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Lines Matching defs:ac

542             opus_val32 ac[LPC_ORDER+1];
545             _celt_autocorr(exc, ac, window, overlap,
549             ac[0] += SHR32(ac[0],13);
551             ac[0] *= 1.0001f;
556                /*ac[i] *= exp(-.5*(2*M_PI*.002*i)*(2*M_PI*.002*i));*/
558                ac[i] -= MULT16_32_Q15(2*i*i, ac[i]);
560                ac[i] -= ac[i]*(0.008f*0.008f)*i*i;
563             _celt_lpc(lpc+c*LPC_ORDER, ac, LPC_ORDER);