Open AccessSpeech Separation Using Convolutional Neural Network and Attention Mechanism
Author(s) -
Chunmiao Yuan,
Xuemei Sun,
Hu Zhao
Publication year - 2020
Publication title -
discrete dynamics in nature and society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.264
H-Index - 39
eISSN - 1607-887X
pISSN - 1026-0226
DOI - 10.1155/2020/2196893
Subject(s) - computer science , separation (statistics) , speech recognition , convolutional neural network , mechanism (biology) , artificial neural network , curse of dimensionality , artificial intelligence , sequence (biology) , pattern recognition (psychology) , machine learning , philosophy , epistemology , biology , genetics
Speech information is the most important means of human communication, and it is crucial to separate the target voice from the mixed sound signals. This paper proposes a speech separation model based on convolutional neural networks and attention mechanism. The magnitude spectrum of the mixed speech signals, as the input, has its high dimensionality. By analyzing the characteristics of the convolutional neural network and attention mechanism, it can be found that the convolutional neural network can effectively extract low-dimensional features and mine the spatiotemporal structure information in the speech signals, and the attention mechanism can reduce the loss of sequence information. The accuracy of speech separation can be improved effectively by combining two mechanisms. Compared to the typical speech separation model DRNN-2 + discrim, this method achieves 0.27 dB GNSDR gain and 0.51 dB GSIR gain, which illustrates that the speech separation model proposed in this paper has achieved an ideal separation effect.