@inproceedings{Eaton:2015:10.1109/ICASSP.2015.7177929,
author = {Eaton, J and Moore, AH and Naylor, PA and Skoglund, J},
doi = {10.1109/ICASSP.2015.7177929},
pages = {46--50},
publisher = {IEEE},
title = {Direct-to-reverberant ratio estimation using a null-steered beamformer},
url = {http://dx.doi.org/10.1109/ICASSP.2015.7177929},
year = {2015}
}

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TY  - CPAPER
AB  - Reverberation affects the quality and intelligibility of distant speech recorded in a room. Direct-to-Reverberant Ratio (DRR) is a useful measure for assessing the acoustic configuration and can be used to inform dereverberation algorithms. We describe a novel DRR estimation algorithm applicable where the signal was recorded with two or more microphones, such as mobile communications devices and laptops. The method uses a null-steered beamformer. In simulations the proposed method yields accurate DRR estimates to within +/- 4 dB across a across a wide variety of room sizes, reverberation times and source-receiver distances. It is also shown that the proposed method is more robust to background noise than a baseline approach. The best estimation accuracy is obtained in the region from -5 to 5 dB which is a relevant range for portable devices.
AU  - Eaton,J
AU  - Moore,AH
AU  - Naylor,PA
AU  - Skoglund,J
DO  - 10.1109/ICASSP.2015.7177929
EP  - 50
PB  - IEEE
PY  - 2015///
SP  - 46
TI  - Direct-to-reverberant ratio estimation using a null-steered beamformer
UR  - http://dx.doi.org/10.1109/ICASSP.2015.7177929
UR  - http://hdl.handle.net/10044/1/28526
ER  - 

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