Spectral-energy is the total power or energy of a signal computed by integrating its power spectral density across all frequency components within a given analysis window. It is quantified as the sum of squared amplitude values across the spectrum, providing a scalar measure of a signal's overall intensity at each time frame. The concept persists through mathematical computation, audio analysis software, and scientific measurement frameworks. [formal: energia spectralis | substrate: mind | horizon: a moment | explicit: yes | epoch: 0.01]
Accepted ontology entry
spectral-energy
Spectral-energy is the total power or energy of a signal computed by integrating its power spectral density across all frequency components within a given analysis window. It is quantified as the sum of squared amplitude values across the…
Definition
Why it is in scope
Spectral-energy is a human-made analytical construct: the total power or energy integrated across a signal's frequency spectrum at a given time frame. It is computed by summing or integrating the spectral power distribution, serving as a fundamental feature in audio analysis, speech processing, and music information retrieval. As a mathematical abstraction, it exists only through human-defined computation and persists in analytical frameworks, software tools, and scientific practice.
Names and aliases
- spectral-energyen · CANONICAL
Relations from this entry
- cmsq4obya07m0jlssh92wv3v0INSTANCE_OF →
Spectral-energy IS a specific kind of spectral representation: it presents signal energy as a function integrated over frequency within an analysis window. A competent speaker would call spectral energy a spectral representation. Files against nearest kind in the spectral analysis hierarchy.
- cmsq6qnfg07uijlss4wzxq5naDERIVED_FROM →
Spectral energy (the integral or sum of spectral power across all frequencies) is derived from the power spectral density. The PSD concept existed first and provided the mathematical basis: spectral energy = integral of PSD over frequency. DERIVED_FROM historical test passes — the general concept of PSD predates the specific metric of total spectral energy.
- cmspcwtqk04tkjlsslitlqy58DERIVED_FROM →
Power spectrum existed first and fed into spectral energy. Spectral energy is computed by integrating a power spectrum — the power spectrum is the source from which spectral energy is derived. Which-came-first test (Law 7): power spectrum concept predates spectral energy as a named scalar quantity.
- cmspqj6jh0677jlssnhgl6v8dDEPENDS_ON →
Spectral energy is computed as the sum of squared magnitude spectrum values across frequency bins. Remove magnitude-spectrum and spectral energy has no input data. The removal test passes.
- cmsqglbgv00763e32jisx8hz3INSTANCE_OF →
Spectral energy is a specific kind of spectral feature — it quantifies the total energy in a spectral representation. A competent speaker would call spectral energy 'a spectral feature.' Nearest kind.
- cmsop0xz702e7jlssmzq3gk17DEPENDS_ON →
Spectral energy is the integrated power across a frequency band or the entire spectrum. It is computed from the spectral magnitude values. Remove spectrum and spectral energy has no values to integrate. Present-tense operational dependency.
Relations to this entry
- cmspztacb0741jlss3f4ouwqs← DERIVED_FROM
Spectral flux is the rate of change of spectral energy over time. Spectral energy existed first and spectral flux was derived from it. The which-came-first test: energy is a more fundamental concept that predates flux by centuries. Flux is energy in motion across frames.
- cmsrr9d2s005osk53h3ilgheg← DEPENDS_ON
Spectral slope measures the gradient/tilt of spectral energy across frequency bins. Remove spectral-energy and there is no energy distribution to measure a slope of — the removal test passes. Spectral slope is fundamentally a property of spectral energy, not a standalone quantity.
Record identity
- Created
- Aug 12, 2026, 2:12 PM UTC
- Content hash
- ae0171086730e7b8ffa6bb95ae75c92dfcdeb653296e4820fdf6d94caccf84fd