October 2015 - chuck-users - lists.cs.princeton.edu

Re: [chuck-users] keyboard fail
by David Loberg Code 09 Nov '15

09 Nov '15

Spencer and Bob, The problem is not exclusively an El Capitan issue. It was already happening in Yosemite before she upgraded. We have tried other device numbers. If it is a correct device number, it will open the keyboard but not receive data. If it is an incorrect device number, it gives the 'couldn’t open' response. (As I indicated, we also tried connecting an external USB keyboard.) davd Fra: Bob Bob <estecorreoesdebobi(a)gmail.com> Emne: Re: [chuck-users] keyboard fail Dato: 31. oktober 2015 01:10:39 GMT-4 Til: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> Svar til: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> I've hesitated to update to el capitan because a lot of people have been having issues. I also have the latest MacBook pro but 15" and everything works so far. 2015-10-28 19:06 GMT-06:00 Spencer Salazar <spencer(a)ccrma.stanford.edu>: Hi David, I will test this on my end also but some times an OS version update will introduce "ghost" HID's, especially keyboards or trackpads, that can be opened but do not generate data. This has happened a few times before. The way to check is to change the kbNum and see if using a different number (1, 2, 3, etc.) produce data. You only need to try this until you see "couldn't open keyboard #" for whichever number after 0, which means you've exhausted the list of things ChucK thinks is a keyboard. Otherwise this could be a new issue specific to El Capitan :( spencer On Wed, Oct 28, 2015 at 11:16 AM, David Loberg Code <d.loberg.code(a)wmich.edu> wrote: I have a student with a MacBook Pro (Retina, 13", early-2015). She was on Yosemite with latest ChucK build; now on El Capitan with the ChucK beta build (1.3.5.2 beta). The same problem happened in both builds. She can open the keyboard with Hid. It will successfully pull the kb.name and print it. However, it won’t detect any other activity from the keyboard. It gets stopped at kb=>now; and won’t go any further. We have tried an external USB keyboard too, and it produces the same problem. Anyone else have this happen OR have a cure? thanks, davd David Loberg Code Western Michigan University code(a)wmich.edu Hid kb; HidMsg kbMsg; 0 => int kbNum; kb.openKeyboard( kbNum ) => int kbAvailable; if ( kbAvailable == 0 ) me.exit(); <<< "keyboard '", kb.name(), "' ready" >>>; while (true) { // hangs up waiting for kb=>now event kb => now; while(kb.recv(kbMsg)) { if (kbMsg.isButtonDown()) { kbMsg.key => int keyNum; <<< "#", keyNum >>>; } //end button down } // end while hid.recv } // end while(true) davd David Loberg Code School of Music Western Michigan University 1903 W Michigan Ave Kalamazoo, MI 49008-5434 code(a)wmich.edu

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keyboard fail
by David Loberg Code 31 Oct '15

31 Oct '15

I have a student with a MacBook Pro (Retina, 13", early-2015). She was on Yosemite with latest ChucK build; now on El Capitan with the ChucK beta build (1.3.5.2 beta). The same problem happened in both builds. She can open the keyboard with Hid. It will successfully pull the kb.name and print it. However, it won’t detect any other activity from the keyboard. It gets stopped at kb=>now; and won’t go any further. We have tried an external USB keyboard too, and it produces the same problem. Anyone else have this happen OR have a cure? thanks, davd David Loberg Code Western Michigan University code(a)wmich.edu Hid kb; HidMsg kbMsg; 0 => int kbNum; kb.openKeyboard( kbNum ) => int kbAvailable; if ( kbAvailable == 0 ) me.exit(); <<< "keyboard '", kb.name(), "' ready" >>>; while (true) { // hangs up waiting for kb=>now event kb => now; while(kb.recv(kbMsg)) { if (kbMsg.isButtonDown()) { kbMsg.key => int keyNum; <<< "#", keyNum >>>; } //end button down } // end while hid.recv } // end while(true)

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optimize memory usage when calling a large number of functions
by Jean Menezes da Rocha 16 Oct '15

