Resonances near anechoic thresholds become audible again in reflective rooms

Evidence

Figures 4.10 and 4.11 provide guidance, even though they were for isolated resonances in an otherwise flat response curve. It can be seen that this bump is several times higher than the detection threshold for the Q = 1 resonance, the closest match. The other medium-Q resonances in (a) are around the anechoic detection threshold, and in a reflective room the threshold will be even lower, so these may be audible in program. — , Toole, Floyd E - Sound reproduction-…, 399

Categorization

• XREF: connects to: Hard-walled rooms behave as three-dimensional resonators with many audible modal frequencies — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 291; Adding damping to a resonance paradoxically makes it more audible by widening its bandwidth; Reflections increase sensitivity to low and mid-Q resonances in reproduced sound (+5 more)

Broader Connections

• Low absorber rooms raise overall sound level because reverberant energy persists longer #expands (0.78) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1756