Presentation 2014-06-19
An Evaluation through Simulation for Direct F_0 Control of an Electrolarynx based on Statistical Excitation Feature Prediction
Kou TANAKA, Tomoki TODA, Graham NEUBIG, Sakriani SAKTI, Satoshi NAKAMURA,
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Abstract(in English) An electrolarynx is a device that artificially generates excitation sounds to enable laryngectomees to produce electrolaryngeal (EL) speech. Although proficient laryngectomees can produce quite intelligible EL speech, it sounds very unnatural due to the mechanical excitation produced by the device. To address this issue, we have proposed several EL speech enhancement methods using statistical excitation prediction, which was essential to significantly improve naturalness by predicting excitation parameters of normal speech. In these methods, the original EL speech is recorded with a microphone and the enhanced EL speech is presented from a loudspeaker in real time. This framework is effective for telecommunication but it is not suitable to face-to-face conversation because both the original EL speech and the enhanced EL speech are presented to listeners. In this paper, we propose direct F_0 control of the electrolarynx based on the statistical excitation prediction also effective for face-to-face conversation. A simulation experiment is conducted to evaluate the effectiveness of the proposed method. The experimental result shows that our proposed system enables laryngectomees to produce more natural EL speech.
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Keyword(in English) electrolarynx / electrolaryngeal speech / statistical excitation prediction / Direct F_0 control / evaluation through simulation
Paper # SP2014-52,WIT2014-7
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Committee WIT
Conference Date 2014/6/12(1days)
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Registration To Well-being Information Technology(WIT)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Evaluation through Simulation for Direct F_0 Control of an Electrolarynx based on Statistical Excitation Feature Prediction
Sub Title (in English)
Keyword(1) electrolarynx
Keyword(2) electrolaryngeal speech
Keyword(3) statistical excitation prediction
Keyword(4) Direct F_0 control
Keyword(5) evaluation through simulation
1st Author's Name Kou TANAKA
1st Author's Affiliation Graduate School of Information Science, Nara Institute of Science and Technology()
2nd Author's Name Tomoki TODA
2nd Author's Affiliation Graduate School of Information Science, Nara Institute of Science and Technology
3rd Author's Name Graham NEUBIG
3rd Author's Affiliation Graduate School of Information Science, Nara Institute of Science and Technology
4th Author's Name Sakriani SAKTI
4th Author's Affiliation Graduate School of Information Science, Nara Institute of Science and Technology
5th Author's Name Satoshi NAKAMURA
5th Author's Affiliation Graduate School of Information Science, Nara Institute of Science and Technology
Date 2014-06-19
Paper # SP2014-52,WIT2014-7
Volume (vol) vol.114
Number (no) 92
Page pp.pp.-
#Pages 6
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