Phase unwrapping methods for quadratic phase interpolation in voiced speech sythesis

Author

Yang, Haiyun ; Koh, Soo Ngee ; Sivaprakasapillai, P.

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore

Volume

1

fYear

1993

fDate

6-11 Sep 1993

Firstpage

295

Abstract

This paper considers the use of a quadratic polynomial for phase interpolation in voiced speech synthesis using the multi-band excitation (MBE) model. The problem of phase unwrapping when using quadratic interpolation, originally proposed by Griffin and Lim (1988), is examined. In addition to that, another three new methods for phase unwrapping are studied. For the purpose of comparing the different unwrapping methods used for quadratic interpolation, the four unwrapping methods are used to synthesize voiced speech using the MBE model. Both the theoretical analysis and simulation results show that the fourth phase unwrapping method outperforms the other methods for voiced speech synthesis

Keywords

interpolation; phase estimation; polynomials; speech synthesis; multiband excitation model; phase unwrapping; quadratic phase interpolation; quadratic polynomial; voiced speech synthesis; Frequency measurement; Frequency synthesizers; Interpolation; Phase measurement; Polynomials; Signal analysis; Signal synthesis; Speech analysis; Speech synthesis; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Networks, 1993. International Conference on Information Engineering '93. 'Communications and Networks for the Year 2000', Proceedings of IEEE Singapore International Conference on

Print_ISBN

0-7803-1445-X

Type

conf

DOI

10.1109/SICON.1993.515774

Filename

515774