Method and system for generating fundamental frequency parameters in singing synthesis

Abstract

The invention relates to the technical field of speech synthesis processing, and discloses a method and system for generating fundamental frequency parameters in singing synthesis. The method comprises the steps: receiving numbered musical notation information to be synthesized, wherein the numbered musical notation information comprises lybric labels, pitch labels, duration labels and rhythm information; determining a theoretical fundamental frequency parameter of each basic synthesis unit according to the pitch labels; determining a fundamental frequency reference model of each basic synthesis unit according to the lybric labels; optimizing the theoretical fundamental frequency parameters of the basic synthesis units according to the fundamental frequency reference models of the basic synthesis units. By means of the method and system for generating the fundamental frequency parameters in singing synthesis, not only can the stability of the fundamental frequency parameters be ensured, but also the fundamental frequency parameters can conform to the phonation characteristics and the fundamental frequency range of speakers, and the sound of a synthetic speech is improved effectively.

Description

technical field [0001] The invention relates to the technical field of speech synthesis processing, in particular to a method and system for generating fundamental frequency parameters in singing synthesis. Background technique [0002] In recent years, singing synthesis systems have been extensively studied and applied, including parametric synthesis systems based on Hidden Markov Model (HMM) and systems based on waveform splicing synthesis. Compared with the system based on waveform splicing and synthesis, the parametric synthesis method requires less training data and smaller system scale, so it has better practical value. The singing synthesis system based on parametric synthesis first determines the duration parameter sequence, fundamental frequency parameter sequence and spectrum parameter sequence of each basic synthesis unit (such as syllable, phoneme, etc.), and then uses the parametric synthesizer to obtain continuous singing signals according to each parameter seq...

AI Technical Summary

Problems solved by technology

This method is simple and efficient, but because the marked pitch of the numbered notation does not necessarily satisfy the speaker's range distribution, there is an obvious discrepancy between the fundamental frequency parameters obtained according to the standard pitch and the speaker's spectral parameters, which affects the listening of synthesized speech. sense

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