#define BPF_N 101

float bpf[]={
  0.002174,
  0.003245,
  0.002147,
  0.001866,
  0.002764,
  0.000567,
  -0.001641,
  -0.000565,
  -0.002415,
  -0.005837,
  -0.003620,
  -0.002828,
  -0.006268,
  -0.002787,
  0.001963,
  -0.001234,
  0.001446,
  0.009200,
  0.005331,
  0.003521,
  0.011821,
  0.006951,
  -0.002015,
  0.005137,
  0.001828,
  -0.013390,
  -0.007058,
  -0.003273,
  -0.020458,
  -0.014321,
  0.001751,
  -0.012891,
  -0.009730,
  0.018993,
  0.008544,
  0.000534,
  0.035755,
  0.029074,
  -0.001192,
  0.030852,
  0.030983,
  -0.029834,
  -0.009550,
  0.011945,
  -0.081971,
  -0.082875,
  0.000423,
  -0.133526,
  -0.211778,
  0.182628,
  0.514906,
  0.182628,
  -0.211778,
  -0.133526,
  0.000423,
  -0.082875,
  -0.081971,
  0.011945,
  -0.009550,
  -0.029834,
  0.030983,
  0.030852,
  -0.001192,
  0.029074,
  0.035755,
  0.000534,
  0.008544,
  0.018993,
  -0.009730,
  -0.012891,
  0.001751,
  -0.014321,
  -0.020458,
  -0.003273,
  -0.007058,
  -0.013390,
  0.001828,
  0.005137,
  -0.002015,
  0.006951,
  0.011821,
  0.003521,
  0.005331,
  0.009200,
  0.001446,
  -0.001234,
  0.001963,
  -0.002787,
  -0.006268,
  -0.002828,
  -0.003620,
  -0.005837,
  -0.002415,
  -0.000565,
  -0.001641,
  0.000567,
  0.002764,
  0.001866,
  0.002147,
  0.003245,
  0.002174
};