Design of inverse filter using H_∞ control theory for sound field reproduction with shoulder-mounted wearable-speakers

Abstract

Binaural and transaural systems are well-known methods of sound field reproduction. However, each system has its own problems such as in-head localization and narrow control points. Therefore, this study aims to design a sound field reproduction system using shoulder-mounted wearable-speakers that can solve these problems. The system is expected to sustain the effect of sound field reproduction even while moving and is expected to be applied in the field of entertainment. This paper shows the head transfer function of the wearable loudspeaker and designs an inverse filter, which is indispensable for the sound field reproduction system, using H_∞ control theory.