29 Apr
2010
29 Apr
'10
4:18 p.m.
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.
bis denn! martin