In this activity, students play different kinds of sounds near a computer’s microphone and watch the resulting visual display created by oscilloscope software.

By the end of this activity, students should be able to:

  • relate the visual display to each sound played
  • appreciate the complexity of amplitudes and frequencies within real sounds.

Download the Word file (see link above) for:

  • introduction/background notes
  • instructions on what you need and what to do
  • discussion questions
  • extension ideas.
    Published 10 May 2011