|
i38442 Objective measures of spaciousness and envelopmentDavid GriesingerBedford, MA USA
Research into concert hall acoustics has shown that acoustic preference
is strongly influenced by spatial properties of the soundfield. Commonly
discussed perceptions include Apparent Source Width (ASW), "Intimacy",
and Listener Envelopment (LEV). Objective measures of these perceptions
have proved difficult to construct, in part because the perceptions depend
strongly on the source signal. Current measures for these properties have
not always given consistent results, and are not in general applicable
to sound systems in small rooms. This paper will discuss the strengths
and weaknesses of conventional measures. It will present two new measures,
the Diffuse Field Transfer function (DFT), and the Average Interaural Time
Delay (AITD), that are useful at low frequencies in small rooms.
|
Last modified: 12.03.1999 aes16@acoustics.hut.fi