firfilt_p

 firfilt_p(fil_par,cur_branch,x,y,len)
      struct fir_filterspec *fil_par;
      int     cur_branch;
      float   *x, *y;
      int     len;

• Filterparameters.
• Current branch: 0 or 1; lowpass or highpass.
• Input data vector.
• Output data vector.
• Vector length.