The reasons are roughly as follows:

For a long time, compared with other factors such as hearing and smell, we have expanded the role of vision in mutual attraction. Facts have proved that from some perspectives, the attraction brought by voice is far more reliable than appearance. The gene of “voice control” is engraved in the DNA of each of us.

This attraction can be traced back to our ancestors. At that time, human brain capacity was only half of what it is now, and they lived in caves. Hunting and gathering are required during the day, and "friendship" activities are arranged in the evening: the light is dim and visibility is extremely low. Under poor visual conditions, the sound made by the other party is the key factor that determines whether the "interaction" should continue.

Introduction:

Sound is the sound wave produced by the vibration of an object. It is a wave phenomenon that spreads through a medium (air, solid, or liquid) and can be sensed by the hearing organs of humans or animals. The object that initially emits vibration (vibration) is called the source of the sound. Sound travels as waves (vibrations). Sound is the movement of sound waves traveling through any medium.

Sound is a wave. Sound that can be recognized by the human ear (frequency between 20 Hz and 20,000 Hz) is called sound.