Anechoic early-reflections data predict steady-state room curves across rooms and sample variations.

Evidence

In Figure 12.16(b) the estimated room curves (the early-reflections spinorama curves) in (a) are compared to seven spatially averaged steady-state room curves measured in five different rooms for the Revel Salon2, F208, and M106, the JBL Pro M2 and the Infinity Prelude MTS. All these loudspeakers received high ratings in double-blind listening tests. The measurements include sample variations, room variations and measuring system variations (two of them came from audio forum posts), yet it is evident that the predictions represent a good central tendency for the fluctuating room curves. — Toole, Floyd E, Sound reproduction- the acoustics and…, 1344