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cabal
2005 Nov 29
2
cheb_poly_eva using Clenshaw's recurrence formula
Hi,
After reading the paper entitled "The Computation of Line Spectral
Frequencies Using Chebyshev Polynomials", P. Kabal and R.
Ramachandran, IEEE Trans. on ASSP, Vol. 34, No. 6, December 1986, I
rewrite the function cheb_poly_eva in lsp.c using the Clenshaw's
recurrence formula, as described, for example, in Numerical Recipes in
C, Second Edition (5.5 and 5.8) :
static float cheb_poly_eva(spx_word32_t *coef, fl...