Can you try this?
import sys
sys.version
'3.6.8 (default, Jan 14 2019, 11:02:34) \n[GCC 8.0.1 20180414 (experimental) [trunk revision 259383]]'

!cat /usr/local/cuda/version.txt
CUDA Version 10.0.130

# Install dependencies
!apt-get install sox libsox-dev libsox-fmt-all

Go to the following link and check for links corresponding to your python and CUDA versions 16

61643300-2d95c880-acc0-11e9-9c17-136ef854a1e4.png1135×416

!pip3 install https://download.pytorch.org/whl/cu100/torch-1.1.0-cp36-cp36m-linux_x86_64.whl
!pip3 install https://download.pytorch.org/whl/cu100/torchvision-0.3.0-cp36-cp36m-linux_x86_64.whl

# install torchaudio
!pip install git+https://github.com/pytorch/audio.git@v0.2.0

# Run torchaudio
import torchaudio
print(torchaudio.__version__)  # prints 0.2.0a0+7d7342f