Utilities

Utterance-wise operations

delta(x, window)	Returns delta features given a static features and a window.
apply_delta_windows(x, windows)	Apply delta windows and combine them.
trim_zeros_frames(x[, eps])	Remove trailling zeros frames.
remove_zeros_frames(x[, eps])	Remove zeros frames.
adjast_frame_length(x, y[, pad, ensure_even])	Adjast frame lengths given two feature matrices.
scale(x, data_mean, data_std)	Mean/variance scaling.
minmax_scale(x, data_min, data_max[, …])	Min/max scaling for given a single data.

Dataset-wise operations

meanvar(dataset[, lengths])	Mean/variance computation given a iterable dataset
meanstd(dataset[, lengths])	Mean/std-deviation computation given a iterable dataset
minmax(dataset[, lengths])	Min/max computation given a iterable dataset

Files

Part of files were taken from CMU ARCTIC dataset. Example quetsion file was taken from Merlin.

example_label_file()	Get path of example HTS-style full-context lable file.
example_audio_file()	Get path of audio file.
example_question_file()	Get path of example question file.
example_file_data_sources_for_duration_model()	Get file data sources for duration model training
example_file_data_sources_for_acoustic_model()	Get file data sources for acoustic model training