@techreport{oai:ipsj.ixsq.nii.ac.jp:00211611,
 author = {山本, 絢子 and 入野, 俊夫 and 新井, 賢一 and 荒木, 章子 and 小川, 厚徳 and 木下, 慶介 and 中谷, 智広 and Ayako, Yamamoto and Toshio, Irino and Kenichi, Arai and Shoko, Araki and Atsunori, Ogawa and Keisuke, Kinoshita and Tomohiro, Nakatani},
 issue = {36},
 month = {Jun},
 note = {今まで音声了解度の客観評価指標を開発することを目的として，数多くの主観評価実験が行われてきた．しかし，コロナ禍により密閉した防音室で実験を行うことが非常に困難となった．遠隔実験に頼ったデータ収集を行わざるを得ないが，聴取条件の統制ができないため収集したデータの信頼性が明確でない．そこで，本研究ではクラウドソーシングを利用した遠隔実験と防音室で行われた実験による音声了解度を対比した．遠隔実験のほうが語音聴取閾値 (SRT) が若干高く，標準偏差も大きかった．しかし，音声強調処理条件間での SRT の大小関係は防音室実験と同じ傾向を示し，客観評価指標の開発に利用可能であることが示唆された．また，練習問題正解数が SRT 値と唯一相関があるものとして抽出された．これは，本番試験を行う前に得られる事前情報であり，この情報により SRT の偏差を減らすことが可能である．, Many subjective experiments have been performed to develop objective speech intelligibility measures, but the novel coronavirus outbreak has made it very difficult to conduct experiments in a laboratory. One solution is to perform remote testing using crowdsourcing; however, because we cannot control the listening conditions, it is unclear whether the results are entirely reliable. In this study, we compared speech intelligibility scores obtained in remote and laboratory experiments. The results showed that the mean and standard deviation (SD) of the remote experiments’ speech reception threshold (SRT) were higher than those of the laboratory experiments. However, the variance in the SRTs across the speech-enhancement conditions revealed similarities, implying that remote testing results may be as useful as laboratory experiments to develop an objective measure. We also show that the practice session scores correlate with the SRT values. This is a priori information before performing the main tests and would be useful for data screening to reduce the variability of the SRT distribution.},
 title = {クラウドソーシングを利用した音声了解度実験～ウェブページ制作からデータスクリーニング～},
 year = {2021}
}