A drum makes sound due to the vibrations of the material stretched across its hollow body. When a stick, mallet, or hand strikes down on this surface material, it begins to vibrate up and down. The vibration moves the air, creating sound waves.
The sound that comes out of a drum is affected by its shape. If the drum is large, the sound will have a lower pitch. This is because the material on the top of the drum will take longer to move upward when it is struck. The slower vibration causes a lower pitch. Conversely, a drum with a small body will have a higher pitch.
In much the same way, the material covering the drum impacts the sound quality. If the material is stretched more tightly across the drum, it will vibrate more and produce a higher sound. If the material is stretched loosely, the sound will be lower.
Finally, drum sound is impacted by the way that the drum is struck. If it is struck with an open hand or wooden stick, it makes a sharp noise instantly, followed by a vibrating sound. If struck by a padded mallet, the drum will make the vibrating noise the entire time.Learn More
The first modern drum set was invented in the 1930s, and made popular by Ben Duncan. It included a bass drum, snare drum and cymbals.Full Answer >
Acoustic scientists discovered that 3,000-year-old conch shells used as trumpets make a haunting and droning sound. Trumpets made of metal, such as bronze and silver, produce a buzzing vibration occurring inside the instrument. They date back to 1500 B.C.Full Answer >
Stringed instruments create sound through the vibrations caused by the musician's manipulation of the strings. This is achieved through strumming, striking, plucking or rubbing a bow across the strings. The strings are supported by a bridge that transfers their vibrations into the top of the instrument, referred to as the sound board. The sound board carries the vibrations to the instrument's body, which is called the soundbox or resonator.Full Answer >
The clarinet produces sound by blowing air across a reed, into the mouthpiece, down through the body of the instrument and by pressing keys or covering holes on the instrument to change notes. The notes change in this manner because it disrupts the airflow and the wavelength of the air moving through the instrument.Full Answer >