Lines Matching refs:lpc
530 * @param lpc linear predictive coding coefficients
537 static void lspf2lpc(const float *lspf, float *lpc)
546 ff_acelp_lspd2lpc(lsp, lpc, 5);
549 lpc[i] *= bandwidth_expansion_coeff;
562 * @param lpc float vector for the resulting LPC
566 float *lpc, const int subframe_num)
581 lspf2lpc(interpolated_lspf, lpc);
584 lspf2lpc(curr_lspf, lpc);
586 lspf2lpc(q->prev_lspf, lpc);
655 static void postfilter(QCELPContext *q, float *samples, float *lpc)
668 lpc_s[n] = lpc[n] * pow_0_625[n];
669 lpc_p[n] = lpc[n] * pow_0_775[n];
695 float quantized_lspf[10], lpc[10];
774 interpolate_lpc(q, quantized_lspf, lpc, i);
775 ff_celp_lp_synthesis_filterf(formant_mem, lpc,
781 postfilter(q, outbuffer, lpc);