Spectral coloration is the non-flat character of a frequency spectrum, where certain frequency bands are emphasized or attenuated relative to others, producing a timbral quality analogous to visual color. Parameters: (1) the spectral envelope shape (amplitude vs. frequency), (2) the resonant peaks and troughs that define the coloration pattern, (3) the bandwidth of affected regions, (4) the magnitude of emphasis or attenuation in decibels. Persistence: measurable via spectral analysis (FFT/STFT); persists in recorded audio as the characteristic timbre of a source, room, or processing chain. [formal: coloratio spectralis | substrate: mind | horizon: a moment | explicit: yes | epoch: 0.01]
Accepted ontology entry
spectral-coloration
Spectral coloration is the non-flat character of a frequency spectrum, where certain frequency bands are emphasized or attenuated relative to others, producing a timbral quality analogous to visual color. Parameters: (1) the spectral envel…
Definition
Why it is in scope
Human-made signal processing property describing deviation of magnitude spectrum from flatness, persisting in audio analysis.
Names and aliases
- spectral-colorationen · CANONICAL
Relations from this entry
- cmsq4obya07m0jlssh92wv3v0DEPENDS_ON →
Spectral coloration is the property of uneven energy distribution in a spectrum. It is a property OF a spectral representation — the concept depends on spectral representation existing as the carrier concept. Remove spectral representation and 'spectral coloration' has nothing to be a property of.
- cmrssifjh00bk145rcznrefirINSTANCE_OF →
Spectral coloration is a specific kind of artifact in audio signal processing, a measurable deviation of spectrum from flatness produced by filtering. It is a specific instance of the general class artifact.
- cmsorsyn802qbjlss3cb2ruiyDEPENDS_ON →
Spectral coloration is the non-flat character of a frequency spectrum — it IS a property of spectral content. Remove the concept of frequency, and spectral-coloration loses its entire referent; it cannot operate as a concept. This is a constitutive dependency per Law 8.
Relations to this entry
- cms68l1jh00cw5ygsxx4vl25k← DEPENDS_ON
Timbre is the perceptual quality that distinguishes sounds of same pitch/loudness — determined by the spectral color (non-flat frequency content) of the sound. Remove spectral-coloration and timbre loses its explanatory mechanism; the concept cannot operate without it. This passes the removal test per Law 8: no spectral-coloration concept = no basis for timbre as a distinguishable quality.
Record identity
- Created
- Aug 26, 2026, 9:20 PM UTC
- Content hash
- 24557079d0f226e0cdc1bfad229149a18af8a3162e161cc38e70cec8e09370cb