when run test_lpcnet.py ,i met a bug [int too large to convert to C long]

[Curry-AI]

after synthesize *.f32 with tacotron2
and i run test_lpcnet.py , a bug occured

Traceback (most recent call last):
File "C:/PyCharmProject/tacotronChinese/LPCTron/LPCNet/src/test_lpcnet.py", line 104, in
np.array([np.round(mem)], dtype='int16').tofile(fout)
OverflowError: Python int too large to convert to C long

anybody can help me ,i don't know how to solve it