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A ANN Based High Quality Method for Voice Conversion

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2 Author(s)
Chen, Z. ; Coll. of Telecommun. & Inf. Eng., Nanjing Univ. of Post & Telecommun., Nanjing, China ; Zhang, L.H.

In this paper, we describe a novel conversion method for voice conversion (VC). Artificial Neural Network (ANN) model is employed for performing joint spectrum and pitch conversion between speakers. The conventional method converts spectral parameters and pitch independently. Those separate transformations lead to an unsatisfactory speech quality. The main reason maybe that F0 sequences are usually converted by a simply linear function. To overcome this problem, we apply joint parameters for train and conversion. A comparative study of voice conversion with ANN and Gaussian Mixture Model (GMM) is conducted. Experimental results indicate that the performance of VC can be dramatically improved by the proposed method in view of both subjective evaluation and objective measurement.

Published in:

Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on

Date of Conference:

23-25 Sept. 2010