What is the definition of frequency?

Frequency is defined as the number of times a complete cycle of a periodic wave occurs per second. This measurement is crucial in the field of audio and video technologies, as frequency determines the pitch of sound in audio applications and the resolution of images in video applications. It is measured in Hertz (Hz), where one Hertz equals one cycle per second.

Understanding frequency allows professionals in the AV field to manage sound systems, understand the characteristics of audio signals, and optimize video displays to ensure the best quality output. The other definitions presented refer to different concepts in wave physics: amplitude relates to the strength of the wave, cycles per minute is a different unit of frequency that is less commonly used, and speed of wave propagation describes how fast a wave travels through a medium, rather than how often it cycles.