[chuck-users] one sample block size vs demand rate

[Michael Clemow]

FWIW, Ronni, you can actually change the block size in SC to 1 sample.  It takes a little bit of under-the-hood tweaking but a buddy of mine in grad school did some interesting things in SC using this technique.  His project had to do with wavelet resynthesis, which required sub-sample calculations.

http://doc.sccode.org/Reference/StartupFile.html

Anyway, I get a weird feeling when people start to talk about the differences between audio programming systems in these terms.  Whenever this performance comparison conversation starts (and it happens every fall ;) I always feel like it's a little off-base or simplistic or something.  I think that's because the *major* differences between these systems are philosophical/architectural and not necessarily practical (in a general-purpose sense).

For instance, there's a much closer coupling of program flow and synthesis for Chuck than SC.  SC's language is slower, interpreted, much more expressive (and complicated) as a language, and is designed to hide the fact that it's main purpose is sending configuration and control messages to the node-based, highly performance-optimized sound server.  Chuck, on the other hand, is designed to be fast enough to allow you to directly control the synthesis process during program execution.  Control rates are determined by your own code and are, therefore, arbitrary.  IMHO, Chuck's main evolution of these types of systems is the concurrency model, which is really brilliant.  The closest thing I've ever seen to Chuck's model is that of Google's Go language, which is very young still also.

As with all things, it's a trade-off.  Each system does certain types of things better than others.  If you add patching languages like Pd and Max to the conversation, it gets even more complicated.  The answer to which system to use will always depend on the task at hand, your familiarity with the systems, and your personal preferences.  

More specifically, Chuck is a great language to experiment with single-sample block algorithms that you intend to then implement in C as a UGen (which could be added to any of the systems).  

</rant>  Bored at work.  Sorry.  :)

What is it that you're trying to do with single sample intervention?

All best,
Mike


-- 
Michael Clemow

http://michaelclemow.com
http://abattoirprojects.com


On Friday, August 31, 2012 at 11:05 AM, ronni montoya wrote:

> Hi guys, before we were talking about the differences between sc3 and
> chuck , and people said that in sc3 you cannot do one sample
> manipulation but i just discovered that sc3 has a group of ugens
> called "demand ugens" that allows to do one sample manipulation(one
> sample block).
> 
> Do you guys know about this?
> 
> What do you think about the posibilities of one sample block size in
> chuck vs demant rate posibilities in sc3? Are they both equivalent?
> or can you make things that you cannot do with the other?
> 
> 
> thanks in advance.
> 
> 
> R.
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