1 Dec
2010
1 Dec
'10
11:16 a.m.
On Wednesday, December 01, 2010 02:46:10 fons(a)kokkinizita.net wrote:
On Wed, Dec 01, 2010 at 10:33:17AM +1100, Erik de
Castro Lopo wrote:
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
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).