Abstract
Spherical microphone arrays may be used to capture the directional characteristics of a room acoustic response.
Spatial impulse response rendering (SIRR) is a method for parameterizing the response in terms of its principle directional and diffuse components, which allows for subsequent spatially enhanced reproduction of these captured spatial characteristics. This paper explores a reformulation of the higher-order spatial impulse response rendering (HO-SIRR) method for direct-to-binaural reproduction. The previously proposed HO-SIRR formulation was optimized for loudspeaker-based reproduction. While the loudspeaker channels may indeed be binauralized for headphones playback, such an approach does not necessarily take advantage of the full resolution of the employed head-related transfer function (HRTF) set and may incur coloration due to the employed amplitude panning functions. Therefore, this paper proposes a reformulation of the HO-SIRR for binaural rendering, which addresses these concerns. The proposed method is evaluated through objective perceptual metrics, which highlight reduced coloration error, while maintaining minimal spatial error only imposed by the HRTF measurement grid. An open-source implementation of the proposed reformulation is also made availa
Spatial impulse response rendering (SIRR) is a method for parameterizing the response in terms of its principle directional and diffuse components, which allows for subsequent spatially enhanced reproduction of these captured spatial characteristics. This paper explores a reformulation of the higher-order spatial impulse response rendering (HO-SIRR) method for direct-to-binaural reproduction. The previously proposed HO-SIRR formulation was optimized for loudspeaker-based reproduction. While the loudspeaker channels may indeed be binauralized for headphones playback, such an approach does not necessarily take advantage of the full resolution of the employed head-related transfer function (HRTF) set and may incur coloration due to the employed amplitude panning functions. Therefore, this paper proposes a reformulation of the HO-SIRR for binaural rendering, which addresses these concerns. The proposed method is evaluated through objective perceptual metrics, which highlight reduced coloration error, while maintaining minimal spatial error only imposed by the HRTF measurement grid. An open-source implementation of the proposed reformulation is also made availa
| Original language | English |
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| Title of host publication | ICA 2022 Proceedings |
| Publisher | Acoustical Society of Korea (ASK) |
| Number of pages | 5 |
| Publication status | Published - 2022 |
| MoE publication type | B3 Non-refereed conference publication |
| Event | International Congress on Acoustics - Hwabaek International Convention Center (HICO), Gyeongju, Korea, Republic of Duration: 24 Oct 2022 → 28 Oct 2022 Conference number: 24 https://ica2022korea.org |
Publication series
| Name | Proceedings of the ICA congress |
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| ISSN (Electronic) | 2415-1599 |
Conference
| Conference | International Congress on Acoustics |
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| Abbreviated title | ICA2022 |
| Country/Territory | Korea, Republic of |
| City | Gyeongju |
| Period | 24/10/2022 → 28/10/2022 |
| Internet address |