Sound event detection method based on convolutional neural network
A technology of event detection and sound, which is applied in the field of sound event detection based on convolutional neural network, can solve the problems of limited detection accuracy, large number of deep neural network parameters, and high computational complexity, so as to reduce the number of parameters and computational complexity, The effect of reducing power consumption and computational complexity and reducing detection accuracy
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[0055] Build the neural network model in the LCSED model of this embodiment, that is, set the network structure of the mixed convolution module, the lightweight double attention mechanism module, the time series fully connected layer and the aggregation layer:
[0056] Among them, the convolution kernel of the convolution layer B_Conv of the hybrid convolution module is set to 3×3×64, where 3×3 represents the convolution kernel band, and 64 represents the number of channels; the input dimension of the convolution layer B_Conv is (240, 64,1), the output dimension is (240,64,64); in the input and output dimensions of each network layer, if it is in the form of (A,B,C), then (A,B) represents the input / output characteristics The size of the graph, where A represents the number of audio frames, B represents the feature dimension; C represents the number of channels of the feature map;
[0057] The 4 densely connected convolutional blocks of the hybrid convolution module all include...
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