Time-scale and pitch modifications of speech signals and resynthesis from the discrete short-time Fourier transform

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Veldhuis, Raymond and He, Haiyan (1996) Time-scale and pitch modifications of speech signals and resynthesis from the discrete short-time Fourier transform. Speech Communication, 18 (3). pp. 257-279. ISSN 0167-6393

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Abstract:The modification methods described in this paper combine characteristics of PSOLA-based methods and algorithms that resynthesize speech from its short-time Fourier magnitude only. The starting point is a short-time Fourier representation of the signal. In the case of duration modification, portions, in voiced speech corresponding to pitch periods, are removed from or inserted in this representation. In the case of pitch modification, pitch periods are shortened or extended in this representation, and a number of pitch periods is inserted or removed, respectively. Since it is an important tool for both duration and pitch modification, the resynthesis-from-short-time-Fourier-magnitude-only method of Griffin and Lim (1984) and Griffin et al. (1984) is reviewed and adapted. Duration and pitch modification methods and their results are presented.

Item Type:Article
Copyright:© 1996 Elsevier Science
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/62777
Official URL:http://dx.doi.org/10.1016/0167-6393(95)00044-5
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