Reaktor Trk 01 , something wrong with the filter

gentleclockdivider

So I am playing with the demo of trk-01 and there is def. something really wrong the filter
When set to 10 Kh z, the frequency is actually the half of it , 5 Khz
When set to max of 16 Khz , the frequency is actually 11 Khz

Weird , so I doubled the sampling rate to 88Kh and intead , the filter now sounds even worse .

Now it's 8Khz when the cutoff is set to max of 16 Khz
Trk-01 was released 7 years ago and nobody ever noticed this , not even an update ?

colB

Good catch.

The internal of the knob is doing a linear crossfade between 10Hz and 22000Hz

The audio processing code is using a logarithmic crossfade.

The audio code also clips to SR/2 while the knob code doesn't.

If you replace the crossfade in the knob code with the one from the audio code, it works properly.

Here's a pic showing the edit and the full breadcrumb trail to find both crossfades

EDIT: this fix is for the free 'kick' version, not the full version. The breadcrumb trail might be different in the full version. Not sure.