16 Oct '15

Hello, I am writing a program that stores a large number of objects in the memory (thousands of), and then calls a "play" method from each one. As it goes playing, RAM usage increases drastically and a weird lag/clicking happens. Is there a possible method to clear memory (perhaps by discarding objects already played) while the script is in execution? Is there any alternative when calling a large number of functions over short periods of time? For the sake of example, take this lame pseudocode: class Foo { int fooX; float fooY; int fooZ; string fooBla; string fooBlu; fun void set(int x, float y, int z, string bla, string blu) { x => fooX; y => fooY; z => fooZ; bla => fooBla; blu => fooBlu; } fun void play() { SinOsc s => Gain g => dac; if ( x > 2 ) { fooY * x => s.freq; } else { if ( z < 4 ) { fooY * z => s.freq; } else { fooY => s.freq; } } 0.5 => g.gain; if ( bla == "fast" ) { 10::ms => now; } else { if ( bla == "slow" ) { 500::ms => now; } else { 200::ms => now; } } } (now imagine a function that sets thousands of Foo objects, stores them into an array and afterwards iterate through said array, calling .play() function for each item. at this point things become *very* slow because of too many objects filling up the memory). Even using --silent, the script is eventually sluggish because memory still is filled up. I hope you can point me to the right direction! -- Jean Menezes da Rocha Compositor Professor -- Faculdades Est Mestre e Doutorando em Composição pela Universidade Federal da Bahia

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build for OSX 10.11 (El Cap)
by Althea Pergakis 14 Oct '15

14 Oct '15

Hello, The executable don't work in El Cap and I am too broke for that $99 Apple Developer License. Does anyone have a build that will install/have a way around it? Thanks! -- *Althea Pergakis <http://aepergakis.com/>* *Digital Fabrication Assistant, School of Arts, Media and Engineering <http://ame.asu.edu/>* *Tutor, School of Arts, Media and Engineering <http://ame.asu.edu/>* *Library Assistant, Tempe Public Library <http://tempe.gov/library>* *Co-Director, LORKAS <http://lorkas.org/>* *Co-Chair, Digital Culture Underground <https://www.facebook.com/groups/DigitalCultureUnderground/>* (480)560-8408

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MAUI for Linux
by Mitch Kaufman 14 Oct '15

14 Oct '15

Hi list, I may be a bit out of the loop but I wanted to ask about the status of MAUI on the Linux platform. I've seen posts from 2008 asking about it but nothing since. Is this available and if not what are the general options available for easy manipulation of variables in real time? A time variable specification in a file would be great as well. Thanks. Regards, Mitch Kaufman

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Very odd NSExtension error
by Diana Siwiak 14 Oct '15

14 Oct '15

Hi users, I finally made the switch to Yosemite last week, and ChucK isn't too happy. The following error appears in the Console Monitor seemingly random-like. I cannot find a common action that causes this, so it'll be tough to recreate. However, it has yet to occur on the built-in example files, only user-created files. Google says it's an Apple "predicate warning from text view". The error makes ChucK unusable when it does surface, which is quite annoying. My chuck --probe output is as expected (built-in output/inputs and Soundflower). I am running a 2010 Macbook Pro with Yosemite 10.10.5. There are no external sound cards or external devices. My chuck version: 1.3.5.1 (chimera), downloaded as an executable from the ChucK website. I've been a solid Chuck (mis-)user since 2007! _________________________*MYSTERY APPLE? ERROR*_________________________ 2015-10-14 12:38:42.572 miniAudicle[2996:32194] _NSExtensionIsSafeExpressionForObjectWithSubquerySubstitutions: Expression considered unsafe: SUBQUERY($extensionItem.attachments, $attachment, (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.adobe.pdf") AND (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.image")) 2015-10-14 12:38:42.573 miniAudicle[2996:32194] _NSExtensionIsSafeExpressionForObjectWithSubquerySubstitutions: Operand expression not safe to execute SUBQUERY($extensionItem.attachments, $attachment, (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.adobe.pdf") AND (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.image")) 2015-10-14 12:38:42.573 miniAudicle[2996:32194] _NSExtensionIsSafeExpressionForObjectWithSubquerySubstitutions: Expression considered unsafe: SUBQUERY($extensionItem.attachments, $attachment, (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.adobe.pdf") AND (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.image")).@count 2015-10-14 12:38:42.573 miniAudicle[2996:32194] _NSExtensionIsSafeExpressionForObjectWithSubquerySubstitutions: Expression considered unsafe: SUBQUERY(extensionItems, $extensionItem, $extensionItem.attachments.@count == 1 AND SUBQUERY($extensionItem.attachments, $attachment, (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.adobe.pdf") AND (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.image")).@count == 0) 2015-10-14 12:38:42.573 miniAudicle[2996:32194] _NSExtensionIsSafeExpressionForObjectWithSubquerySubstitutions: Operand expression not safe to execute SUBQUERY(extensionItems, $extensionItem, $extensionItem.attachments.@count == 1 AND SUBQUERY($extensionItem.attachments, $attachment, (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.adobe.pdf") AND (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.image")).@count == 0) 2015-10-14 12:38:42.574 miniAudicle[2996:32194] _NSExtensionIsSafeExpressionForObjectWithSubquerySubstitutions: Expression considered unsafe: SUBQUERY(extensionItems, $extensionItem, $extensionItem.attachments.@count == 1 AND SUBQUERY($extensionItem.attachments, $attachment, (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.adobe.pdf") AND (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.image")).@count == 0).@count 2015-10-14 12:38:42.574 miniAudicle[2996:32194] NSExtensionIsPredicateSafeToExecuteWithObject: NSPredicate considered unsafe: SUBQUERY(extensionItems, $extensionItem, $extensionItem.attachments.@count == 1 AND SUBQUERY($extensionItem.attachments, $attachment, (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "com.adobe.pdf") AND (NOT ANY $attachment.registeredTypeIdentifiers UTI-CONFORMS-TO "public.image")).@count == 0).@count == 1 _____________________________________________________________________ Any assistance with this would be much appreciated!

