Pin torchaudio to 0.7.0

Fixes: #15

Author: sharvil

setup.py

@@ -54,7 +54,7 @@
  install_requires = [
  'numpy',
  'torch>=1.6',
- 'torchaudio>=0.6.0',
+ 'torchaudio==0.7.0',
  'tqdm'
  ],
  classifiers = CLASSIFIERS)