@ptrblck I think it’s more like an error because the program is breaking down completely after this message.
Is this one error message? Or are there two?
Because of this:
/home/anaconda3/envs/speech/lib/python3.7/site-packages/torch/functional.py:516: UserWarning: stft will require the return_complex parameter be explicitly  specified in a future PyTorch release. Use return_complex=False  to preserve the current behavior or return_complex=True to return  a complex output. (Triggered internally at  /opt/conda/conda-bld/pytorch_1607370152014/work/aten/src/ATen/native/SpectralOps.cpp:653.)
  normalized, onesided, return_complex)
/home/anaconda3/envs/speech/lib/python3.7/site-packages/torch/functional.py:516: UserWarning: The function torch.rfft is deprecated and will be removed in a future PyTorch release. Use the new torch.fft module functions, instead, by importing torch.fft and calling torch.fft.fft or torch.fft.rfft. (Triggered internally at  /opt/conda/conda-bld/pytorch_1607370152014/work/aten/src/ATen/native/SpectralOps.cpp:590.)
  normalized, onesided, return_complex)