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Formant Estimation Method Using Inverse-Filter Control
http://hdl.handle.net/2298/3523
http://hdl.handle.net/2298/3523f4ed5e86-43c8-470a-955d-7fa845ca4148
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
scansnap003.pdf (3.2 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2007-08-15 | |||||
| タイトル | ||||||
| タイトル | Formant Estimation Method Using Inverse-Filter Control | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | Formant estimation, inverse-filter control, zerocrossing frequency | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Watanabe, A.
× Watanabe, A. |
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| 別言語の著者 |
渡邉, 亮
× 渡邉, 亮 |
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| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | This paper proposes a new method for estimating formant frequencies of speech signals, based on inverse-filter control and zero-crossing frequency distributions. In this method, which is called the inverse-filter control (IFC) method, we use 32 basic inverse filters that are mutually controlled by weighted means of zero-crossing frequency distributions. After quick convergence of the inverse filters, we can gain four to six formant frequencies as final mean-values of the zero-crossing frequencies. The proposed method (IFC) has a specific feature that it directly estimates resonant frequencies of a vocal tract, unlike analysis-by-synthesis (A-b-S) or linear predictive coding (LPC) as a spectral matching method. Therefore, spectral shapes influence indirectly alone the formant estimation in the IFC. Although the superiority of IFC to LPC was not necessarily prominent in the systematic evaluation using synthetic speech, the estimates showed satisfactorily small errors for the practical analysis. On the other hand, when observing some analysis examples of real speech, we found many fewer gross errors in IFC than in LPC. Last, we describe in brief a method for estimating a spectral envelope (or formant bandwidths) based on the obtained formant frequencies and the spectrum to be analyzed. According to the results, it is understandable that the existence of the wide-band formants also contributes to stable formant trajectories | |||||
| 書誌情報 |
IEEE Transactions on Speech and Audio Processing 巻 9, 号 4, p. 317-326, 発行年 2001-05 |
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| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10888994 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 関連識別子 | 10.1109/89.917677 | |||||
| 権利 | ||||||
| 権利情報 | c2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. IEEE, IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, 9, 4, 2001, 317-326 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 形態 | ||||||
| 値 | 3197797 bytes | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 500 | |||||
| 出版者 | ||||||
| 出版者 | Institute of Electrical and Electronics Engineers | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 論文(Article) | |||||
| 資源タイプ・ローカル | ||||||
| 値 | 雑誌掲載論文 | |||||
| 資源タイプ・NII | ||||||
| 値 | Journal Article | |||||
| 資源タイプ・DCMI | ||||||
| 値 | text | |||||
| 資源タイプ・ローカル表示コード | ||||||
| 値 | 01 | |||||
