Parameter generation

Numpy implementation of speech parameter generation algorithm.

build_win_mats(windows, T)

Builds a window matrix of a given size for each window in a collection.

mlpg(mean_frames, variance_frames, windows)

Maximum Parameter Likelihood Generation (MLPG)

mlpg_grad(mean_frames, variance_frames, …)

MLPG gradient computation

unit_variance_mlpg_matrix(windows, T)

Compute MLPG matrix assuming input is normalized to have unit-variances.

reshape_means(means, static_dim)

Reshape means (T x D) to (T*num_windows x static_dim).