January 2020 - chuck-users - lists.cs.princeton.edu

Chunity (ChucK for Unity): Release!
by Jack Atherton 29 Jul '22

29 Jul '22

Dear all, Hello! I'm happy to announce the initial official release of Chunity (ChucK for Unity)! http://chuck.stanford.edu/chunity/ http://u3d.as/1bvM Chunity is the integration of ChucK in Unity. (For those of you not familiar with the Unity game engine, Chunity gives you the ability to do realtime sound + music generation natively in Unity, tightly coupled to interactions with graphical objects.) You can use most (possibly all?) ChucK features, run new ChucK code on-the-fly at any time, and communicate between Unity and ChucK using "global" (new keyword!) ints, floats, strings, Events, and 1D int and float arrays. (More types to come!) You can even run multiple VMs that share the same strong timing! Check out this video of things people have already made with Chunity: https://vimeo.com/263613454 And check out the original description of Chunity in this NIME paper: http://chuck.stanford.edu/chunity/files/2018-nime-chunity.pdf We want to know what you all do with this! Please feel free to send works in progress, bug reports, feature requests, finished works, etc. to the chuck-users mailing list! We are also planning to send a sparse series of follow-up emails covering tutorials, new features, and cool projects that people in the community have created. Please see the tutorials, documentation, etc. at the official Chunity website: http://chuck.stanford.edu/chunity/ Thank you and happy ChucKing!! Best, Jack + the ChucK team Music:Computing:Design @ CCRMA

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Re: [chuck-users] Multichannel Mono Output using ChucK (Matthew.Noone)
by Perry Cook 30 Jan '20

30 Jan '20

The trick here is you also have to tell ChucK to be 4 channels. From the command line: chuck -c8 YourFile.ck depending on what your —probe shows, you might even have to specify which dac (and adc) to use, especially if they’re different device numbers or channel numbers. Also, might need to up the buffer size to avoid clicking, especially for lots of channels. Examp: chuck -c8 -bufsize2048 -in2 --dac1 --adc0 YourFile.ck Hope this helps, PRC PS: If you’re using MiniAudicle, then you need to do some menu stuff to pick output/input devices, and numchannels as well. > On Jan 30, 2020, at 8:02 AM, 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. Multichannel Mono Output using ChucK (Matthew.Noone) > 2. Re: Multichannel Mono Output using ChucK (Michael Heuer) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 30 Jan 2020 15:43:06 +0000 > From: "Matthew.Noone" <Matthew.Noone(a)ul.ie> > To: "chuck-users-request(a)lists.cs.princeton.edu" > <chuck-users-request(a)lists.cs.princeton.edu>, > "chuck-users(a)lists.cs.princeton.edu" > <chuck-users(a)lists.cs.princeton.edu> > Subject: [chuck-users] Multichannel Mono Output using ChucK > Message-ID: > <DB3PR0302MB332457E5B33EB57BB1603BDAFC040(a)DB3PR0302MB3324.eurprd03.prod.outlook.com> > > Content-Type: text/plain; charset="iso-8859-1" > > Hi all, > > I am trying to get multichannel output (to four speakers) using ChucK. > > I'm running on a Mac and using a Scarlett 18i8. > > I've tried running this test code. > > SinOsc s0 => dac.chan(0); > > SinOsc s1 => dac.chan(1); > > SinOsc s2 => dac.chan(2); > > SinOsc s3 => dac.chan(3); > > > 3::second => now; > > But I get this error. > > chuck](VM): NullPointerException: (UGen link) on line[3] in shred[id=1:MULTI] > > Any ideas? > With thanks, > Matthew > > > > Dr. Matthew James Noone > Sarode Artist & Irish Research Council Postdoctoral Fellow > Irish World Academy of Music and Dance > University of Limerick > >

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Classes to effectively use FluidSynth microtonally in ChucK
by Forrest Cahoon 30 Jan '20

30 Jan '20

Some time ago, I extended the FluidSynth chugin with hooks into libfluidsynth's tuning API. Once I started working with some more sophisticated soundfonts (such as those at https://sites.google.com/site/soundfonts4u/) I found a problem: it turns out that, the way libfluidsynth tuning works, the sample for the assigned-to note number is retuned to the pitch to which it is assigned, instead of using a sample which meant to be close to the desired pitch. So I wrote a set of ChucK classes so that I could just specify the note I want and let ChucK decide which MIDI note number to assign it to. If this is possibly of interest to you, check out my code at https://github.com/forrcaho/ChucK-code/tree/master/fluidsynth .

