The handle motion is small , allowing the fork to be held by the handle without damping the vibration , but it allows the handle to transmit the vibration to a resonator , which amplifies the sound of the fork .
The handle motion is small , allowing the fork to be held by the handle without damping the vibration , but it allows the handle to transmit the vibration to a resonator ( like the hollow rectangular box often used ) , which amplifies the sound of the fork .