Phase response stops being audible once sound leaves the loudspeaker

Evidence

Both amplitude and phase responses of transducers are essential engineering data when designing loudspeaker crossovers and arrays where the outputs from multiple drivers must acoustically sum in an orderly manner. However, once the sound has left the loudspeaker system, phase, by itself, turns out not to be a significant audible factor. — Toole, Floyd E, Sound reproduction- the acoustics and…, 114

Categorization

• XREF: Connects to the reader’s earlier work on trees as infrastructure in that both concern what matters only in context — structure that is load-bearing at one scale and irrelevant at another.