稀疏测量双耳室内脉冲响应的非参数插值技术比较

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-07-18 DOI:10.17743/jaes.2022.0150

David Bau, Hendrik Himmelein, Christoph Pörschmann

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引用次数: 0

摘要

本研究探讨了不同的插值技术，用于对在视角方向稀疏网格上测量的双耳室内脉冲响应（BRIR）进行空间升采样。在此背景下，作者最近提出了通过时间对齐进行球形阵列插值（SARITA）的方法，用于对麦克风数量有限的球形麦克风阵列信号进行插值。SARITA 与现有的两种非参数 BRIR 插值方法和天真线性插值方法进行了比较。研究提供了插值性能的技术和感知分析。结果表明，除线性插值外，所有插值方法都适用于实现逼真的听觉化，即使对于非常稀疏的 BRIR 集也是如此。对于 30° 的角度分辨率和真实世界的刺激物，大多数参与者无法将 SARITA 与无伪影的参照物区分开来。

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Comparison of Non-Parametric Interpolation Techniques for Sparsely Measured Binaural Room Impulse Responses

This study investigates different interpolation techniques for spatially upsampling Binaural Room Impulse Responses (BRIRs) measured on a sparse grid of view orientations. In this context, the authors recently presented the Spherical Array Interpolation by Time Alignment (SARITA) method for interpolating spherical microphone array signals with a limited number of microphones, which is adapted for the spatial upsampling of sparse BRIR datasets in the present work. SARITA is compared with two existing nonparametric BRIR-interpolation methods and naive linear interpolation. The study provides a technical and perceptual analysis of the interpolation performance. The results show the suitability of all interpolation methods apart from linear interpolation to achieving a realistic auralization, even for very sparse BRIR sets. For angular resolutions of 30° and real-world stimuli, most participants could not distinguish SARITA from an artifact-free reference.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.