Computed room impulse responses often sound unnatural in the late reverberant tail

Evidence

Unfortunately, the impulse responses computed from models often do not create natural-sounding reverberation. The frequency range of the modelling may not be sufficient, and the late reverberant tail may sound unrealistically bright. In some cases, only the early reflections are modelled accurately, and the late response is generated using DSP structures (Savioja et al., 1999). — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1961