spectral distribution

Spectral distribution describes how the energy or intensity of a source, such as light or sound, varies across different frequencies or wavelengths. For example, a light bulb emits a spectrum of colors (wavelengths), with some colors being brighter than others, creating its spectral distribution. In audio, it shows which pitches are louder or softer. Understanding spectral distribution helps us analyze and characterize sources by highlighting the unique pattern of their energy across frequencies, which is essential in fields like optics, acoustics, and signal processing.