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Multichannel Mono Output using ChucK
by Matthew.Noone 30 Jan '20

30 Jan '20

Hi all, I am trying to get multichannel output (to four speakers) using ChucK. I'm running on a Mac and using a Scarlett 18i8. I've tried running this test code. SinOsc s0 => dac.chan(0); SinOsc s1 => dac.chan(1); SinOsc s2 => dac.chan(2); SinOsc s3 => dac.chan(3); 3::second => now; But I get this error. chuck](VM): NullPointerException: (UGen link) on line[3] in shred[id=1:MULTI] Any ideas? With thanks, Matthew Dr. Matthew James Noone Sarode Artist & Irish Research Council Postdoctoral Fellow Irish World Academy of Music and Dance University of Limerick

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New Electroacoustic Album in SuperCollider; ChucK; Csound; NI Reaktor; AudioMulch & 600 aprox VST`s.
by maria p cruz 24 Jan '20

24 Jan '20

My husband, new Electroacoustic Album in SuperCollider; ChucK; Csound; NI Reaktor; AudioMulch & 600 aprox VST`s. : https://joseignacioquevedogomezxenakis2.bandcamp.com/releases Maria

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Re: [chuck-users] Float to Int
by Perry Cook 21 Jan '20

21 Jan '20

We also added Std.ftoi(x) to the language a while back (at 1.3.2.0). It’s much clearer to read, and more obvious as to what’s going on and why, than the casting notation. To round, just add 0.5 to x in the function arg. so: > Std.ftoi(0.4*myBuf.samples()+0.5) => myBuf.pos; would set your play pointer to the 40% point in the sound buffer. Prc Sent from my iPhone > 1. Conversion float to int using SndBuf (M?che?l ? Cath?in) > > 40.0 => float pctPosInit; > pctPosInit/100*myBuf.samples() => myBuf.pos; > > > This throws the error argument types don't match. > I'm not seeing how to convert the float to an int here. > Thanks for your help! > > Micheal >

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Re: [chuck-users] Conversion float to int using SndBuf (Michael Heuer) => (ermina) => (Jean Menezes da Rocha)
by Mícheál Ó Catháin 21 Jan '20

21 Jan '20

Thank you Michael, Ermina and Jean! It is working a treat. Micheal On Tue, 21 Jan 2020 at 17:00, <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. Conversion float to int using SndBuf (M?che?l ? Cath?in) > 2. Re: Conversion float to int using SndBuf (Michael Heuer) > 3. Re: Conversion float to int using SndBuf (ermina) > 4. Re: Conversion float to int using SndBuf (Jean Menezes da Rocha) > > > > ---------- Forwarded message ---------- > From: "Mícheál Ó Catháin" <micheal.ocathain(a)gmail.com> > To: chuck-users(a)lists.cs.princeton.edu > Cc: > Bcc: > Date: Tue, 21 Jan 2020 13:08:02 +0000 > Subject: [chuck-users] Conversion float to int using SndBuf > Hi > What is the best way to convert a float to int in the following please? > > //I want to set myBuf.pos to a percentage of myBuf.samples()... > //Start playing at say 40% through the total number of samples. > > 40.0 => float pctPosInit; > pctPosInit/100*myBuf.samples() => myBuf.pos; > > > This throws the error argument types don't match. > I'm not seeing how to convert the float to an int here. > Thanks for your help! > > Micheal > > > > ---------- Forwarded message ---------- > From: Michael Heuer <heuermh(a)gmail.com> > To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Cc: > Bcc: > Date: Tue, 21 Jan 2020 09:35:12 -0600 > Subject: Re: [chuck-users] Conversion float to int using SndBuf > Hello Mícheál, > > The ChucK language has a cast operator '$' which might come in handy in > this situation > > (pctPosInit/100*myBuf.samples()) $ int => myBuf.pos; > > Cheers, > > michael > > > > On Jan 21, 2020, at 7:08 AM, Mícheál Ó Catháin < > micheal.ocathain(a)gmail.com> wrote: > > > > Hi > > What is the best way to convert a float to int in the following please? > > > > //I want to set myBuf.pos to a percentage of myBuf.samples()... > > //Start playing at say 40% through the total number of samples. > > > > 40.0 => float pctPosInit; > > pctPosInit/100*myBuf.samples() => myBuf.pos; > > > > > > This throws the error argument types don't match. > > I'm not seeing how to convert the float to an int here. > > Thanks for your help! > > > > Micheal > > _______________________________________________ > > chuck-users mailing list > > chuck-users(a)lists.cs.princeton.edu > > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > > > > > > ---------- Forwarded message ---------- > From: ermina <ermina(a)studioplume.com> > To: chuck-users(a)lists.cs.princeton.edu > Cc: > Bcc: > Date: Tue, 21 Jan 2020 16:47:40 +0100 > Subject: Re: [chuck-users] Conversion float to int using SndBuf > Hi, > > to convert a float to an int, > you need to explicitly cast the value with > 4.8 $ int => int foo; // foo == 4 > (as written here: https://chuck.cs.princeton.edu/doc/language/oper.html) > > So you would do something like > pctPosInit $ int => int pctPosInitInt > pctPosInitInt/100*myBuf.samples() => myBuf.pos; > > . e > On 01/21/2020 02:08 PM, Mícheál Ó Catháin wrote: > > Hi > > What is the best way to convert a float to int in the following please? > > > > //I want to set myBuf.pos to a percentage of myBuf.samples()... > > //Start playing at say 40% through the total number of samples. > > > > 40.0 => float pctPosInit; > > pctPosInit/100*myBuf.samples() => myBuf.pos; > > > > > > This throws the error argument types don't match. > > I'm not seeing how to convert the float to an int here. > > Thanks for your help! > > > > Micheal > > > > > > _______________________________________________ > > chuck-users mailing list > > chuck-users(a)lists.cs.princeton.edu > > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > > > > > > > ---------- Forwarded message ---------- > From: Jean Menezes da Rocha <jean(a)menezesdarocha.info> > To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Cc: > Bcc: > Date: Tue, 21 Jan 2020 12:58:36 -0300 > Subject: Re: [chuck-users] Conversion float to int using SndBuf > I would suggest that you call Math.round() before casting, as to prevent > undesirable effects: notice that in the example sent by ermina, 4.8 rounds > down to 4 when cast to int, which could cause miscalculations *depending > on your use case*. > The previous example would look something like this if we used > Math.round(): > > Math.round(pctPosInit) $ int => int pctPosInitInt; > pctPosInitInt/100*myBuf.samples() => myBuf.pos; > > Best regards! > > On Tue, Jan 21, 2020 at 12:49 PM ermina <ermina(a)studioplume.com> wrote: > >> Hi, >> >> to convert a float to an int, >> you need to explicitly cast the value with >> 4.8 $ int => int foo; // foo == 4 >> (as written here: https://chuck.cs.princeton.edu/doc/language/oper.html) >> >> So you would do something like >> pctPosInit $ int => int pctPosInitInt >> pctPosInitInt/100*myBuf.samples() => myBuf.pos; >> >> . e >> On 01/21/2020 02:08 PM, Mícheál Ó Catháin wrote: >> > Hi >> > What is the best way to convert a float to int in the following please? >> > >> > //I want to set myBuf.pos to a percentage of myBuf.samples()... >> > //Start playing at say 40% through the total number of samples. >> > >> > 40.0 => float pctPosInit; >> > pctPosInit/100*myBuf.samples() => myBuf.pos; >> > >> > >> > This throws the error argument types don't match. >> > I'm not seeing how to convert the float to an int here. >> > Thanks for your help! >> > >> > Micheal >> > >> > >> > _______________________________________________ >> > chuck-users mailing list >> > chuck-users(a)lists.cs.princeton.edu >> > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >> > >> _______________________________________________ >> chuck-users mailing list >> chuck-users(a)lists.cs.princeton.edu >> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >> > > > -- > Jean Menezes da Rocha > _______________________________________________ > chuck-users mailing list > chuck-users(a)lists.cs.princeton.edu > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >

