Acoustic model establishing method and device, speech synthesis method and device, facility and storage medium

Abstract

The embodiment of the invention discloses an acoustic model establishing method, an acoustic model establishing device, a speech synthesis method, a speech synthesis device, a facility and a storage medium. The acoustic model establishing method comprises the following steps: acquiring a phoneme sequence sample of a plurality of training samples from a corpus, and acquiring the context feature ofeach phoneme and the duration of each phoneme in the phoneme sequence sample, wherein the rhotic accent phoneme in the phoneme sequence sample is split to two phonemes; extracting acoustic features from the training samples; and by adopting the phoneme sequence sample, training the acoustic model by taking the context feature of each phoneme and the duration of each phoneme in the phoneme trainingsample as the input of the acoustic model and the acoustic features as the output of the acoustic model, so that the pretrained acoustic model is obtained. The modeling performance of the rhotic accent is good, the synthesis of the rhotic accent can be well realized, then the rhotic accent not appearing in the corpus can be synthesized, and meanwhile, the recording cost of linguistic data in thecorpus can be reduced.

Description

technical field [0001] Embodiments of the present invention relate to the field of information-to-speech synthesis, and in particular, relate to an acoustic model establishment, speech synthesis method, device, equipment, and storage medium. Background technique [0002] With the continuous development of multimedia communication technology, speech synthesis technology, which is one of the important ways of human-computer interaction, has attracted extensive attention of researchers because of its convenience and speed. Speech synthesis is a technology that generates artificial voice through mechanical and electronic methods. It is a technology that converts text information generated by the computer itself or externally input into intelligible and fluent spoken language output. The purpose of speech synthesis is to convert text into speech and play it to users, and the goal is to achieve the effect of live text broadcasting. [0003] Speech synthesis technology has been wi...

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Problems solved by technology

During the specific implementation process, the inventor found the following problems in the prior art: if the common application scenarios are covered, more corpus needs to be recorded to establish an acoustic model with better effect of synthesizing tones, but the cost of corpus recording is relatively high ; If there are fewer recordings of Erhuayin, it is easy to cause the problem of poor Erhuayin modeling in the acoustic model; it is also impossible to borrow the existing final phonemes in the corpus to model Erhuayin, and it is impossible to synthesize the speech synthesis library. Er Hua Yin

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