Definition: Hertz is a term used in audio to describe frequency or tone. It is also known as cycles per second and abbreviated as Hz. A single Hertz is one wave cycle from crest to crest. Human hearing is sensitive to frequencies or tones ranging from 20 to 20,000 Hertz, or 20Hz to 20kHz. It is named after Heinrich Hertz, a German physicist. The term kHz means kiloHertz (thousands of Hertz) and mHz mean megaHertz (millions of Hertz).
Also Known As: Hz, cycles per second, cps
Examples:The human ear is sensitive to frequencies from approximately 20 Hertz to 20,000 Hertz, or 20Hz - 20kHz (k means 'kilo' or thousand).