International Conference on Computer and Knowledge Engineering

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DPRNN-FORMER: AN EFFICIENT WAY TO DEAL WITH BLIND SOURCE SEPARATION

Authors :

Ramin Ghorbani¹ Sajad Haghzad Klidbary²

1- University of Zanjan 2- University of Zanjan

Keywords :

Blind Source Separation (BSS)،Deep Neural Network (DNN)،Long short term memory(LSTM)،Speech Source Separation،Transformer

Abstract :

Recent advancements in DL have indicated that time-domain methods are more successful than traditional time-frequency-based methods regarding speech separation. However, modeling very long sequences in time-domain separation systems presents some challenges. Recurrent neural networks and 1-D convolutional neural networks are not sufficient for modeling lengthy sequences by themselves. In this paper, a hybrid RNN is proposed, combining a pre-trained DPRNN and transformer. This strategy uses the transformer's ability to perceive context, allowing it to gain insight into the time-evolving data connected to audio signals. To handle extended input sequences, the network partitions them into more manageable sections, performing intra-section and inter-section operations iteratively. The proposed network surpasses current state-of-the-art algorithms, achieving SI-SNR of 11.129 and SDR of 11.285 dB on the public WSj0-3mix dataset.

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