run copy_syn error

[KnowBetterHelps]

when I run demo_copy_synthesis_lossless.py or demo_copy_synthesis_low_dim.py or 2_batch_wave_generation.py I always get the following error: A value in x_new is above the interpolation range

Analysing.....................................................
Extracting epochs with REAPER...
Residual symmetry: P:2120.314453 N:1149.693604 MEAN:0.606241
Inverting signal
Synthesising.................................................
Traceback (most recent call last):
File "./demo_copy_synthesis_low_dim.py", line 74, in
v_syn_sig = mp.synthesis_from_compressed(m_mag_mel_log, m_real_mel, m_imag_mel, v_lf0, fs, fft_len)
File "/home/huawei/magphase-master/src/magphase.py", line 530, in synthesis_from_compressed
m_real_mel = f_intrp_real(np.arange(ncoeffs_mag))
File "/usr/local/lib/python2.7/dist-packages/scipy/interpolate/polyint.py", line 79, in call
y = self._evaluate(x)
File "/usr/local/lib/python2.7/dist-packages/scipy/interpolate/interpolate.py", line 498, in _evaluate
out_of_bounds = self._check_bounds(x_new)
File "/usr/local/lib/python2.7/dist-packages/scipy/interpolate/interpolate.py", line 528, in _check_bounds
raise ValueError("A value in x_new is above the interpolation "
ValueError: A value in x_new is above the interpolation range.

and I found that labs_var_rate/ file is always empty, can you give me some help? ^_^

[felipeespic]

Hi, I am not having any problems. I think that you are using an old version of MagPhase. So, please download the current version from the master branch.

Also, upgrade the required python packages to their latest versions, just in case.

Let me know how it goes. Thanks

[mikenewman1]

Hi Felipe,
I hit the same problem. I have absolutely the latest MagPhase from master, and all my packages appear to be up-to-date.

Happy to help look into this. Let me know what I can do.

BTW the lossless synthesis ran without a problem

[mikenewman1]

If I hack around this by editing magphase.py, it runs to completion with no obvious harm to the synthesized file

-    f_intrp_real = interpolate.interp1d(np.arange(ncoeffs_comp), m_real_mel, kind='nearest', fill_value='extrapolate')
-    f_intrp_imag = interpolate.interp1d(np.arange(ncoeffs_comp), m_imag_mel, kind='nearest', fill_value='extrapolate')
-    
+    f_intrp_real = interpolate.interp1d(np.arange(ncoeffs_comp), m_real_mel, kind='nearest', fill_value=0.0, bounds_error=False)
+    f_intrp_imag = interpolate.interp1d(np.arange(ncoeffs_comp), m_imag_mel, kind='nearest', fill_value=0.0, bounds_error=False)
+

[felipeespic]

Hi Mike,

I am pretty sure that it is because your SciPy package is not updated. Update it with pip install scipy --upgrade

Let me know how it goes. Thanks

[mikenewman1]

Sorry, that does not fix it (though you are right I did not have the latest version)
I tried the same with the other packages and still no luck.

[mikenewman1]

FYI I was able to make this error go away by running on a (different) machine, that was configured for building with Merlin (in particular after running pip install -r requirements.txt in the merlin directory, but also other stuff)
But I don't know which package did the trick....

[felipeespic]

@mikenewman1 , I think it is any of these ones: numpy, scipy, or scikit-learn. Try updating (pip install <package> --ugrade) each of these.