Trim silent parts of podcast

[dennisfedorko]

Create a feature similar to what many other podcasts apps have where they cut out the parts where nobody is talking

[natashaarmbrust]

@dennisfedorko do you have a branch for this? I remember you had something implemented last semester.

[dennisfedorko]

I'll take a look to see if I can find it, but pretty much all it did was take amplitude of audio and speed up playback during quiet parts

[natashaarmbrust]

Dennis's implementation: https://gist.github.com/dennisfedorko/143b2a42f7a139b47a44d23a728b0bc0