phone-in vs transcription

phone-in

noun
  • A show requiring members of the public to telephone the studio. 

transcription

noun
  • A recorded radio or television programme. 

  • A representation of speech sounds as phonetic symbols. 

  • The synthesis of RNA under the direction of DNA. 

  • An adaptation of a composition. 

  • The act or process of transcribing. 

How often have the words phone-in and transcription occurred in a corpus of books? (source: Google Ngram Viewer )