Sound wave frequency refers to the number of vibrations or cycles of a sound wave that occur in one second. It is measured in hertz (Hz), where one hertz equals one cycle per second.

Key Points:

High vs. Low Frequency:

High Frequency: Results in higher-pitched sounds (e.g., a whistle).

Low Frequency: Produces lower-pitched sounds (e.g., a drum).

Human Hearing Range: The typical range of human hearing is from about 20 Hz to 20,000 Hz (20 kHz). Sounds below 20 Hz are called infrasound, and those above 20 kHz are referred to as ultrasound.

Impact on Sound: Frequency affects how we perceive sound. Higher frequencies are perceived as sharper and more distinct, while lower frequencies tend to sound deeper and fuller.

Understanding sound wave frequency is essential in various fields, including music, acoustics, and audio engineering, as it directly influences sound quality and characteristics.