SynthMaker

iFFT osc

Archive · 2010 4 old posts

From the original SynthMaker forum (2004–2014), with its members’ names and dates.

TravisHuckins ·

I am building a synth using the iFFT osc that is in the analog modeling kit and there is this aliasing sound that plays along with the harmonics. If I set the harmonics to play only a sine wave it is even more noticeable. Is this aliasing caused by how the iFFT synthesizes or is there a way to remove it.

rl ·

MyCo's IFFT OSC use the iFFT to calculate a basic wave that will be read in realtime using two Float Array to Mem modules. You could try to use a Wave Table module instead (not tested). This will generate a mib-mapped wave table which will take care of the aliasing artefacts.

TravisHuckins ·

Could you post an example of this.

rl ·

this is what I meant:

but: after trying that for myself, SM becomes very unstable and crashes often. Maybe a 16k elements-array is too big for the wavetable module.

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