The brain "creates" sound
Sound is an experience that our brains produce based on tiny pressure fluctuations in the air. The more frequent the fluctuations, the higher the notes we hear. The number of fluctuations is known as frequency.
Sound is an experience that our brains produce based on tiny pressure fluctuations in the air. The more frequent the fluctuations, the higher the notes we hear. The number of fluctuations is known as frequency.