Lines Matching defs:noise
125 void filtLP(const FIXP_DBL *syn, FIXP_PCM *syn_out, FIXP_DBL *noise,
131 tmp = fMultDiv2(noise[i], filt[0]); // Filt in Q-1.16
133 tmp += fMultDiv2((noise[i - j] + noise[i + j]), filt[j]);
152 FIXP_DBL *noise, *noise_in;
158 noise = noise_buf + L_FILT; // L_FILT = 12 delay of upsampling filter
247 /* prevent that noise calculation below reaches into not defined signal
320 /* calculate noise based on voiced pitch */
362 /* substract from voiced speech low-pass filtered noise */
366 filtLP(&syn[i_subfr - L_SUBFR], &synth_out[i_subfr], noise,
396 * signal dynamic is higher than the LPC noise shaping.
504 * This algorithm shapes temporally the spectral noise between
505 * the two spectral noise represention (FDNS_NPTS of resolution).
506 * The noise is shaped monotonically between the two points
517 * \param bLpc2Mdct flags control lpc2mdct conversion and noise shaping.
845 * \param inf_mask pointer to noise mask.
945 /* Obtain r[] vector by combining the quant[] and noise[] vectors */
981 /* Fill all 8 consecutive zero coeffs with noise */
993 0) { /* noise filling for last "band" with less than 8 bins */
1062 /* TCX noise level */