Multi-dialect accent mandarin voice recognition model training method and device, and equipment

Abstract

The invention provides a multi-dialect accent mandarin voice recognition model training method and device, and equipment, and relates to the technical field of language recognition. The method comprises the steps of obtaining a training sample; training by using standard mandarin voice data with labels to obtain an initial acoustic model, and training by using text data to obtain an initial language model; iteratively training an initial acoustic model based on the unlabeled dialect mandarin voice data to obtain a target acoustic model; training to obtain a temporary language model by using ato-be-trained text recognized by the target acoustic model and the initial language model, and combining the temporary language model with the initial language model to obtain a target language model;and combining the target acoustic model and the target language model into a multi-dialect accent mandarin speech recognition model. A large amount of dialect accent mandarin voice data which are notlabeled are used for iterative training, a multi-dialect accent mandarin voice recognition model is obtained, and the dialect accent mandarin voice recognition accuracy is improved.

Description

technical field [0001] The present invention relates to the technical field of speech recognition, in particular to a multi-dialect Mandarin speech recognition model training method, device and equipment. Background technique [0002] With the improvement of the performance of the Internet and other mobile terminals, intelligent products based on speech recognition technology are more and more popular in industrial production and daily life, such as voice dialogue robots, voice assistants, interactive tools, etc. However, my country is a country with multiple dialects. People living in various regions will have a large degree of accent when expressing in Mandarin, which will cause a mismatch with the standard Mandarin model and result in low speech recognition accuracy. [0003] At present, multi-model research can be carried out based on temporal neural networks to realize the recognition of Mandarin accents. Among them, based on the multi-model recognition method, differe...

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Problems solved by technology

[0005] The object of the present invention is to, aiming at the deficiencies in the above-mentioned prior art, provide a kind of multi-dialect accent Mandarin speech recognition model training method, device and equipment, so that make full use of the speech data without label to strengthen the training of the model, avoid in practice Due to the limitation of the lack of labeled training sample data in the application, the final recognition accuracy is not high

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