High-Level Music Descriptor Extraction Algorithm Based on Combination of Multi-Channel CNNs and LSTM

نویسندگان

  • Ning Chen
  • Shijun Wang
چکیده

Although Convolutional Neural Networks (CNNs) and Long Short Term Memory (LSTM) have yielded impressive performances in a variety of Music Information Retrieval (MIR) tasks, the complementarity among the CNNs of different architectures and that between CNNs and LSTM are seldom considered. In this paper, multichannel CNNs with different architectures and LSTM are combined into one unified architecture (Multi-Channel Convolutional LSTM, MCCLSTM) to extract high-level music descriptors. First, three channels of CNNs with different shapes of filter are applied on each spectrogram image chunk to extract the pitch-, tempo-, and bassrelevant descriptors, respectively. Then, the outputs of each CNNs channel are concatenated and then passed through a fully connected layer to obtain the fused descriptor. Finally, LSTM is applied on the fused descriptor sequence of the whole track to extract its long-term structure property to obtain the high-level descriptor. To prove the efficiency of the MCCLSTM model, the obtained high-level music descriptor is applied to the music genre classification and emotion prediction task. Experimental results demonstrate that, when compared with the hand-crafted schemes or conventional deep learning (Multi Layer Perceptrons (MLP), CNNs, and LSTM) based ones, MCCLSTM achieves higher prediction accuracy on three music collections with different kinds of semantic tags.

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تاریخ انتشار 2017