A Speech Recognition Method Based on Isolated Words and Range Hood Applying the Method

Abstract

The invention relates to a speech recognition method based on isolated words, comprising the following steps: training a template speech to form a speech template library; The template speech and the speech of each isolated word in the speech to be recognized are extracted by the endpoint detection algorithm, and the characteristic parameters of each isolated word are obtained by calculation. The feature parameters of different isolated words in the template speech are stored to form an isolated word speech feature parameter library. The feature parameter vector corresponding to each template speech is stored, and then a speech template library is formed. The feature parameter vector corresponding to the speech to be recognized is obtained, and it is judged whether the feature parameter vector corresponding to the speech to be recognized exists in the speech template library, and if so, the recognition of the speech to be recognized is realized. The isolated word-based speech recognition method can greatly reduce the amount of data processing. The range hood using the isolated word speech recognition method has low cost and high command speech recognition rate.

Description

technical field [0001] The invention relates to the technical field of speech recognition, in particular to a speech recognition method based on isolated words, and to a range hood applied with the speech recognition method. Background technique [0002] With the vigorous development of voice recognition technology, more and more home appliances have voice control functions. In addition, due to the different areas of use, there are many dialects in various places, and the Mandarin of the local people is not standard. Existing speech chips often generate a fixed template library to recognize speech, which leads to the unsatisfactory effect of common speech recognition modules in recognizing dialects. Usually, this kind of semantic recognition template library requires an external storage module due to the large amount of data, which increases additional costs. [0003] Application publication number is CN106997762A (application number is 201710134617.6) Chinese invention pa...

AI Technical Summary

Problems solved by technology

However, the scheme only discloses the implementation principle of the method, and does not propose a specific implementation scheme.

In the specific operation, if the existing training, feature extraction and feature matching methods are used, there is still a large amount of data processing, and the cost is high, so it is not suitable for use in a large number of ordinary household appliances.

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