Lines Matching defs:ac
151 opus_val32 ac[5];
182 _celt_autocorr(x_lp, ac, NULL, 0,
187 ac[0] += SHR32(ac[0],13);
189 ac[0] *= 1.0001f;
194 /*ac[i] *= exp(-.5*(2*M_PI*.002*i)*(2*M_PI*.002*i));*/
196 ac[i] -= MULT16_32_Q15(2*i*i, ac[i]);
198 ac[i] -= ac[i]*(.008f*i)*(.008f*i);
202 _celt_lpc(lpc, ac, 4);
