High-Presence Sharp Sound Image Based on Sound Blending Using Parametric and Dynamic Loudspeakers

Abstract

Previously, a virtual sound image that is produced with multiple electro-dynamic loudspeakers (EDLs) was diffused due to the reverberation nature of the room. A parametric array loudspeaker (PAL) can produce a sharper sound image than an EDL. However, it is difficult to produce low-frequency sound with a PAL, and the sound quality of the virtual sound image also deteriorates. Although the sound quality of the virtual sound image can be improved with a subwoofer, the sound image moves to the direction of the subwoofer. In this paper, we propose a high-presence sharp sound image based on sound blending using PALs and EDLs.