helikõrgendus
Helikõrgendus, often translated as pitch or frequency, is a fundamental characteristic of sound that determines how high or low we perceive a sound to be. It is directly related to the physical property of sound waves known as frequency. Frequency is measured in Hertz (Hz), which represents the number of complete sound wave cycles that pass a point in one second. A higher frequency corresponds to a higher pitch, while a lower frequency corresponds to a lower pitch.
The human ear can perceive a range of frequencies, typically from about 20 Hz to 20,000 Hz.
Helikõrgendus plays a crucial role in music, speech, and the identification of various sounds in our environment.