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Article
Author(s)

Masato Nakayama1, Kota Nakahashi2, Yukoh Wakabayashi2 and Takanobu Nishiura1

Affiliation(s)

1. College of Information Science and Engineering. Ritsumeikan University, Shiga, Japan
2. Graduate School of Information Science and Engineering. Ritsumeikan University, Shiga, Japan

ABSTRACT

LEV (Listener envelopment), which corresponds to surround sensation with independent direct and reflected sounds, is the spatial impression in three-dimensional sound field reproduction systems. However, IACC (interaural cross-correlation), which is conventionally used as an objective index to measure LEV, has difficulty in rating the surround sensation as it assumes a time-invariant sound source. In this paper, we propose a new objective index for surround sensation based on differential short-time IACF (interaural cross-correlation function). We evaluated the effectiveness of the proposed method through evaluation experiments.

KEYWORDS

LEV, surround sensation, IACC, differential short-time IACF, objective index.

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