Front end design-based speech synthesis method

Abstract

The invention provides a front end design-based speech synthesis method and belongs to the technical field of speech synthesis. With the front end design-based speech synthesis method of the inventionadopted, the problem of data dependence and uncontrollable synthetic effect of a current speech synthesis method can be solved. According to the technical schemes of the invention, the method includes the following steps that: step 1, Chinese text data are preprocessed; step 2, linguistic features related to the Chinese text are extracted; step 3, at least two acoustic features of an audio file are extracted; step 4, a duration model and an acoustic model are trained according to the linguistic features and the acoustic features; step 5, the duration model obtained in the step 4 is called toobtain duration information corresponding to the Chinese text which requires synthesis and has been processed in the step 1 and step 2, with the linguistic features and the duration information adopted as the input of the acoustic model, so that corresponding acoustic features can be obtained; and step 6, the acoustic features obtained in the step 5 are synthesized into corresponding audio data with a vocoder.

Description

technical field [0001] The invention relates to speech synthesis technology, in particular to the technology of speech synthesis method based on front-end design. Background technique [0002] Speech synthesis is the technology of producing intelligible and fluent speech through mechanical and electronic methods. With the rapid development of technology in the field of artificial intelligence, the existing speech synthesis technology has gradually shifted from the traditional feature extraction algorithm based on hmm to the use of deep learning technology, by recording high-quality audio data of a large number of speakers, and then through the neural network model. Training, get speech synthesis model, and directly synthesize audio data end-to-end. Such methods can synthesize high-quality speech, but are highly data-dependent and the synthesis effect is uncontrollable. Contents of the invention [0003] The purpose of the present invention is to provide a speech synthesi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a speech synthesis method based on front-end design to solve the problems of data dependence and uncontrollable synthesis effect of the current speech synthesis method