FIR Blueing Filter

blueFIR.py

# FIR filter coefficients for FIR to turn white noise into blue (3dB / octave increase)
# pretty good approximation (can probably safely truncate latter coeffs for shorter FIR) 

b = np.array([ 
                  0.65574456   , -0.38378737   , -0.053818095  , -0.024852204  ,
                  -0.019328524  , -0.016130449  , -0.013568251  , -0.011437699  ,
                  -0.0096596723 , -0.0081750885 , -0.0069352004 , -0.0058993955 ,
                  -0.0050338087 , -0.0043101989 , -0.0037050145 , -0.0031986151 ,
                  -0.0027746217 , -0.0024193749 , -0.0021214835 , -0.0018714476 ,
                  -0.0016613448 , -0.0014845678 , -0.0013356065 , -0.0012098652 ,
                  -0.0011035114 , -0.0010133485 , -0.00093671048, -0.00087137371,
                  -0.00081548354, -0.00076749295, -0.00072611154         
      ])