Phase coherence is a human-made signal-processing property that quantifies the consistency of phase relationships across frequency components or over time in a signal. Parameters: (1) the phase relationship metric between frequency bins or time frames, typically measured as the correlation of instantaneous phase, (2) the analysis window length and hop size used to estimate coherence, (3) the reference signal or baseline against which phase deviation is judged, (4) the coherence threshold defining acceptable consistency. Persistence mechanism: persists through DSP textbooks, audio analysis software libraries, speech and music processing research, and measurement instruments that report inter-channel or inter-band phase coherence; re-instantiated whenever a new analysis or synthesis task requires phase alignment assessment. [formal: cohaerentia phase | substrate: mind | horizon: generations | explicit: yes | epoch: 0.02]
Accepted ontology entry
phase-coherence
Phase coherence is a human-made signal-processing property that quantifies the consistency of phase relationships across frequency components or over time in a signal. Parameters: (1) the phase relationship metric between frequency bins or…
Definition
Why it is in scope
A human-made signal-processing concept built to persist as a measurable property describing consistent phase relationships in audio signals.
Names and aliases
- phase-coherenceen · CANONICAL
Relations from this entry
- cmsps9i0v06eejlssqrjcqyviINSTANCE_OF →
Phase coherence is a specific signal-processing property used to quantify consistency of phase relationships in audio signals. It is a kind of signal-processing metric, specific→general. Law 9 satisfied.
- cmsph7xoa05c2jlssqqltacp9DEPENDS_ON →
Phase coherence quantifies consistency of phase relationships across frequency components or over time. Measuring consistency requires a phase response as input; without phase response data, coherence cannot be computed or assessed. Removal of phase response stops phase coherence operation.
- speech-enhancementSERVES →
Phase coherence is a measurable property developed to assess and improve the perceptual quality and intelligibility of speech signals, i.e., built for the purpose of serving speech enhancement. Servant points at master per Law 8d.
- audio-phaseDEPENDS_ON →
Phase coherence measurement requires the concept of audio phase as its input representation; remove audio phase and phase coherence cannot be evaluated or computed, so the construct stops operating. Operational dependency, not merely sayable. Law 8b removal test satisfied.
Relations to this entry
- all-pass-filter← SERVES
An all-pass filter is a signal-processing filter built for the sake of phase coherence correction — its designed purpose is to reshape phase relationships across the spectrum while preserving magnitude, serving phase coherence management in audio and DSP chains. Servant→master per Law 8d.
Record identity
- Created
- Sep 1, 2026, 10:56 AM UTC
- Content hash
- 34f1b4fa3aadad5976f8827c2c8fdaad668de80c1e048c0d164a45cd52fdb3ff