[chuck-users] Why is my code doing this?

[JP Yépez]

Hey Forrest,

Haven't really had a chance to take a closer look at the code, but from your description, I think Chubgraphs might be able to help you out with this. If you haven't tried them out, Chubgraphs have a built-in outlet, and if you connect all AdditivePartials to it, you should be able to simply connect/disconnect the Additive instance, which takes care of all the partials. Here's a bit of useful info on them:

http://chuck.stanford.edu/extend/#chubgraphs <http://chuck.stanford.edu/extend/#chubgraphs>

Chubgraphs are a good way to create your own flexible classes that can be part of audio chains, so maybe this is something like what you have in mind?

Hope it helps!

JP

> On 4/01/2019, at 4:44 PM, Forrest Cahoon <forrest.cahoon at gmail.com> wrote:
> 
> Thanks! This was totally evading me.
> 
> So even though I haven't called b.play(), its AdditivePartials will make sound when time advances -- that's what I was missing.
> Another option that works is to set the gain of each partial to 0 in init and at the end of play().
> 
> What I would really like is be able to write these classes in some way that I can connect the signal chain using the Additive object, like
> 
> Additive a => NRev r => dac;
> 
> which would somehow call a method on a to hook up the signal chain to all the partials behind the scenes. Is that at all possible?
> Or failing that, some other way I can specify the signal chain for individual Additive objects outside the class (e.g. a connectSignal() method)?
> 
> Forrest
> 
> 
> 
> On Thu, Jan 3, 2019 at 1:30 AM Joel Matthys <jwmatthys at gmail.com <mailto:jwmatthys at gmail.com>> wrote:
> Hey Forrest.
> 
> I messed around for a long time with your code before it finally struck me:
> 
> You connected your AdditivePartials to the dac too soon!
> 
> In your code you connect this=>dac when the AdditivePartials are instantiated, but you don't set gain and freq until you spork~ play.
> 
> So when you pass the first 0.5::second => now, Additive b is sounding at full gain on default settings.
> 
> If you move this => dac from the init function to the top of the play function, all is well. You should probably add this =< dac at the end of your play function too.
> 
> Joel
> 
> Sent from Mailspring <https://link.getmailspring.com/link/1546499923.local-a2481a69-52f7-v1.5.4-1d923cf4@getmailspring.com/0?redirect=https%3A%2F%2Fgetmailspring.com%2F&recipient=Y2h1Y2stdXNlcnNAbGlzdHMuY3MucHJpbmNldG9uLmVkdQ%3D%3D>, the best free email app for work
> On Jan 2 2019, at 10:02 pm, Forrest Cahoon <forrest.cahoon at gmail.com <mailto:forrest.cahoon at gmail.com>> wrote:
> Sorry, I tried to come up with a more hello-world example of the problem I'm experiencing, but I really don't know what's going on so I have to post something a bit complex.
> 
> My ChucK code is here:
> https://gist.github.com/forrcaho/21acdb25e05a8620f56dba591cd52ed5 <https://link.getmailspring.com/link/1546499923.local-a2481a69-52f7-v1.5.4-1d923cf4@getmailspring.com/1?redirect=https%3A%2F%2Fgist.github.com%2Fforrcaho%2F21acdb25e05a8620f56dba591cd52ed5&recipient=Y2h1Y2stdXNlcnNAbGlzdHMuY3MucHJpbmNldG9uLmVkdQ%3D%3D>
> 
> I have a class called AdditivePartial and one called Additive which contains an array of AdditivePartial objects.
> 
> The Additive objects play method sporks the play method for all its partials.
> 
> The first Additive object I create appears to ignore the noteAmplitude I have set; it is pegged and clipping. That is, until the second Additive object is sporked, at which point the first object suddenly "remembers" it's noteAmplitude.
> 
> I've looked at the output in Sonic Visualiser and that confirmed this is what's happening, at least on my linux machine.
> 
> Can anyone reproduce this behavior, or does it work for you? If you can reproduce it, what the heck is going on?
> 
> Forrest
> 
> 
> 
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