Memory Controlled Sequential Self Attention for Sound Recognition

Arjun Pankajakshan; Helen L. Bear; Vinod Subramanian; Emmanouil Benetos

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arXiv · 2005.06650

Memory Controlled Sequential Self Attention for Sound Recognition

Arjun Pankajakshan·Helen L. Bear·Vinod Subramanian·Emmanouil Benetos

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Abstract

In this paper we investigate the importance of the extent of memory in sequential self attention for sound recognition. We propose to use a memory controlled sequential self attention mechanism on top of a convolutional recurrent neural network (CRNN) model for polyphonic sound event detection (SED). Experiments on the URBAN-SED dataset demonstrate the impact of the extent of memory on sound recognition performance with the self attention induced SED model. We extend the proposed idea with a multi-head self attention mechanism where each attention head processes the audio embedding with explicit attention width values. The proposed use of memory controlled sequential self attention offers a way to induce relations among frames of sound event tokens. We show that our memory controlled self attention model achieves an event based F -score of 33.92% on the URBAN-SED dataset, outperforming the F -score of 20.10% reported by the model without self attention.

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BibTeX RIS

Arjun Pankajakshan, Helen L. Bear, Vinod Subramanian, Emmanouil Benetos. 2020-05-13. Memory Controlled Sequential Self Attention for Sound Recognition. https://arxiv.org/abs/2005.06650

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