The buzzer consists of an outside case with two pins to attach it to power and ground. When current is applied to the buzzer it causes the ceramic disk to contract or expand. Changing the This then causes the surrounding disc to vibrate. Thats the sound that you hear.

Beside above, how can a buzzer in a circuit be made quieter? Hi, measure the resistance of the buzzer, then place a resistor the same value as the buzzer in series with it, see how much this drops the volume. The more resistance to quieter the buzzer should be. If the buzzer does not work with half the value try a value lower in resisitance.

Likewise, people ask, what is the sound of buzzer?

Sounds commonly used to indicate that a button has been pressed are a click, a ring or a beep.

How do you test a buzzer?

The purpose of the buzzer test is to test functions of the buzzers installed in a computer. Typically, the buzzer test is done by controlling the buzzer to sound a continuous buzzing sound while a test engineer listens to the buzzer with ears to determine if the buzzer is in working condition.