Lines Matching refs:chn
471 int chn;
484 for (chn=0;chn<channels;chn++)
486 x[chn][2] = x[chn][1];
487 x[chn][1] = x[chn][0];
489 y[chn][2] = y[chn][1];
490 y[chn][1] = y[chn][0];
492 x[chn][0] = samples[i*channels+chn];
493 y[chn][0] = a0*x[chn][0] + a1*x[chn][1] + a2*x[chn][2]
494 - b1*y[chn][1] - b2*y[chn][2];
495 samples[i*channels+chn] = y[chn][0];