Low, isolated axial modes dominate room problem-solving attention

Evidence

A better way to simplify is to focus on modes which are most prominent and most isolated, which often are the ones which cause the worst problems, and are often the lowest order axial modes. Unlike higher frequency modes, where they may combine in complex ways, isolated lower modes are easier to analyze and manipulate to our advantage. — Toole, Floyd E, Sound reproduction- the acoustics and…, 1536