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Conversion float to int using SndBuf
by Mícheál Ó Catháin 21 Jan '20

21 Jan '20

Hi What is the best way to convert a float to int in the following please? //I want to set myBuf.pos to a percentage of myBuf.samples()... //Start playing at say 40% through the total number of samples. 40.0 => float pctPosInit; pctPosInit/100*myBuf.samples() => myBuf.pos; This throws the error argument types don't match. I'm not seeing how to convert the float to an int here. Thanks for your help! Micheal

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New Electroacoustic Album in SuperCollider; ChucK; Csound; NI Reaktor; AudioMulch & 600 aprox VST`s.
by maria p cruz 17 Jan '20

17 Jan '20

My husband, new Electroacoustic Album in SuperCollider; ChucK; Csound; NI Reaktor; AudioMulch & 600 aprox VST`s. https://joseignacioquevedogomeziannisxenakis.bandcamp.com/releases Maria

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Array of SndBufs at different rates
by Matthew.Noone 10 Jan '20

10 Jan '20

Hi all, I'm trying to figure out the easiest way to setup an array of the same SndBuf playing at different rates. I'm using a Gong sample. Playing that back at different rates to make basic melodic patterns. I can make a random function but I don't know who I can set an array of rates which I can then randomise. Any ideas? Here is my existing code with random function. (I tried writing an array at the start but not sure how to call that?) Sorry for such an easy question... MJ //Sndbuf //4 => int gongs; //[.25, 0.5, 1.0, .25] @=> float rates[];//array of possible rates (changing will change harmony) //program SndBuf mySound => Delay d => JCRev rev => Gain g => dac; 0.8 => rev.mix; //delay and rev setup d => Gain feedback => d; while (true) { .02 => g.gain; me.dir()+"Samples/MotherGong.wav" =>mySound.read; 0 =>mySound.pos; Math.random2f ( 20.1, 22.01 ) => mySound.rate; Math.random2f( 0.3, 0.5) ::second => d.max; Math.random2( 30, 70) ::ms =>d.delay; Math.random2f( 0.3, .8) => feedback.gain; 0.50 ::second => now; } Dr. Matthew James Noone Sarode Artist & Irish Research Council Postdoctoral Fellow Irish World Academy of Music and Dance University of Limerick

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