The effect of amplitude envelope blending across frequency bands on the quality of noise-vocoded speech

Kazuo Ueda, Tomoya Araki, Yoshitaka Nakajima

研究成果: 著書/レポートタイプへの貢献会議での発言

抜粋

Ueda and Nakajima [Trans. Tech. Comm. Psychol. Physiol. Acoust., 38, 771-776, (2008); 39, 211-216, (2009)] found a consistent clustering of frequency bands common to different languages through factor analyses applied to power fluctuations of critical-band filtered speech sounds. One of the factors exhibited a characteristic shape of two peaks, which implied a correlation between a pair of distant frequency bands. The present study examined how amplitude envelope independence across frequency bands affected perception of Japanese noise-vocoded speech. The results indicated that the 20- and 4-band-synthesis conditions exhibited nearly perfect performances without any systematic training or feedback, and that the conditions in which the lowest and the next lowest frequency band blended, keeping a long-term spectrum energy distribution (sharpness) constant, yielded low mora accuracy. Those results indicated that noise-vocoded speech synthesized with the 4 frequency bands contained enough information for speech perception.

元の言語英語
ホスト出版物のタイトル8th European Conference on Noise Control 2009, EURONOISE 2009 - Proceedings of the Institute of Acoustics
エディションPART 3
出版物ステータス出版済み - 12 1 2009
イベント8th European Conference on Noise Control 2009, EURONOISE 2009 - Edinburgh, 英国
継続期間: 10 26 200910 28 2009

出版物シリーズ

名前8th European Conference on Noise Control 2009, EURONOISE 2009 - Proceedings of the Institute of Acoustics
番号PART 3
31

その他

その他8th European Conference on Noise Control 2009, EURONOISE 2009
英国
Edinburgh
期間10/26/0910/28/09

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

これを引用

Ueda, K., Araki, T., & Nakajima, Y. (2009). The effect of amplitude envelope blending across frequency bands on the quality of noise-vocoded speech. : 8th European Conference on Noise Control 2009, EURONOISE 2009 - Proceedings of the Institute of Acoustics (PART 3 版). (8th European Conference on Noise Control 2009, EURONOISE 2009 - Proceedings of the Institute of Acoustics; 巻数 31, 番号 PART 3).