Question regarding filters, performance & polyphony control

teking66
New Member

Posts: 35

Question regarding filters, performance & polyphony control Aug 3, 2014 17:29:38 GMT 1

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Post by teking66 on Aug 3, 2014 17:29:38 GMT 1

Regarding filters and performance, Is the SV Filter notorious for being CPU hungry?

If so, what filter would you folks recommend to use instead of it?

I have a synth that I'm building, and at the moment I have three Soundfont Oscillators followed by a Moog Filter on each.
Behind each Moog filter I have an SV Filter, but I have noticed that when the SV Filter are active I'm getting some really high spikes in CPU usage.
This got me to thinking that maybe I should ask the question here just to see if that is the case.

Something else, this is regarding Polyphony. Is there a way to maybe drop some voices, or control the number of voices that each Soundfont Ocsillator is sending out?
I know about the global polyphony control, but even with it set to six (6) voices the synth is still overloading the sound engine, which then causes the sound to start breaking up or even stopping all together. Would I need to use the VoiceWatchedBlocker module to accomplish this?

Oh, FYI I have this synth in SE 1.2 at the moment, it's currently setup in bot the 32-bit and 64-bit versions.
So, in the 64-bit version my choices of filters is pretty limited, just the stock filters and Rob's SDK3 modules are available to me there.
I'm starting to think that maybe I should recreate it in SE 1.1 for now, which would give me a lot more options regarding filter choice.

The saying; "Just play it, we'll fix it in the mix!".....kinda troubles me a bit.

KlangManipulation
Synthedit regular

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Posts: 245

Question regarding filters, performance & polyphony control Aug 3, 2014 19:09:10 GMT 1

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Post by KlangManipulation on Aug 3, 2014 19:09:10 GMT 1

mostly i use the se-moog filter in chain with hipass.
good filters a very rare for synthedit. i still use se1.1 because 1.2 isnt stable and there are some modules i need to build my stuff.
it will be very hard to use se1.2 because a lot of people like david haupt and chris kerry stopped developing modules and we only can hope someone rebuild this modules in 64bit.
i can rebuild alot of simple modules but filters or graphics are far away of my C++ skills.

www.klangmanipulation.de

teking66
New Member

Posts: 35

Question regarding filters, performance & polyphony control Aug 4, 2014 2:41:09 GMT 1

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Post by teking66 on Aug 4, 2014 2:41:09 GMT 1

Thanks KM, I'm going to check it out with the hipass filter and take the SV filter out just to see what happens and how it sounds.
I may try it with Rob's filter as well, just to see how the CPU usage goes there as well.

I too am hoping that someone may start creating additional modules for 64-bit as my C++ skills are all but nonexistent, though it is something I have been considering having a go at learning. Years ago I learned LISP, but it's also been years ago that I last used it. So, all of that knowledge is probably pretty close to gone from my head, which might work in my favor when I go to learn C++.

Edit: Oh, I meant to mention that I had originally started this project in SE 1.1, and I saved that version and made a copy that I have been editing in SE 1.2. My original 1.1 project isn't quite as fleshed out as the 1.2 version. But, it shouldn't take much work to get it up to the same point as I have it in 1.2, so that's probably what I will do at this point. Besides, that would just give me that much more experience with using SE, which can't be a bad thing in my book.

Last Edit: Aug 4, 2014 2:54:58 GMT 1 by teking66

The saying; "Just play it, we'll fix it in the mix!".....kinda troubles me a bit.