Article,
Grouped pair-wise comparison for subjective sound quality evaluation
CHINESE JOURNAL OF ACOUSTICS, (2006)
Abstract
In subjective sound quality pair-wise comparison evaluation, test
time grows with square of the number of sound stimulus. For this
reason, subjective evaluation of large quantity of stimulus is difficult
to carry out with pair-wise comparison method. A grouped pair-wise
comparison (GPC) method is proposed to greatly decrease time and
difficult of subjective comparison test, in which stimuli in the
whole evaluation corpus are divided into N test groups,with reference-link
stimuli configured in each group. Derived from subjective results
of each group, final results of all stimuli are reconstructed, and
their perceptual attributes of sound quality can be analyzed. With
car interior noise as example, realization of subjective sound quality
evaluation with GPC method is introduced. The results of GPC evaluation
are in good agreement with those obtained from paired comparison
and semantic differential methods.
