audio-phase

Audio-phase is a concept within signal processing — it describes the relative timing of frequency components in an audio signal. Remove signal-processing and audio-phase stops operating as a meaningful concept.

Pinned sense: audio-phase as the audio-domain map of cyclic position (Law 11d), per its accepted definition — the angular offset of a periodic waveform relative to a reference within [0, 2 pi) — which is the general phase concept (accepted definition: a point within the cycle of a periodic waveform, quantified as an angle) restricted to the audio frequency domain. Specific to general (Law 9): a competent speaker calls audio phase phase, in the audio band. Nearest kind is phase itself (Law 11e): audio-phase's accepted edges run to signal-processing and frequency, neither of which is its kind; the domain-restricted map points at the general parameter it instantiates. Not DERIVED_FROM: the claim is kindhood, not chronology.

Audio-phase is the angular offset of a periodic waveform. Phase advances at rate 2πf (f being frequency). Remove frequency and phase has no rate of change — it becomes a meaningless concept. Direction correct: audio-phase depends on frequency as the parameter that governs phase evolution.

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.