| 講演名 | 2015-11-12 Estimation of sound pressure levels of direct sound and reflected sounds based on single-channel signal separation Irwansyah(熊本大), Taira Onoguchi(熊本大), Yoshifumi Chisaki(熊本大), |
|---|---|
| PDFダウンロードページ |  PDFダウンロードページへ |
| 抄録(和) | 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. |
| 抄録(英) | 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. |
| キーワード(和) | Sound pressure level / Single-channel signal / Direct sound / Reflected sound / Time difference of arrivals |
| キーワード(英) | Sound pressure level / Single-channel signal / Direct sound / Reflected sound / Time difference of arrivals |
| 資料番号 | EA2015-24,EMM2015-45 |
| 発行日 | 2015-11-05 (EA, EMM) |
| 研究会情報 | |
| 研究会 | EA / EMM |
|---|---|
| 開催期間 | 2015/11/12(から2日開催) |
| 開催地（和） | 熊本大学 |
| 開催地（英） | Kumamoto Univ. |
| テーマ（和） | 異種メディア融合，コンテンツ処理，メディア検索，電子透かし，一般 |
| テーマ（英） | Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics |
| 委員長氏名（和） | 羽田 陽一(電通大) / 伊藤 彰則(東北大) |
| 委員長氏名（英） | Yoichi Haneda(Univ. of Electro-Comm.) / Akinori Ito(Tohoku Univ.) |
| 副委員長氏名（和） | 岩谷 幸雄(東北学院大) / 水町 光徳(九工大) / 鵜木 祐史(北陸先端大) / 川村 正樹(山口大) |
| 副委員長氏名（英） | Yukio Iwaya(Tohoku Gakuin Univ.) / Mitsunori Mizumachi(Kyushu Inst. of Tech.) / Masashi Unoki(JAIST) / Masaki Kawamura(Yamaguchi Univ.) |
| 幹事氏名（和） | 島内 末廣(NTT) / 堀内 俊治(KDDI研) / 市野 将嗣(電通大) / 薗田 光太郎(長崎大) |
| 幹事氏名（英） | Suehiro Shimauchi(NTT) / Toshiharu Horiuchi(KDDI R&D Labs.) / Masatsugu Ichino(Univ. of Electro-Comm.) / Kotaro Sonoda(Nagasaki Univ.) |
| 幹事補佐氏名（和） | 小山 翔一(東大) / 岩田 基(阪府大) / 河野 和宏(関西大) |
| 幹事補佐氏名（英） | Shoichi Koyama(Univ. of Tokyo) / Motoi Iwata(Osaka Pref. Univ.) / Kazuhiro Kohno(Kansai Univ.) |
| 講演論文情報詳細 | |
| 申込み研究会 | Technical Committee on Engineering Acoustics / Technical Committee on Enriched MultiMedia |
|---|---|
| 本文の言語 | ENG |
| タイトル（和） | |
| サブタイトル（和） | |
| タイトル（英） | Estimation of sound pressure levels of direct sound and reflected sounds based on single-channel signal separation |
| サブタイトル（和） | |
| キーワード(1)（和/英） | Sound pressure level / Sound pressure level |
| キーワード(2)（和/英） | Single-channel signal / Single-channel signal |
| キーワード(3)（和/英） | Direct sound / Direct sound |
| キーワード(4)（和/英） | Reflected sound / Reflected sound |
| キーワード(5)（和/英） | Time difference of arrivals / Time difference of arrivals |
| 第 1 著者 氏名（和/英） | Irwansyah / Irwansyah |
| 第 1 著者 所属（和/英） | Kumamoto University(略称：熊本大) Kumamoto University(略称：Kumamoto Univ.) |
| 第 2 著者 氏名（和/英） | Taira Onoguchi / Taira Onoguchi |
| 第 2 著者 所属（和/英） | Kumamoto University(略称：熊本大) Kumamoto University(略称：Kumamoto Univ.) |
| 第 3 著者 氏名（和/英） | Yoshifumi Chisaki / Yoshifumi Chisaki |
| 第 3 著者 所属（和/英） | Kumamoto University(略称：熊本大) Kumamoto University(略称：Kumamoto Univ.) |
| 発表年月日 | 2015-11-12 |
| 資料番号 | EA2015-24,EMM2015-45 |
| 巻番号（vol） | vol.115 |
| 号番号（no） | EA-302,EMM-303 |
| ページ範囲 | pp.1-6(EA), pp.1-6(EMM), |
| ページ数 | 6 |
| 発行日 | 2015-11-05 (EA, EMM) |