Fundamental frequency

Definition

The fundamental frequency is the lowest frequency at which an object or system can vibrate, producing its simplest and most basic sound.

Analogy

Think of the fundamental frequency as the "building block" of sound. Just like how a single Lego brick is the foundation for building more complex structures, the fundamental frequency sets the stage for all other frequencies and harmonics in a sound wave.

Related terms

Harmonics: These are higher frequencies that are integer multiples of the fundamental frequency. They give a unique character to a sound.

Resonance: This occurs when an object vibrates at its natural or resonant frequency due to external forces matching its own frequency, resulting in increased amplitude and energy transfer.

Overtones: These are additional frequencies present in a complex sound wave that are not harmonics but still contribute to its overall quality.