Which instrument family produces sound by vibrating a skin or membrane, like drums?

• A. Vocal
• B. Idiophone
• C. Aerophone
• D. Membranophone

Answer: (D)

Sound comes from a stretched skin or membrane vibrating when it’s struck, and that vibrating membrane is the defining feature of membranophones. Drums are the clear example: a skin stretched over a frame is struck, and the membrane’s vibration drives the sound. This distinguishes membranophones from other families. Idiophones produce sound from the instrument’s own body vibrating (like a wood block or a cymbal), aerophones create sound primarily by vibrating air (like flutes and trumpets), and the human voice makes sound with the vocal cords. So, when the vibrating element is a skin or membrane, it’s a membranophone.