title: detecting the index of silence from a given audio file using python
body: <p>I am trying to process an audio file in python using various modules like numpy, struct etc. But I am really having a hard time detecting silence in the file, as in where is the presence of silence. one on the methods I came across was to slide a window of fixed time interval over my audio signal and record the sum of squared elements. I am new to python and hardly aware of it thus unable to implement this method.</p>