上智大学オープン・リサーチ・センター ヒューマンコミュニケーショングループ
～2010年度 第1回研究会のご案内～
| 講演者： |
B. Yegnanarayana 先生 (Professor & Microsoft Chair, IIIT Hyderabad, India) |
| タイトル： | Acoustic correlates of perceived loudness of speech produced indifferent contexts |
| 日時： | 2010年10月6日(水) 13:45～ |
| 会場： | 上智大学 中央図書館8階会議室 L-821 |
| その他： | 参加費：無料、参加申込：不要、使用言語：英語 |
| 講演概要： | Several measures of loudness of speech have been proposed in the literature, based on the physiological characteristics of speech production and acoustic characteristics of the speech signal. The acoustic correlates of loudness include features of the glottal wave (such as closed quotient, open quotient and closing quotient), and spectral features derived from speech (such as spectral tilt, measure of spectral energy in the high frequency region relative to that in the low frequency region, harmonic richness, and sharpness of the spectral peaks at formant frequencies). A new measure is proposed based on the impulse-like nature of the glottal excitation, which seems to help in describing the characteristics of loud and soft voices in relation to normal voice. It is interesting to note that this measure is not useful to describe the perceived loudness in other contexts, such as speech produced at different speaking rates, or when speech is produced in adverse environments causing Lombard effect. This talk illustrates the need for evolving different measures for perceived loudness for speech produced under different contexts. |
| 主催： | 上智大学 オープン・リサーチ・センター 「人間情報学研究センター」 |
| URL ： | http://www.splab.ee.sophia.ac.jp/~orc/ |
| 共催： | 日本音声学会 |
| お問い合せ先： | 上智大学 理工学部 情報理工学科 荒井隆行 （arai@sophia.ac.jp） |