On Sun, Aug 31, 2014 at 01:34:59PM +0100, W.Boeke wrote: > As an example of attempts to recreate digitally a famous component > from the past I would take the Moog 3-stage lowpass filter. This was > build using diodes where their non-linearity was exploited in a > careful way, yielding a warm, rich sound. Numerous attempts have > been made to do this digitally, resulting in very complicated and > CPU-intensive algorithms.
The famous Moog 'ladder filter' has 4, not 3 stages, and doesn't use diodes but transistor pairs as a non-linear impedance. The result is similar to a tanh(x) function in each stage. It doesn't take very complicated code nor excessive CPU. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow) _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
