Re: [LAD] Harmonic generator and transfer function

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To: <linux-audio-dev@...>
Date: Tuesday, November 30, 2010 - 11:33 pm

Andrew Gaydenko wrote:

> How does Steve Harris' Harmonic generator LADSPA plugin work? I mean relation

This can be done with waveshaping.

If your source is a sinewave you can run it's samples, x [n],
through a polynomial function:

y [n] = P (x [n])

and there is a way to calculate the required polynomial P
using Chebyshev polynomials.

I suspect that if you google for "waveshaping chebyshev" you
will find a more complete exposition than what I can drag up
from the depths of my memory.

Erik
--
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Erik de Castro Lopo
http://www.mega-nerd.com/
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Messages in current thread:
[LAD] Harmonic generator and transfer function, Andrew Gaydenko, (Tue Nov 30, 1:51 pm)
Re: [LAD] Harmonic generator and transfer function, Erik de Castro Lopo, (Tue Nov 30, 11:33 pm)
Re: [LAD] Harmonic generator and transfer function, Andrew Gaydenko, (Wed Dec 1, 10:16 am)
Re: [LAD] Harmonic generator and transfer function, Andrew Gaydenko, (Wed Dec 1, 12:13 pm)
Re: [LAD] Harmonic generator and transfer function, Andrew Gaydenko, (Wed Dec 1, 2:21 pm)
Re: [LAD] Harmonic generator and transfer function, Andrew Gaydenko, (Tue Nov 30, 3:35 pm)