniAudicle (1.3.5 and 1.3.3, respectively). I was able to build Chuck, and it seems to be working, but when I tried to build miniAudicle, I got the following error: qmake-qt4 "RTAUDIO_BACKEND=ALSA" -o makefile.qt-alsa miniAudicle.pro uic: Error in line 51, column 41 : Unexpected attribute alignment uic: Error in line 189, column 41 : Unexpected attribute alignment I googled the error message and found some discussions about differences between qt3 and qt4. Could that be the problem? I followed the instructions regarding dependencies, but maybe the instructions are out-of-date? Thanks. On Mon, Feb 9, 2015 at 12:00 PM, <chuck-users-request(a)lists.cs.princeton.edu> wrote: > Send chuck-users mailing list submissions to > chuck-users(a)lists.cs.princeton.edu > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > or, via email, send a message with subject or body 'help' to > chuck-users-request(a)lists.cs.princeton.edu > > You can reach the person managing the list at > chuck-users-owner(a)lists.cs.princeton.edu > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of chuck-users digest..." > > Today's Topics: > > 1. miniAudicle mailing list? (David) > 2. Re: miniAudicle mailing list? (Spencer Salazar) > > > ---------- Forwarded message ---------- > From: David <dfkettle(a)gmail.com> > To: chuck-users(a)lists.cs.princeton.edu > Cc: > Date: Sun, 8 Feb 2015 12:33:58 -0500 > Subject: [chuck-users] miniAudicle mailing list? > Hi! > > Has the miniAudicle mailing list been renamed, or merged with this > one? When I click on the link on the Community page > (http://chuck.cs.princeton.edu/community/), I get a message "No such > list audicle". > > I'm trying to build miniAudicle for an ASUS EeePC running EasyPeasy, > but I'm getting some errors. I can post them here if the miniAudicle > mailing list is no longer in existence. > > Thanks. > > > > ---------- Forwarded message ---------- > From: Spencer Salazar <spencer(a)ccrma.stanford.edu> > To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Cc: > Date: Sun, 8 Feb 2015 13:12:01 -0800 > Subject: Re: [chuck-users] miniAudicle mailing list? > Hi David, > > I actually don't know what happened to the miniAudicle list, but I would recommend posting any issues with miniAudicle or other chuck-related software here. > > spencer > > > On Sun, Feb 8, 2015 at 9:33 AM, David <dfkettle(a)gmail.com> wrote: >> >> Hi! >> >> Has the miniAudicle mailing list been renamed, or merged with this >> one? When I click on the link on the Community page >> (http://chuck.cs.princeton.edu/community/), I get a message "No such >> list audicle". >> >> I'm trying to build miniAudicle for an ASUS EeePC running EasyPeasy, >> but I'm getting some errors. I can post them here if the miniAudicle >> mailing list is no longer in existence. >> >> Thanks. >> _______________________________________________ >> chuck-users mailing list >> chuck-users(a)lists.cs.princeton.edu >> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >> >> > > > > -- > Spencer Salazar > Doctoral Candidate > Center for Computer Research in Music and Acoustics > Stanford University > > spencer(a)ccrma.stanford.edu > +1 831.277.4654 > https://ccrma.stanford.edu/~spencer/ > > > _______________________________________________ > chuck-users mailing list > chuck-users(a)lists.cs.princeton.edu > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >

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miniAudicle mailing list?
by David 08 Feb '15

08 Feb '15

Hi! Has the miniAudicle mailing list been renamed, or merged with this one? When I click on the link on the Community page (http://chuck.cs.princeton.edu/community/), I get a message "No such list audicle". I'm trying to build miniAudicle for an ASUS EeePC running EasyPeasy, but I'm getting some errors. I can post them here if the miniAudicle mailing list is no longer in existence. Thanks.

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Sideband Chronicles
by Daniel L. Trueman 05 Feb '15

05 Feb '15

hi all, chuck in heavy use here! =========================> Sideband and the Princeton Laptop Orchestra (PLOrk) are pleased to announce the release of The Sideband Chronicles, a monthly series of laptop ensemble pieces, artfully filmed and recorded, presented along with their histories, motivations, and information about how others might perform them. Our first Chronicle is Jascha Narveson’s In Line, a visually beautiful “game” piece performed with the now standard laptop performance interface, the tether. Forthcoming Chronicles will include works by Konrad Kaczmarek, Anne Hege, Jeff Snyder, Dan Trueman, Lainie Fefferman, and others, and will span all of 2015 and beyond. Learn more about The Sideband Chronicles, Sideband, and PLOrk. http://www.sidebandchronicles.com http://www.sidebandchronicles.com/about/ http://www.sidebandchronicles.com/jascha-narveson-in-line/ <=========================

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Asynchronous FFT?
by Marc Evans 31 Jan '15

