Hallo, Derek Holzer hat gesagt: // Derek Holzer wrote:
just out of curiosity, since I don't have these abs in front of me, do they work with oversampling or with bandwidth-limited wavetables? The LADSPA BLOP oscillators do it very efficiently with wavetables, more efficiently than Miller's oversampling strategy, and I used them on Linux with [plugin~] very successfully. Also, does the square wave do Pulse Width Modulation?
You could also apply the antialiasing strategy of the last chapter in Miller's book ("transition splicing"). I wrapped this up into the abstractions splicetrans~.pd and trapez~.pd which are available in the list archive. They are cheap, sound really good to my ears - and they can be pw-modulated with audio signals, if you want.
They only replace jumps in a signal as in a square wave with band limited transitions, and pass corners as in a triangle wave unchanged. But that's not too dangerous, as corners are rather harmless in regard to aliasing.
Ciao
Frank Barknecht Do You RjDj.me? _ ______footils.org__