news item vs sound bite

news item

sound bite

noun
  • A one-liner deliberately produced for this purpose; a statement specifically intended to be punchy and memorable. 

  • Synonym of sound clip 

  • An extract from a speech or interview used as edited into a news or other broadcast; an interview clip, especially seen as particularly expressive or pithy. 

How often have the words news item and sound bite occurred in a corpus of books? (source: Google Ngram Viewer )