31 Jan '15

Hi all, I'm working on a sound installation that uses ChucK for synthesis, and am trying to figure out how to have a variety of interesting reverbs that evoke different kinds of environments. Convolution reverb using a variety of impulse responses would be ideal. This installation does not have any real-time input, so delay is not really a factor. I came across this wonderful FFT convolution example <https://lists.cs.princeton.edu/pipermail/chuck-users/2014-November/007807.h…> that Perry Cook put together, and it's great, except that there is a click every hop-size as (I assume) the FFT calculation takes place. I realize that maybe there wouldn't be such a click if I used a shorter impulse response, but I wonder if there's a way to spread out the calculation so that it isn't all happening on one sample. Is there any way to do the FFT asynchronously? Again, if it added more delay, it's not really a big deal. Thanks! Marc -- Marc Evans PhD Student in Music Composition at UCSB Stanford BA '10, Music; MA '11, Music, Science and Technology www.marcevansmusic.com "We are here on Earth to do good to others. What the others are here for, I don't know." --W. H. Auden

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Re: [chuck-users] reading random sample
by Julian Faust 29 Jan '15

29 Jan '15

If you know in advance what set of files to choose from, you could start by reading in a text file with all the file paths then make the random selection in chuck. This avoids system calls, which can mess with the timing of your real-time application since the chuck VM misses the time spent doing the system call (i.e. Std.system(“sleep 1”) causes mayhem). But if you want to be able to add files to a directory on the fly I think you have to do the system call. Just be aware of the timing issue - maybe it can be done in a thread. -Julian > From: Atte <atte(a)youmail.dk> > Subject: [chuck-users] reading random sample > Date: January 28, 2015 at 6:32:29 AM GMT-5 > To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Reply-To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > > > Hi > > I'm trying to write a function that reads a random samples from a > directory into a SndBuf. I'm not aware of the the necessary > functionality being available in chuck, so I wrote a bash script that > picks a random file from a directory and writes the name with full path > to /tmp/random_file. When I call Std.system() I get a warning that I > should use --caution-to-the-wind. This works well in chuck, but in fact > I'm in miniAudicle, how do I call miniAudicle with that option? Just doing > > $ miniAudicle --caution-to-the-wind > > makes miniAudicle think I want to start with a blank file called > "--caution-to-the-wind"... > > -- > Atte > > http://atte.dk http://a773.dk > > > > From: Atte <atte(a)youmail.dk> > Subject: Re: [chuck-users] reading random sample > Date: January 29, 2015 at 6:25:08 AM GMT-5 > To: chuck-users(a)lists.cs.princeton.edu > Reply-To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > > > On 01/28/2015 12:32 PM, Atte wrote: >> how do I call miniAudicle with that option? > > Nevermind, I'm back to chuck, seems much more stable... > > -- > Atte > > http://atte.dk http://a773.dk >

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reading random sample
by Atte 29 Jan '15

29 Jan '15

Hi I'm trying to write a function that reads a random samples from a directory into a SndBuf. I'm not aware of the the necessary functionality being available in chuck, so I wrote a bash script that picks a random file from a directory and writes the name with full path to /tmp/random_file. When I call Std.system() I get a warning that I should use --caution-to-the-wind. This works well in chuck, but in fact I'm in miniAudicle, how do I call miniAudicle with that option? Just doing $ miniAudicle --caution-to-the-wind makes miniAudicle think I want to start with a blank file called "--caution-to-the-wind"... -- Atte http://atte.dk http://a773.dk

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Debugging Segmentation fault: 11
by Gonzalo 28 Jan '15

28 Jan '15

Hi, On a project I'm working on, I sometimes get a "Segmentation fault: 11" error, and the program crashes. But I can't figure out when it happens, and cannot reproduce it. It's a big project, with many components communicating via events, and I have no idea who's triggering the problem. My question is how would you go about debugging this? Any ideas what can be triggering it? It sounds very generic... Probably unrelated, but just in case, I also got this (only once so far): chuck(22226,0x7fff790ee310) malloc: *** error for object 0x1028f3408: incorrect checksum for freed object - object was probably modified after being freed. *** set a breakpoint in malloc_error_break to debug Abort trap: 6 Thanks! Gonzalo

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Re: [chuck-users] WvOut sample size (????????? ????????)
by јеромонах Виталије 27 Jan '15

27 Jan '15

Thank you Michael Heuer, for your reply. I have already installed jackd and QJackCtl, but I am not so happy with it. It is much easer to work with ChucK compiled to use alsa and just start one single program (* chuck) than to wary about starting jackd, controlling it... Very likely I am missing something about jack but I have never made it to work smoothly. There were always some troubles with applications that utilize sound card when I run jack server, so I gave up. On the other hand, I don't understand why ChucK can not use sound card as any other application on my computer. For example: command line mp3 player mpg321 can play a mp3-file simultaneously with other programs. I can start several mpg321 commands from terminal and there will be no complains about hardware device being used. The same is with other audio/video players on my computer. None of them requires exclusively access to sound card hardware, and they all can cooperate smoothly. I would like very much if ChucK could do so. Vitalije

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Re: [chuck-users] WvOut sample size (????????? ????????) (Joel Matthys)
by јеромонах Виталије 27 Jan '15

27 Jan '15

> Hello Vitalije. > > You can compile ChucK with 'make linux-pulse' to use the PulseAudio > server. That will allow you to use other audio applications at the > same time. > > You are right that jackd is not as easy to work with as alsa, but it > is very useful when you want to send sound from one application to > another. It is powerful in the right situation. > > Joel Thank you Joel, I have compiled ChucK as you have suggested and now it works very well indeed. :-) Vitalije.

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