Problems with core.py/python3

I’ve got small error in ipython while using second example. Simple ‘xrange to range’ change fixed it.

In [19]:y_h, y_p = librosa.effects.hpss(y)

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-19-c68f0c36b61f> in <module>()
----> 1 y_h, y_p = librosa.effects.hpss(y)

/usr/local/lib/python3.4/site-packages/librosa/effects.py in hpss(y)
     36 
     37     # Compute the STFT matrix
---> 38     D = librosa.core.stft(y)
     39 
     40     # Decompose into harmonic and percussives

/usr/local/lib/python3.4/site-packages/librosa/core.py in stft(y, n_fft, hop_length, win_length, window, center, dtype)
    356                                       * stft_matrix.itemsize))
    357 
--> 358     for bl_s in xrange(0, stft_matrix.shape[1], n_columns):
    359         bl_t = min(bl_s + n_columns, stft_matrix.shape[1])
    360 

NameError: name 'xrange' is not defined

[vmirnv]

Since I have this error again (now on EC2 Ubuntu) and this post is on Google’s top, here’s solution for missing mp3 library: sudo apt-get install libav-tools

[bmcfee]

@Kamatio Please do not add new questions to closed discussion threads about other topics.

Your problem appears to be due to not setting the value of hop_length; try saying hop_length = 512 before that call.