afterclap vs aftersound

afterclap

noun
  • A sound that follows another, especially a loud noise, such as thunder. 

  • A canvas curtain or tailboard at the rear of a covered wagon. 

  • A phenomenon occurring after a similar earlier one; a later manifestation of something. 

  • The consequence (often, but not always, adverse) of an action or event. 

  • A child born after the one that was intended to be the last. 

  • A symptom of an illness, especially one that appears after the initial onset; an illness or symptom caused by exposure to a substance, an injury, etc. 

aftersound

noun
  • A sound that persists or remains audible after its source has ceased to produce it; the perception of such a sound. 

  • The second, slower phase of decay in the sound made by a piano string when it is struck. 

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