Silence and frame analysis: Whatever we talk about, what is left out is a key consideration
With regard to silence, a good starting point is The Soundscape: Our Environment and the Tuning of the World (1977, 1994) by R. Murray Schafer. Chapter 19 is entitled: “Silence.”
There are other ways to introduce the topic of silence, aside from citing Murray Schafer.  Many other people have spoken about silence as well, or have been silent with regard to the topic.
This post is also concerned with frame analysis. A good source to cite regarding this topic is Frame Analysis (1974) by Erving Goffman. I begin with the topic of silence.
As a general principle we can say that silence is always in the background when we encounter a blurb, news report, or summary. In order to create a short version of anything, much must be left out. The story, however, does not stop there. In order to create a long version of anything, the same situation is in place: in presenting your story, however long it may be, much must of necessity be left out.
The current post concerns itself with silence and frame analysis. So, it is a good time, at this point in the essay, to say a few words about framing. And the point is: Whatever we talk about, what is left out is a key consideration.