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how to mickey-mouse a 'switch' statement into chuck?
by Forrest Curo 13 Oct '15

13 Oct '15

Since switches have so far not been included, is there a way around this? An array of Events? An array of functions, either numbered or associative? How to declare and call such an array? Something else?

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Does a working FluidSynth chugin exist?
by Pietari Seppänen 08 Oct '15

08 Oct '15

Hi! The Extend section of the Chuck site describes a FluidSynth chugin for using soundfonts. CCRMA does have code for this chugin (https://github.com/ccrma/chugins/tree/master/FluidSynth), which I managed to compile for Windows after many, many hours of effort. Unfortunately, I get a chuck_dl error 126 when Chuck tries to load the file (I had to change the message level), so either my frankly ridiculous compiling process broke it or the code doesn't work right now. Does anyone have this chugin in working form? Regards, Pietari Seppänen

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ChuckSound usage
by Forrest Curo 06 Oct '15

06 Oct '15

Paul Batchelor mentioned this in a recent thread; it's a chugin that allows for the use of csound instruments inside chucK. his article about it is here: http://csoundjournal.com/issue21/chuck_sound.html and it can be picked up here: https://github.com/PaulBatchelor/ChuckSound . A question that came up in the course of using it: If I use one csd file containing several instruments (and some global set-up instructions in the header section) can I use one shred to play multiple notes on multiple csound instruments in that file simultaneously? -- or do I need multiple shreds? -- and can they share the same header global variables?

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WvOut2 disregards Pan2 information
by Jean Menezes da Rocha 05 Oct '15

05 Oct '15

Hello, guys, I am trying to output a stereo .wav file using rec-auto-stereo.ck <http://chuck.cs.princeton.edu/doc/examples/basic/rec-auto-stereo.ck> (retrieved from the ChucK examples). Nonetheless, the exported file completely disregards instructions passed by Pan2, and every sound is panned to the center. If I run my script standalone (passing output to dac instead of WvOut2) the pan is correctly played. Take this test script: SinOsc s => Pan2 pan => dac; while ( true ) { Math.random2f( 0.125, 0.5 ) => s.gain; Math.random2f( 63, 1500 ) => s.freq; Std.randf() => pan.pan; Math.random2f( 40, 400 )::ms => now; } If I run it alone, it is correctly panned. If I run it against rec-auto-stereo.ck, the sound I hear from dac is duly panned, but in the resulting .wav file Pan2 information is discarded and everything goes to the center. Do anyone know what am I missing? Thanks in advance! -- Jean Menezes da Rocha Compositor Professor -- Faculdades Est Mestre e Doutorando em Composição pela Universidade Federal da Bahia

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