Lines Matching refs:ak
50 LSPs are used to encode the LPC filter coefficients {ak} for
53 direct quantisation of {ak}.
55 A(z) is a polynomial of order lpcrdr with {ak} as the coefficients.
76 To convert back to ak we just evaluate (1), "clocking" an impulse
78 {ak}.
403 void lsp_to_lpc(spx_lsp_t *freq,spx_coef_t *ak,int lpcrdr, char *stack)
405 /* float *ak array of LPC coefficients */
510 /* hard limit ak's to +/- 32767 */
514 ak[j-1] = (short)a;
522 void lsp_to_lpc(spx_lsp_t *freq,spx_coef_t *ak,int lpcrdr, char *stack)
524 /* float *ak array of LPC coefficients */
578 ak[j-1] = (xout1 + xout2)*0.5f;
