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Abstract
Measured spatial room impulse responses have been used to compare acoustic spaces. One way to analyze and render such responses is to apply parametric methods, yet those methods have been bound to single measurement locations. This paper introduces a method that locates image sources from spatial room impulse responses measured at multiple source and receiver positions. The method aligns the measurements to a common coordinate frame and groups stable direction-of-arrival estimates to find image source positions. The performance of the method is validated with three case studies—one small room and two concert halls. The studies show that the method is able to locate the most prominent image sources even in complex spaces, providing new insights into available Spatial Room Impulse Response (SRIR) data and a starting point for six degrees of freedom (6DoF) acoustic rendering.
Original language | English |
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Article number | 2485 |
Number of pages | 22 |
Journal | Applied Sciences |
Volume | 11 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2 Mar 2021 |
MoE publication type | A1 Journal article-refereed |
Keywords
- room acoustics
- spatial impulse response
- microphone array
- image source method
- measurement analysis
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Dive into the research topics of 'Locating Image Sources from Multiple Spatial Room Impulse Responses'. Together they form a unique fingerprint.Projects
- 2 Finished
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VRACE: Virtual Reality Audio for Cyber Environments
Lokki, T. (Principal investigator)
01/03/2019 → 31/08/2023
Project: EU: MC
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ICHO: Immersive Concert for Homes (ICHO)
Lokki, T. (Principal investigator)
01/09/2016 → 31/12/2020
Project: Academy of Finland: Other research funding