Sound power predicts room response for omnidirectional speakers while directivity shapes room curves

Evidence

Measurements shown in Figure 12.14 demonstrate that for loudspeakers approaching omnidirectionality it is sound power that predicts the shape of the room curve. Loudspeaker directivity is the determining factor for room curves, and on-axis/listening window curves are those most related to perceived sound quality. — Toole, Floyd E, Sound reproduction- the acoustics and…, 1328

Categorization

• XREF: Connects to the loudspeaker directivity and room-curve discussions in earlier chapters (Figure 9.15 referenced, listening window concept from prior chapters).