Deep Speech 2: End-to-End Speech Recognition in English and Mandarin
Table 14: Comparing WER of the DS1 system to the DS2 system on accented speech.
['Accented Speech Test set', 'Accented Speech DS1', 'Accented Speech DS2', 'Accented Speech Human']
Performance on these test sets is to some extent a measure of the breadth and quality of our training data. However human level performance is still notably better than that of DS2 for all but the Indian accent.