| Presentation | 2015-11-12 Estimation of sound pressure levels of direct sound and reflected sounds based on single-channel signal separation Irwansyah, Taira Onoguchi, Yoshifumi Chisaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recent studies have shown that the reflected sounds from nearby buildings affect the speech intelligibility of public address (PA) systems. Therefore, the PA system volumes and the loudspeaker directions should be adjusted to compensate for the effect of reflected sounds which can change over time due to building construction. This study aims at estimating the sound pressure levels (SPLs) of direct sound and reflected sounds that can be taken as a consideration before adjusting the PA systems. This paper proposes an approach for separating direct sound and reflected sounds that employs time-frequency information of a single-channel signal. This method consists of three steps: (1) the estimation of time difference of arrivals (TDOAs) between direct sound and reflected sounds, (2) the estimation of reflected-to-direct gain ratios (RDRs), and (3) the single-channel signal separation based on (1) and (2) in frequency domain. Numerical tests were conducted to evaluate the performance of the proposed method. The results show that the proposed method is able to separate direct sound and up to five reflected sounds as well as estimate its SPLs. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Sound pressure level / Single-channel signal / Direct sound / Reflected sound / Time difference of arrivals |
| Paper # | EA2015-24,EMM2015-45 |
| Date of Issue | 2015-11-05 (EA, EMM) |
| Conference Information | |
| Committee | EA / EMM |
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| Conference Date | 2015/11/12(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kumamoto Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics |
| Chair | Yoichi Haneda(Univ. of Electro-Comm.) / Akinori Ito(Tohoku Univ.) |
| Vice Chair | Yukio Iwaya(Tohoku Gakuin Univ.) / Mitsunori Mizumachi(Kyushu Inst. of Tech.) / Masashi Unoki(JAIST) / Masaki Kawamura(Yamaguchi Univ.) |
| Secretary | Yukio Iwaya(NTT) / Mitsunori Mizumachi(KDDI R&D Labs.) / Masashi Unoki(Univ. of Electro-Comm.) / Masaki Kawamura(Nagasaki Univ.) |
| Assistant | Shoichi Koyama(Univ. of Tokyo) / Motoi Iwata(Osaka Pref. Univ.) / Kazuhiro Kohno(Kansai Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Enriched MultiMedia |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Estimation of sound pressure levels of direct sound and reflected sounds based on single-channel signal separation |
| Sub Title (in English) | |
| Keyword(1) | Sound pressure level |
| Keyword(2) | Single-channel signal |
| Keyword(3) | Direct sound |
| Keyword(4) | Reflected sound |
| Keyword(5) | Time difference of arrivals |
| 1st Author's Name | Irwansyah |
| 1st Author's Affiliation | Kumamoto University(Kumamoto Univ.) |
| 2nd Author's Name | Taira Onoguchi |
| 2nd Author's Affiliation | Kumamoto University(Kumamoto Univ.) |
| 3rd Author's Name | Yoshifumi Chisaki |
| 3rd Author's Affiliation | Kumamoto University(Kumamoto Univ.) |
| Date | 2015-11-12 |
| Paper # | EA2015-24,EMM2015-45 |
| Volume (vol) | vol.115 |
| Number (no) | EA-302,EMM-303 |
| Page | pp.pp.1-6(EA), pp.1-6(EMM), |
| #Pages | 6 |
| Date of Issue | 2015-11-05 (EA, EMM) |