JDI-T: Jointly trained Duration Informed Transformer for Text-To-Speech without Explicit Alignment
Table 1: 5-scale mean opinion score
['[BOLD] Model', '[BOLD] Internal', '[BOLD] KSS']
The proposed model, JDI-T, is compared with three different models, including Tacotron2, Transformer, and FastSpeech. The audio samples for the MOS test are generated using scripts of the test samples reserved for each dataset, and thirteen native Korean speakers listen to it for measuring the audio quality. Note that the results of GT Mel are the evaluation of the audio samples converted from reference mel-spectrogram by the vocoder; thus, it indicates upper bounds that TTS models can achieve.