Native and non-native speaker judgements on the quality of synthesized speech
Anna C. Janska, Robert Alfred Clark · 2010
The difference between native speakers ’ and non-native speakers’ naturalness judgements of synthetic speech is investigated. Similar/difference judgements are analysed via a multidimensional scaling analysis and compared to Mean opinion scores. It is shown that although the two groups generally behave in a similar manner the variance of non-native speaker judgements is generally higher. While both groups of subject can clearly distinguish natural speech from the best synthetic examples, the groups ’ responses to different artefacts present in the synthetic speech can vary. Index Terms: speech synthesis, evaluation, non-native 1.