Estimation of the direct-to-reverberant Energy Ratio using a spherical microphone array
Sound
2015-11-02 v1
Abstract
This paper proposes a practical approach to estimate the direct-to-reverberant energy ratio (DRR) using a spherical microphone array without having knowledge of the source signal. We base our estimation on a theoretical relationship between the DRR and the coherence estimation function between coincident pressure and particle velocity. We discuss the proposed method's ability to estimate the DRR in a wide variety of room sizes, reverberation times and source receiver distances with appropriate examples. Test results show that the method can estimate the room DRR for frequencies between 199 - 2511 Hz, with 3 dB accuracy.
Keywords
Cite
@article{arxiv.1510.08950,
title = {Estimation of the direct-to-reverberant Energy Ratio using a spherical microphone array},
author = {Hanchi Chen and Prasanga N. Samarasinghe and Thushara D. Abhayapala and Wen Zhang},
journal= {arXiv preprint arXiv:1510.08950},
year = {2015}
}
Comments
In Proceedings of the ACE Challenge Workshop - a satellite event of IEEE-WASPAA 2015 (arXiv:1510.00383)