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| 頭部伝達関数× | アンビソニックス× | |
|---|---|---|
| 分野 | 応用物理学 | 応用物理学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1989 | 1973 |
| 提唱者≠ | Fredrik Wightman, Doris Kistler | Michael Gerzon |
| 種類≠ | Frequency-dependent spatial filtering function | Spatial audio encoding and reproduction technique |
| 原典≠ | Wightman, F. L., & Kistler, D. J. (1989). Headphone simulation of free-field listening. I: Stimulus synthesis. The Journal of the Acoustical Society of America, 85(2), 858-867. DOI ↗ | Gerzon, M. A. (1973). Periphony: with-height sound reproduction. Journal of the Audio Engineering Society, 21(1), 2-10. link ↗ |
| 別名 | HRTF, spatial hearing, binaural filter | spatial audio, B-format, ambisonic recording |
| 関連 | 3 | 3 |
| 概要≠ | The Head-Related Transfer Function (HRTF) describes how the human head, ears, and torso filter sound from different directions. HRTFs capture the acoustical changes that occur as sound travels around the head to reach each ear, enabling the perception of sound location in 3D space. Measured or modeled HRTFs are essential for creating convincing 3D audio through headphones in virtual reality, spatial games, and immersive audio applications. | Ambisonics is a full-sphere spatial audio encoding and reproduction technique that captures and reproduces three-dimensional sound fields. Developed by Michael Gerzon in the 1970s, it uses spherical harmonics to represent sound at all directions around a central point. Unlike surround systems that use discrete channels, Ambisonics provides a format-agnostic spatial representation that can be rotated, translated, and rendered to any speaker configuration. |
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