:pinching_hand: Better silence management/encoding

[adriens]

... so output wav can be easily previewed on various platforms and easily compressed to mp3/webm :

• https://github.com/suno-ai/bark/issues/288

[gkucsko]

not sure i understand the title of this PR..

[adriens]

In fact, this PR is to make a better slience management so output wav can be easily compressed to mp3 or webm

[JonathanFly]

I think I can translate. He's probably getting 32 or 64 bit wav files however he's running or integrating that code, because it's matching the type from np.zeros silence segments. The files are bigger and some players don't like them, windows media player won't play the 32 bit ones. Kind of a implementation detail though, not really a problem.

[tongbaojia]

This PR should be good to land IMO.