Object-based stereo up-mixer for wave field synthesis based on spatial information clustering

Abstract

To build an acoustic system that can maintain the localization of sound images included in stereo mixed signals, we propose a new object-based up-mixer that performs sound source separation and sound location estimation. First, in a preliminary experiment, we show the effectiveness of sound location estimation using the proposed up-mixer via objective tests. Next, we evaluate the perception accuracy of sound localization by wave field synthesis using the proposed up-mixer via subjective tests. The results show that the proposed up-mixer provides a good localization of sound images included in stereo mixed signals at several listening positions.