Data files Data files are available for download from this page. File descriptions test.npy - test features train.npy - train features dev.npy - development/validation features train_labels.npy - training labels dev_labels.npy - development/validation labels sample_submission.csv - sample submission in correct format. Submission is a single silence phoneme (".") for each utterance. phoneme_list.py - list of phoneme full names, and list of phoneme single-character encodings. Feature Files Same data layout as previously. Label Files Array length is the number of utterances. Each item in the array is an array that is the length of the number of phonemes in that utterance. The labels are [0-40], 41 phonemes.