float filtercoeff[fir_size] = {
   1.8736997e-03,  2.2516311e-03,  2.4045409e-03,  2.1549095e-03,  
   1.3403787e-03, -1.1740689e-18, -1.4799579e-03, -2.3973508e-03, 
  -2.0109446e-03,  1.7021141e-18,  3.0891734e-03,  5.6679531e-03,  
   5.4015175e-03, -3.9791475e-18, -1.1704799e-02, -2.8796491e-02, 
  -4.7874230e-02, -6.3527038e-02, -6.9696196e-02, -6.1585637e-02, 
  -3.7509562e-02,  6.5966711e-18,  4.4315697e-02,  8.6165475e-02,  
   1.1604693e-01,  1.2687925e-01,  1.1604693e-01,  8.6165475e-02,  
   4.4315697e-02,  6.5966711e-18, -3.7509562e-02, -6.1585637e-02, 
  -6.9696196e-02, -6.3527038e-02, -4.7874230e-02, -2.8796491e-02, 
  -1.1704799e-02, -3.9791475e-18,  5.4015175e-03,  5.6679531e-03,  
   3.0891734e-03,  1.7021141e-18, -2.0109446e-03, -2.3973508e-03, 
  -1.4799579e-03, -1.1740689e-18,  1.3403787e-03,  2.1549095e-03,  
   2.4045409e-03,  2.2516311e-03,  1.8736997e-03};