Simple Explanation

A sound quality where high frequencies, like cymbals or high hats, are pronounced or emphasized.

Concise Technical Definition

An audio characteristic marked by elevated energy in the upper frequencies (treble or upper midrange), often resulting in a clear, detailed but potentially sharp sound.

Layman-Friendly Analogy

Like turning up the brightness on a photo—details pop, but too much can make it uncomfortable to look at.

Industry Usage Summary

Often used in audio reviews and sound tuning to describe a speaker or headphone’s treble response. Preferred by some for clarity and detail, but can be fatiguing if excessive due to treble peaks or distortion.

Engineering Shortcut

Bright = emphasized treble (↑ HF energy)

Full Technical Explanation

Brightness in audio refers to a spectral balance where higher frequencies are more prominent. It is typically associated with an increase in energy around 3 kHz–10 kHz, making instruments like cymbals, high hats, or strings stand out. While some listeners find this desirable for added clarity, excessive brightness—often due to poor design or distortion—can lead to listener fatigue and a harsh or piercing sound profile.