HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
情報科学研究科  >
雑誌発表論文等  >

A Noise-Robust Continuous Speech Recognition System Using Block-Based Dynamic Range Adjustment

フルテキスト
TISe95D-3_844-852.pdf1.16 MBPDF見る/開く
この文献へのリンクには次のURLを使用してください:http://hdl.handle.net/2115/49207

タイトル: A Noise-Robust Continuous Speech Recognition System Using Block-Based Dynamic Range Adjustment
著者: Sun, Yiming 著作を一覧する
Miyanaga, Yoshikazu 著作を一覧する
キーワード: CMS
CSR
DRA
noise-robust
RSA
発行日: 2012年 3月 1日
出版者: Institute of Electronics, Information and Communication Engineers
誌名: IEICE Transactions on Information and Systems
巻: E95D
号: 3
開始ページ: 844
終了ページ: 852
出版社 DOI: 10.1587/transinf.E95.D.844
抄録: A new approach to speech feature estimation under noise circumstances is proposed in this paper. It is used in noise-robust continuous speech recognition (CSR). As the noise robust techniques in isolated word speech recognition, the running spectrum analysis (RSA), the running spectrum filtering (RSF) and the dynamic range adjustment (DRA) methods have been developed. Among them, only RSA has been applied to a CSR system. This paper proposes an extended DRA for a noise-robust CSR system. In the stage of speech recognition, a continuous speech waveform is automatically assigned to a block defined by a short time length. The extended DRA is applied to these estimated blocks. The average recognition rate of the proposed method has been improved under several different noise conditions. As a result, the recognition rates are improved up to 15% in various noises with 10 dB SNR.
Rights: Copyright © 2012 The Institute of Electronics, Information and Communication Engineers
関連URI: http://search.ieice.org/
資料タイプ: article
URI: http://hdl.handle.net/2115/49207
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 孫 一鳴

 

本サイトに関するご意見・お問い合わせは repo at lib.hokudai.ac.jp へお願いします。 - 北海道大学