Question

Which is the vibrating part of drum

Answer 1

Then, these changes are transmitted to the drum shell and reflected back, and this action is repeated, creating avibration. These vibrations of the top and bottom heads create vibrations in the air, which become sound, and eventually, as the head vibrations are dampened, the sound diminishes.

Answer 2

The drum head and the membrane is the part of the drum that vibrates when hit. The drum head along with the material and size of the drum determines the sound that it makes.