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arXiv · 2312.15593

DSNet: Disentangled Siamese Network with Neutral Calibration for Speech Emotion Recognition

Chengxin Chen·Pengyuan Zhang
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Abstract

One persistent challenge in deep learning based speech emotion recognition (SER) is the unconscious encoding of emotion-irrelevant factors (e.g., speaker or phonetic variability), which limits the generalization of SER in practical use. In this paper, we propose DSNet, a Disentangled Siamese Network with neutral calibration, to meet the demand for a more robust and explainable SER model. Specifically, we introduce an orthogonal feature disentanglement module to explicitly project the high-level representation into two distinct subspaces. Later, we propose a novel neutral calibration mechanism to encourage one subspace to capture sufficient emotion-irrelevant information. In this way, the other one can better isolate and emphasize the emotion-relevant information within speech signals. Experimental results on two popular benchmark datasets demonstrate the superiority of DSNet over various state-of-the-art methods for speaker-independent SER.

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BibTeXRIS

Chengxin Chen, Pengyuan Zhang. 2023-12-25. DSNet: Disentangled Siamese Network with Neutral Calibration for Speech Emotion Recognition. https://arxiv.org/abs/2312.15593

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