arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2403.04743eess.AS
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基于CNN-Transformer和多维注意力机制的语音情感识别

Speech Emotion Recognition Via CNN-Transformer and Multidimensional Attention Mechanism

Xiaoyu Tang, Yixin Lin, Ting Dang, Yuanfang Zhang, Jintao Cheng

AI总结:

提出基于CNN-Transformer与多维注意力机制的语音情感识别网络,通过CNN块、时间-通道-空间注意力及轻量级Transformer模块分别建模局部与全局信息,在IEMOCAP和Emo-DB数据集上显著优于现有方法。

摘要:

语音情感识别(SER)在人机交互中至关重要。主流方法利用卷积神经网络或循环神经网络从语音信息中学习语音片段的局部能量特征表示,但在捕捉语音中能量持续时间等全局信息方面存在困难。一些方法使用Transformers来捕捉全局信息,但在参数量和性能方面仍有改进空间。此外,现有的注意力机制集中于空间或通道维度,阻碍了对语音中重要时间信息的学习。在本文中,为了在不同粒度级别上对语音中的局部和全局信息进行建模,并捕捉语音信号中的时间、空间和通道依赖关系,我们提出了一种基于CNN-Transformer和多维注意力机制的语音情感识别网络。具体而言,一叠CNN块专门用于从时频角度捕捉语音中的局部信息。此外,使用时间-通道-空间注意力机制在三个维度上增强特征。此外,我们使用具有深度可分离卷积的大卷积核和轻量级Transformer模块对特征序列的局部和全局依赖关系进行建模。我们在IEMOCAP和Emo-DB数据集上评估了所提出的方法,并表明我们的方法显著优于最先进的方法。

英文摘要:

Speech Emotion Recognition (SER) is crucial in human-machine interactions. Mainstream approaches utilize Convolutional Neural Networks or Recurrent Neural Networks to learn local energy feature representations of speech segments from speech information, but struggle with capturing global information such as the duration of energy in speech. Some use Transformers to capture global information, but there is room for improvement in terms of parameter count and performance. Furthermore, existing attention mechanisms focus on spatial or channel dimensions, hindering learning of important temporal information in speech. In this paper, to model local and global information at different levels of granularity in speech and capture temporal, spatial and channel dependencies in speech signals, we propose a Speech Emotion Recognition network based on CNN-Transformer and multi-dimensional attention mechanisms. Specifically, a stack of CNN blocks is dedicated to capturing local information in speech from a time-frequency perspective. In addition, a time-channel-space attention mechanism is used to enhance features across three dimensions. Moreover, we model local and global dependencies of feature sequences using large convolutional kernels with depthwise separable convolutions and lightweight Transformer modules. We evaluate the proposed method on IEMOCAP and Emo-DB datasets and show our approach significantly improves the performance over the state-of-the-art methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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