Spatial extrapolation of early room impulse responses with source radiation model based on equivalent source method

Tsunokuni I, Matsuhashi H, Ikeda Y. Spatial extrapolation of early room impulse responses with source radiation model based on equivalent source method. In: AES Convention 152. Audio Engineering Society; 2022. Paper 10582. Available from: https://aes.org/publications/elibrary-page/?id=21695

@inproceedings{Tsunokuni2022_21695,
  author = {Tsunokuni, Izumi and Matsuhashi, Haruka and Ikeda, Yusuke},
  title = {{Spatial extrapolation of early room impulse responses with source radiation model based on equivalent source method}},
  booktitle = {AES Convention 152},
  note = {Paper 10582},
  year = {2022},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=21695}
}

TY  - CPAPER
TI  - Spatial extrapolation of early room impulse responses with source radiation model based on equivalent source method
AU  - Tsunokuni, Izumi
AU  - Matsuhashi, Haruka
AU  - Ikeda, Yusuke
T2  - AES Convention 152
M1  - Paper 10582
PY  - 2022
DA  - 2022/05/06
UR  - https://aes.org/publications/elibrary-page/?id=21695
PB  - Audio Engineering Society
LA  - en
AB  - The measurement of room impulse responses (RIRs) at multiple points is useful in most acoustic applications, such as sound field control. Recently, several methods have been proposed to estimate multiple RIRs. However, when using a small number of closely located microphones, the estimation accuracy degrades owing to the source directivity. In this study, we propose an RIR estimation method using a source radiation model based on the sparse equivalent source method (ESM). First, based on the sparse ESM, the source radiation was modeled in advance by the microphone array enclosing the sound source. Subsequently, the sound field, including the sound reflections, was modeled using the source radiation model based on the sparse ESM and the image source method. As observed from the simulation experiments, the estimation accuracy was improved at higher frequencies compared with the sparse ESM without the source radiation model.
ER  -