A vector quantized masked autoencoder for audiovisual speech emotion recognition

• URL: http://arxiv.org/abs/2305.03568v2
• Date: Wed, 15 May 2024 13:54:49 GMT
• Title: A vector quantized masked autoencoder for audiovisual speech emotion recognition
• Authors: Samir Sadok, Simon Leglaive, Renaud Séguier,
• Abstract summary: The paper proposes the VQ-MAE-AV model, a vector quantized masked autoencoder (MAE) designed for audiovisual speech self-supervised representation learning. A multimodal MAE with self- or cross-attention mechanisms is proposed to fuse the audio and visual speech modalities and to learn local and global representations of the audiovisual speech sequence. Experimental results show that the proposed approach, which is pre-trained on the VoxCeleb2 database and fine-tuned on standard emotional audiovisual speech datasets, outperforms the state-of-the-art audiovisual SER methods.
• Score: 5.8641712963450825
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The limited availability of labeled data is a major challenge in audiovisual speech emotion recognition (SER). Self-supervised learning approaches have recently been proposed to mitigate the need for labeled data in various applications. This paper proposes the VQ-MAE-AV model, a vector quantized masked autoencoder (MAE) designed for audiovisual speech self-supervised representation learning and applied to SER. Unlike previous approaches, the proposed method employs a self-supervised paradigm based on discrete audio and visual speech representations learned by vector quantized variational autoencoders. A multimodal MAE with self- or cross-attention mechanisms is proposed to fuse the audio and visual speech modalities and to learn local and global representations of the audiovisual speech sequence, which are then used for an SER downstream task. Experimental results show that the proposed approach, which is pre-trained on the VoxCeleb2 database and fine-tuned on standard emotional audiovisual speech datasets, outperforms the state-of-the-art audiovisual SER methods. Extensive ablation experiments are also provided to assess the contribution of the different model components.

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