Word vectorization model learning device, word vectorization device, speech synthesizer, method and program thereof

摘要

Provided is a word vectorization device that converts a word into a word vector that also takes into account the acoustic characteristics of the word. The word vectorization model learning device includes a vector wL, s (t) indicating the word yL, s (t) included in the learning text data, and an acoustic feature amount of the speech data corresponding to the learning text data. Includes a learning unit that learns a word vectorization model using the acoustic features afL, s (t) corresponding to yL, s (t). The word vectorization model includes a neural network which receives a vector indicating a word as an input and outputs an acoustic feature amount of audio data corresponding to the word, and the word vectorization model defines an output value of any intermediate layer as a word vector. Model.