A new time and intensity trade-off function for localisation of natural sound sources

This paper firstly introduces a new set of psychoacoustic values of interchannel time difference (ICTD) and interchannel intensity difference (ICID) required for 10°, 20° and 30° localisation in the conventional stereophonic reproduction, which were obtained using natural sound sources of musical instruments and wideband speech representing different characteristics. Then it discusses the new concept of ICID and ICTD trade-off function developed based on the relationship of the psychoacoustic values. The result of the listening test conducted to verify the performance of the proposed method is also presented.