Follow
Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1

TOPIC:

H4-18: LISSAJOUS FIGURES WITH SOUND 8 years 1 month ago #1480

  • zzfixk21
  • zzfixk21's Avatar Topic Author
  • Offline
  • User is blocked
  • User is blocked
  • Posts: 1014
  • Karma: 1
  • Thank you received: 0


ID Code: H4-18
Purpose: Demonstrate the relation between "consonance" (musical intervals) and frequency ratios.
Description: Two identical oscillator/loudspeaker setups are sounded and simultaneously input into the two axes of an oscilloscope to produce a Lissajous figure. Two pitches which are related by simple rational whole numbers such as 3:2 or 5:4 are musical intervals and produce stationary figures. Beats between two close frequencies are also visibly evident by this technique. Try two close frequencies and two related by a small whole number interval for contrast. Let your students judge their consonance.
Availability: Available

Please Log in to join the conversation.

  • Page:
  • 1
Time to create page: 0.078 seconds