You need matter to vibrate at a frequency that is detectable to the listener.
For a sound wave to be created there has to be a vibration
The sound signal must firstly be changed into an electrical signal.
The waves in which sound appears is called wave form of sound.
When matter vibrates it sends out a sound wave.
It becomes louder. The amplitude of the sound wave increases
When matter vibrates it sends out a sound wave.
Sound waves are longitudinal.
When matter vibrates it sends out a sound wave.
when a wave travel through medium then sound is produced
medium
"Sound waves" are basically pressure waves - areas of higher and lower pressure, that propagate as a wave. You must have SOME means to create those pressure changes, and to do so quickly.