NDLI: High quality voice manipulation method based on the vocal tract area function obtained from sub-band LSP of straight spectrum

Content Provider	IEEE Xplore Digital Library
Author	Arakawa, A. Uchimura, Y. Banno, H. Itakura, F. Kawahara, H.
Copyright Year	2010
Description	Author affiliation: Graduate School of Science and Technology, Meijo University, Siogamaguchi 1-501, Tempaku-ku, Nagoya-shi, Aichi, 468-5802, Japan (Arakawa, A.; Uchimura, Y.; Banno, H.; Itakura, F.) \|\| Faculty of Systems Engineering, Wakayama University, Sakaedani 930, Wakayama-shi, 640-8510, Japan (Kawahara, H.)
Abstract	This paper describes a high-quality manipulation method of voice quality base on the vocal tract area function (VTAF) obtained from sub-band LSP of STRAIGHT spectrum. Our research group had developed the manipulation technique of voice quality based on VTAF that can generate natural formant transition. However, it is observed that the generated sound sometimes results in degradation when the input signal has a high sampling frequency. Therefore, we develop a new method that extracts VTAF properly from such input signal. This method firstly divides the input spectral envelope represented by STRAIGHT spectrum into lower and higher frequency bands, secondly extracts the Line spectrum pair (LSP) in each frequency band after spectral flattening that is appropriate for the frequency band, thirdly concatenates a pair of the sub-band LSP, and finally obtains VTAF from PARCOR coefficients converted from the concatenated LSP. A subjective experiment proved that the proposed method is high quality enough.
Starting Page	4834
Ending Page	4837
File Size	192270
Page Count	4
File Format	PDF
ISBN	9781424442959
ISSN	15206149
DOI	10.1109/ICASSP.2010.5495142
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-03-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speech analysis Shape Adaptive filters Sampling methods Human voice Degradation Frequency conversion Linear predictive coding Signal generators Signal design Vocal system Speech synthesis Vocoders
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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