Personalization of interaural difference cues based on the anthropometry of the listener's head

- Estimation of interaural time difference -

Abstract

This study proposes an estimation method of listener's interaural time difference (ITD) based on the anthropometry of the listener's head. Ten anthropometric parameters of the heads and the ITDs on the horizontal plane for 33 subjects were measured. Then the multiple regression analysis of the ITD for each direction and the anthropometric parameters were carried out. The results show that the average of the correlation coefficients was 0.59 and the mean residual error was 16.5 µs. Accuracy of the multiple regression was verified using four naive subjects. The mean estimation error was 19.2 µs (2.3 degrees). Finally, the estimation accuracy of the proposed method was compared to that of previous method. The average estimation error of the proposed method was smaller (51.5 µs, 7.3 degrees) than those of the previous methods.