In jupyter on windows:
import librosa
/anaconda3/envs/python3/lib/python3.6/site-packages/soundfile.py in <module>()
140 _libname = _find_library('sndfile')
141 if _libname is None:
--> 142 raise OSError('sndfile library not found')
143 _snd = _ffi.dlopen(_libname)
144 except OSError:
OSError: sndfile library not found
googling revealed that this issue is only on windows, on linux ok. Seems like sndfile is c-library. Tried to install with pip - but sndfile not on pypi.