Method and system for generating synthetic speech for text through user interface

A method for generating a synthetic speech for text through a user interface, the method comprising:

• receiving a plurality of sentences;
• displaying the plurality of sentences in a first font style on the user interface;
• determining a speech style characteristic for the received plurality of sentences, wherein the determining the speech style characteristic for the received plurality of sentences includes determining the speech style characteristic for a set of sentences among the plurality of sentences as a specific speech style characteristic;
• receiving a change of a font style of text for a part of the set of sentences being displayed from the first font style to a second font style through the user interface;
• in response to receiving the change of the font style of text for the part of the set of sentences from the first font style to the second font style through the user interface:
• displaying the text for the part of the set of sentences in the second font style;
• and
• modifying the part of detailed characteristics of the specific speech style characteristic for the part of the set of sentences to obtain a modified specific speech style characteristic based on the change of the font style, wherein other part of the detailed characteristics of the specific speech style characteristic for remaining part of the set of sentences are maintained;
• obtaining an embedding vector related to the specific speech style characteristics;
• obtaining another embedding vector related to the modified specific speech style characteristics;
• outputting a synthetic speech for the part of the set of sentences based on the another embedding vector and another character embeddings generated based on the part of the set of sentences;
• and
• outputting another synthetic speech for the remaining part of the set of sentences based on the embedding vector and character embeddings generated based on the remaining part of the set of sentences,
• wherein the determined speech style characteristic for the set of sentences includes the modified detailed characteristics for the part of the set of sentences and original detailed characteristics for other part of the set of sentences, and
• the plurality of sentences and the determined speech style characteristic are inputted to an artificial neural network text-to-speech synthesis model and the synthetic speech is generated based on speech data outputted from the artificial neural network text-to-speech synthesis model.