  This paper presents a subjective study conducted on the perception of salient
auditory attributes depending on the listener's position and head orientations
in an enclosed space. Two elicitation experiments were carried out using the
Repertory Grid Technique; in-situ and laboratory experiments aimed to identify
perceptual attributes among ten different combinations of the listener's
positions and head orientations in a concert hall. Results revealed that,
between the in-situ and laboratory experiments, the listening positions and
head orientations were clustered identically. Ten salient perceptual attributes
were identified from the data obtained from the laboratory experiment. Whilst
these included conventional attributes such as ASW (apparent source width) and
LEV (listener envelopment), new attributes such as PRL (perceived reverb
loudness), ARW (apparent reverb width) and Reverb Direction were identified,
and they are hypothesised to be sub-attributes of LEV (listener envelopment).
Timbral characteristics such as Reverb Brightness and Echo Brightness were also
identified as salient attributes, which are considered to potentially
contribute to the overall sound clarity.
