English speech recognition based on deep learning with multiple features

English is one of the widely used languages, with the shrinking of the global village, the smart home, the in-vehicle voice system and voice recognition software with English as the recognition language have gradually entered people’s field of vision, and have obtained the majority of users’ love by the practical accuracy. And deep learning technology in many tasks with its hierarchical feature learning ability and data modeling capabilities has achieved more than the performance of shallow learning technology. Therefore, this paper takes English speech as the research object, and proposes a deep learning speech recognition algorithm that combines speech features and speech attributes. Firstly, the deep neural network supervised learning method is used to extract the high-level features of the speech, select the output of the fixed hidden layer as the new speech feature for the newly generated network, and train the GMM–HMM acoustic model with the new speech features; secondly, the speech attribute extractor based on deep neural network is trained for multiple speech attributes, and the extracted speech attributes are classified into phoneme by deep neural network; finally, speech features and speech attribute features are merged into the same CNN framework by the neural network based on the linear feature fusion algorithm. The experimental results show that the proposed English speech recognition algorithm based on deep neural network with multiple features can directly and effectively combine the two methods by combining the speech features and the speech attributes of the speaker in the input layer of the deep neural network, and it can improve the performance of the English speech recognition system significantly.