Re: [music-dsp] R: R: R: Trapezoidal integrated optimised SVF v2

2013-11-13 Thread Andrew Simper
Thanks to Clemens for spotting an error in the implementation of the skf, it was a copy and paste error from the svf version where I didn't update the denominator in the code to be the correct one solved for. I've updated it now: http://cytomic.com/files/dsp/SkfLinearTrapOptimised2.pdf All the be

Re: [music-dsp] R: R: R: Trapezoidal integrated optimised SVF v2

2013-11-13 Thread Risto Holopainen
I've been following this zdf discussion with some interest, though it is unfortunately a bit over my head. I'll take a look at Vadim's book for starters and see if that makes any sense. Any suggestions for learning the basics of electronic circuits would also be welcome. > My concern is what wil

[music-dsp] R: R: R: Trapezoidal integrated optimised SVF v2

2013-11-13 Thread Marco Lo Monaco
Agreed 100% Vadim. Only a human can detect the design principle, thus focusing on the core points. Moreover the engineer must also know why that gear is so good sounding and then investigate on its history. I remember the fuzz face was very difficult to produce because of the germanium transis

[music-dsp] R: R: R: Trapezoidal integrated optimised SVF v2

2013-11-10 Thread Marco Lo Monaco
Hi Andrew, you misinterpreted my words :) I know you are not "intentionally" hiding anything. The computation are intrinsically hidden themselves because of the nature of your approach (solving directly the differential eqs instead using the ABCD matrixes). All the coeffs involved in input, output