دورية أكاديمية
Power Response and Modal Decay Estimation of Room Reflections from Spherical Microphone Array Measurements Using Eigenbeam Spatial Correlation Model
| العنوان: | Power Response and Modal Decay Estimation of Room Reflections from Spherical Microphone Array Measurements Using Eigenbeam Spatial Correlation Model |
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| المؤلفون: | Amy Bastine, Thushara D. Abhayapala, Jihui (Aimee) Zhang |
| المصدر: | Applied Sciences, Vol 11, Iss 16, p 7688 (2021) |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Technology LCC:Engineering (General). Civil engineering (General) LCC:Biology (General) LCC:Physics LCC:Chemistry |
| مصطلحات موضوعية: | reflection power, room response, directional decay rates, room modes, eigenbeam processing, spatial correlation, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999 |
| الوصف: | Modal decays and modal power distribution in acoustic environments are key factors in deciding the perceptual quality and performance accuracy of audio applications. This paper presents the application of the eigenbeam spatial correlation method in estimating the time-frequency-dependent directional reflection powers and modal decay times. The experimental results evaluate the application of the proposed technique for two rooms with distinct environments using their room impulse response (RIR) measurements recorded by a spherical microphone array. The paper discusses the classical concepts behind room mode distribution and the reasons behind their complex behavior in real environments. The time-frequency spectrum of room reflections, the dominant reflection locations, and the directional decay rates emulate a realistic response with respect to the theoretical expectations. The experimental observations prove that our model is a promising tool in characterizing early and late reflections, which will be beneficial in controlling the perceptual factors of room acoustics. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 11167688 2076-3417 |
| Relation: | https://www.mdpi.com/2076-3417/11/16/7688; https://doaj.org/toc/2076-3417 |
| DOI: | 10.3390/app11167688 |
| URL الوصول: | https://doaj.org/article/debcf3a00f7d4a3fb4a4a33fb80742b1 |
| رقم الأكسشن: | edsdoj.bcf3a00f7d4a3fb4a4a33fb80742b1 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 11167688 20763417 |
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| DOI: | 10.3390/app11167688 |