[PD] Problems Following Floss "Generating Waveforms" Article
mnb at martin-brinkmann.de
Thu Apr 29 16:18:50 CEST 2010
Alex Lucas wrote:
> there doesn't seem to be
> any visible clipping on the table. The audible clipping was present across
> the frequency range but changing the multiplication on the phasor~ to 2048
> has solved the problem.
it is not so much clipping, but a discontinuity in the waveform, which
produces the unwanted distortion. sinesum creates not exactly 1 cycle
of the waveform, but also extra samples for the tabread4-interpolation.
this is hardly visible (and audible) with big tables/low frequencys, but
easiely visible with a small table (sinesum 40 1 for example), you can
see that the waveform does not start and end at 0.
More information about the Pd-list