Almost all the literature which compares CTC and encoder-decoder-attention models shows pretty well that encoder-decoder-attention performs better than CTC in t

Almost all the literature which compares CTC and encoder-decoder-attention models shows pretty well that encoder-decoder-attention performs better than CTC in the acoustic model. See for example here as an overview (my own work, already a bit outdated, but attention has even improved much more since then): https://openreview.net/pdf?id=S1gp9v_jsm https://openreview.net/pdf?id=S1gp9v_jsm