Estimation of the Direct-to-Reverberant Energy Ratio using a Spherical Microphone Array

Hanchi Chen; Prasanga Samarasinghe; Thushara Abhayapala; Wen Zhang

doi:10.00383

Estimation of the Direct-to-Reverberant Energy Ratio using a Spherical Microphone Array

Hanchi Chen, Prasanga Samarasinghe, Thushara Abhayapala, Wen Zhang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This paper proposes a practical approach to estimate the direct-toreverberant 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 methods 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.

Original language	English
Title of host publication	IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015
Place of Publication	TBC
Publisher	IEEE
Edition	Peer Reviewed
ISBN (Print)	9781479974504
DOIs	https://doi.org/10.00383
Publication status	Published - 2015
Event	IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015 - New Paltz, United States Duration: 1 Jan 2015 → …

Conference

Conference	IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015
Period	1/01/15 → …
Other	October 18-21, 2015

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@inproceedings{f55120e9d21a4b3186870863d58f68cd,

title = "Estimation of the Direct-to-Reverberant Energy Ratio using a Spherical Microphone Array",

abstract = "This paper proposes a practical approach to estimate the direct-toreverberant 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 methods 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.",

author = "Hanchi Chen and Prasanga Samarasinghe and Thushara Abhayapala and Wen Zhang",

year = "2015",

doi = "10.00383",

language = "English",

isbn = "9781479974504",

booktitle = "IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015",

publisher = "IEEE",

edition = "Peer Reviewed",

note = "IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015 ; Conference date: 01-01-2015",

}

Chen, H, Samarasinghe, P , Abhayapala, T & Zhang, W 2015, Estimation of the Direct-to-Reverberant Energy Ratio using a Spherical Microphone Array. in IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015. Peer Reviewed edn, IEEE, TBC, IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015, 1/01/15. https://doi.org/10.00383

Estimation of the Direct-to-Reverberant Energy Ratio using a Spherical Microphone Array. / Chen, Hanchi; Samarasinghe, Prasanga ; Abhayapala, Thushara et al.
IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015. Peer Reviewed. ed. TBC: IEEE, 2015.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Estimation of the Direct-to-Reverberant Energy Ratio using a Spherical Microphone Array

AU - Chen, Hanchi

AU - Samarasinghe, Prasanga

AU - Abhayapala, Thushara

AU - Zhang, Wen

PY - 2015

Y1 - 2015

N2 - This paper proposes a practical approach to estimate the direct-toreverberant 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 methods 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.

AB - This paper proposes a practical approach to estimate the direct-toreverberant 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 methods 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.

U2 - 10.00383

DO - 10.00383

M3 - Conference contribution

SN - 9781479974504

BT - IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015

PB - IEEE

CY - TBC

T2 - IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015

Y2 - 1 January 2015

ER -

Estimation of the Direct-to-Reverberant Energy Ratio using a Spherical Microphone Array

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