抄録
This paper addresses the problem of automatic recognition of three simultaneous speeches with two microphones, that is, that of sound source separation where the number of sound sources is greater than that of microphones. The approach used is the direction-pass filter, which is implemented by hypothetical reasoning on the interaural phase difference (IPD) and interaural intensity difference (IID). Auditory processing calculates IPD and IID for each subband, and generates hypotheses for precalculated IPD and IID for every direction including one obtained by visual processing. Then the system calculates the belief factor of hypothesis by Dempster-Shafer theory and determines the direction of each subband. Subbands of the specific direction are collected and then converted to a wave form by inverse FFT. With 200 benchmarks of three simultaneous utterances of Japanese words, the average 1-best and 10-best recognition rates of extracted speeches are 60% and 81%, respectively.
| 本文言語 | English |
|---|---|
| ホスト出版物のタイトル | EUROSPEECH 2001 - SCANDINAVIA - 7th European Conference on Speech Communication and Technology |
| 出版社 | International Speech Communication Association |
| ページ | 2643-2646 |
| ページ数 | 4 |
| ISBN（電子版） | 8790834100, 9788790834104 |
| 出版ステータス | Published - 2001 |
| 外部発表 | はい |
| イベント | 7th European Conference on Speech Communication and Technology - Scandinavia, EUROSPEECH 2001 - Aalborg, Denmark 継続期間: 2001 9月 3 → 2001 9月 7 |
Other
| Other | 7th European Conference on Speech Communication and Technology - Scandinavia, EUROSPEECH 2001 |
|---|---|
| 国/地域 | Denmark |
| City | Aalborg |
| Period | 01/9/3 → 01/9/7 |
ASJC Scopus subject areas
- 通信
- 言語学および言語
- コンピュータ サイエンスの応用
- ソフトウェア