On Wednesday, December 01, 2010 02:46:10 [email protected] wrote: > On Wed, Dec 01, 2010 at 10:33:17AM +1100, Erik de Castro Lopo wrote: > > and there is a way to calculate the required polynomial P > > using Chebyshev polynomials. > > Or even better: evaluate the Chebyshev polynomials directly on > the signal (this avoids loss of precision due to cancellation of > large nearly equal terms).
I need just Vout = Vin(a0 + a1*Vin + a2*Vin^2 + ... + aN*Vin^N) for given a0,..aN with limited N (a1..aN abs will be < 0.1). Say, we just recalculat samples' amplitudes directly. Is there any caveats in such direct transforming? And why do I need to use another (Chebyshev polynomials) way? Will I get HF hum? Please, direct my nose to an approriate reading! :-) Andrew _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
