The word "vox" refers to a voice-operated switch, a device used in telecommunication equipment to convert audible voice and sound signals into electrical signals. An example of "vox" is a telephone answering machine, with the electrical signal turning on the recorder.
In pop culture, the word "vox" is a musical term, most often an abbreviation for vocals and singing. It is also the name of a record label and a company that makes musical instruments such as guitars and organs. Additionally, it is the name for a musical software program in computers and a classical channel on satellite radio stations. A more trendy expression using the word is "vox pop" which refers to recording people informally in public places, typically giving opinions on current events or issues.