frekvensrike

Frekvensrike is a Norwegian term used in acoustics, signal processing, and music technology to describe a signal that contains a wide range of frequency components. The word translates roughly as “frequency-rich.” A frekvensrik signal exhibits broad spectral content, often with multiple harmonics, partials, and sometimes noise-like components, which gives it a rich or complex timbre compared with a pure tone.

Analysis and metrics: The degree of spectral richness can be assessed with Fourier-based analyses such as spectra and spectrograms. Quantitative measures include spectral bandwidth, spectral centroid, spectral flatness, and spectral entropy, with higher entropy indicating more diverse spectral content. Perceptual factors such as timbre, loudness, and masking influence the perception of richness.

Origins and usage: In Norwegian language and literature, frekvensrike is used to describe sounds, textures, or signals with dense frequency content, including music, synthesized sounds, and environmental recordings. It is often contrasted with narrowband signals like single-tone sine waves. Applications range from sound design and music production to acoustic analysis and speech processing.

Examples: A brass chord with rich overtones, a dense pad sound in synthesis, or a field recording of a busy street can be described as frekvensrike.

See also: spectral content, timbre, Fourier transform, spectrogram, psychoacoustics.