def wav2complex(filename):
fs, x_LR_cols = ss.from_wav(filename)<EOL>x = x_LR_cols[:,<NUM_LIT:0>] + <NUM_LIT>*x_LR_cols[:,<NUM_LIT:1>]<EOL>return fs,x<EOL>
Return a complex signal vector from a wav file that was used to store
the real (I) and imaginary (Q) values of a complex signal ndarray. 
The rate is included as means of recalling the original signal sample 
rate.

fs,x = wav2complex(filename)

Mark Wickert April 2014