Voice splicing method and voice splicing device

Abstract

The invention relates to the field of speech synthesis, and provides a speech splicing method and device, and the method comprises the steps: segmenting a rhythm phoneme sequence of a target text, generating a plurality of clause sequences, and enabling the rhythm phoneme sequence to comprise a plurality of phonemes corresponding to the target text and rhythm identifiers located between the adjacent phonemes; voice synthesis is carried out on the clause sequences, multiple pieces of first clause voice information are generated, and the first clause voice information comprises each rhythm identifier and a first duration corresponding to a phoneme; and based on the first duration and the segmentation sequence of the clause sequence corresponding to the first clause voice information in the rhythm phoneme sequence, splicing the plurality of pieces of first clause voice information, and generating target voice. According to the voice splicing method provided by the invention, the naturalness and fluency of the splicing part of the adjacent first clause voice information can be improved on the basis of not needing to preset a voice splicing unit library and not needing to carry out smooth processing on the voice units to be spliced.

Description

technical field [0001] The present application relates to the technical field of speech synthesis, and in particular, to a speech splicing method and a speech splicing device. Background technique [0002] Text to Speech (TTS) technology is widely used in the field of speech synthesis. For different clauses, the traditional splicing method only performs simple processing on the speech files corresponding to each clause, and then splices each speech file, such as waveform splicing and statistical parameter modeling splicing, etc. These methods require preset speech Splicing the unit library, or using complex algorithms to smooth the waveform connection, cannot guarantee the naturalness of the rhythm at the splicing. SUMMARY OF THE INVENTION [0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a speech splicing method. [0004] The present application also proposes a ...

AI Technical Summary

Problems solved by technology

For different clauses, traditional splicing methods only simply process the voice files corresponding to each clause and then splice each voice file, such as waveform-based splicing and statistical parameter-based modeling splicing, etc. These methods require preset voice Splicing the cell library, or using complex algorithms to smooth the joints of the waveforms, cannot guarantee the naturalness of the rhythm at the joints

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