Comprehensive Housing R&D Inst., Sekisui House Ltd., Kabutodai, Kizu, Kyoto 619-02, Japan
Kobe Univ. Rokko, Nada, Kobe 657, Japan
First, the paired comparison tests show that auditory source width (ASW) cannot be uniquely determined by the degree of interaural cross correlation and SPL overall frequencies of the stimulus but is affected by the frequency characteristics of the degree of interaural cross correlation and the power spectrum. Second, the experiments, in which ASW of 2/3-oct band noises consisted of two adjacent 1/3-oct band noises with different degree of interaural cross correlation are quantitatively evaluated by subjects, indicate that ASW of 2/3-oct band noise can be estimated by summing weighted ASW of each 1/3-oct band noise.