The development of pathological speech systems is currently hindered by the
lack of a standardised objective evaluation framework. In this work, (1) we
utilise existing detection and analysis techniques to propose a general
framework for the consistent evaluation of synthetic pathological speech. This
framework evaluates the voice quality and the intelligibility aspects of speech
and is shown to be complementary using our experiments. (2) Using our proposed
evaluation framework, we develop and test a dysarthric voice conversion system
(VC) using CycleGAN-VC and a PSOLA-based speech rate modification technique. We
show that the developed system is able to synthesise dysarthric speech with
different levels of speech intelligibility.

利用现有的检测和分析技术，本文提出了一个评估综合框架，用于评估不同水平言语清晰度的发音障碍语音合成。该框架可评估语音质量和可懂性方面，且经实验证明具有互补性。使用我们提出的评估框架，我们发展和测试了一种发音障碍语音转换系统，并展示其表现良好。