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01-07-2019 | Issue 4/2019

Automatic Control and Computer Sciences 4/2019

LSTM-Based Robust Voicing Decision Applied to DNN-Based Speech Synthesis

Journal:
Automatic Control and Computer Sciences > Issue 4/2019
Authors:
R. Pradeep, M. Kiran Reddy, K. Sreenivasa Rao

Abstract

The quality of statistical parametric speech synthesis (SPSS) relies on voiced/unvoiced classification. Errors in voicing decision can contribute to significant degradation in speech quality. This paper proposes a robust voicing detection method based on power spectrum and long short term memory (LSTM) network for SPSS. The performance of the proposed method is evaluated using CMU Arctic, Keele and MIR-1K databases. Further, the effectiveness of the proposed method is analyzed for deep neural network (DNN)-based SPSS. The results show that the proposed method can better classify the voiced and unvoiced speech segments, which significantly improves the speech quality.

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