Lines Matching refs:chn
407 int chn;
420 for (chn=0;chn<channels;chn++)
422 x[chn][2] = x[chn][1];
423 x[chn][1] = x[chn][0];
425 y[chn][2] = y[chn][1];
426 y[chn][1] = y[chn][0];
428 x[chn][0] = samples[i*channels+chn];
429 y[chn][0] = a0*x[chn][0] + a1*x[chn][1] + a2*x[chn][2]
430 - b1*y[chn][1] - b2*y[chn][2];
431 samples[i*channels+chn] = y[chn][0];