I am working on coice recognition study , i converted a voice data set to LSF (line spectrale frequency) by decoding file coded by amr-wb (G722.2) , i build a dataset with files of 16 vectors of ISF/LSF at each frame .
i used a python code well running for MFCC features for the same dataset in wav format ; but with the data set converted to LSf vectors i got the message when we start trainging and fit the GMMmmm model .
the error message :
base.py", line 469, in _do_forward_pass return logsumexp(fwdlattice[-1]), fwdlattice
IndexError: index -1 is out of bounds for axis 0 with size 0
