Hi Achim,
wollscheid wrote:
Hi list.... has anyone written (or knows where to find...) a patch that does distorison and allows to vary its parameters?
Besides waveshaping / wavetable-lookup distortion, which provides the closest resemblance to analog distortion and has been discusses here already, there are also some other types. I would recommend trying out the following LADSPA plugins to get an idea of the different sounds:
$ listplugins | grep dist /usr/lib/ladspa/crossover_dist_1404.so: Crossover distortion (1404/crossoverDist) Foldover distortion (1213/foldover) Chebyshev distortion (1430/chebstortion) Pointer cast distortion (1910/pointerCastDistortion)
Google and perhaps the Music-DSP list could provide you with more detailed information about each of the techniques. Personally, I use [plugin~] and a combination of Crossover and Foldover distortion, but this results in a huge DC offset that needs to be corrected (from the Foldover plugin).
good luck, d.