Dense Coordinate Channel Attention Network for Depression Level Estimation from Speech
摘要
Automatic depression level estimation from speech is currently an active research topic in the field of computational emotion recognition. One symptom commonly exhibited by patients with depression is erratic speech volume; thus, patients’ voices can be used as a bio-signature to identify their level of depression. However, speech signals have time-frequency properties; different frequencies and different timestamps contribute to depression detection in different ways. Accordingly, we design a Coordinate Channel Attention (CCA) block for differentiating tensor information with different contributions. We use a dense block to extract profound speech features with the above-mentioned blocks to form our proposed Dense Coordinate Channel Attention Network (DCCANet). Subsequently, a vectorization block is utilized to fuse the high-dimensional information. We split the original long speech into short audio segments of equal length, then feed these short segments into the network after feature extraction to determine BDI-II scores. Ultimately, the mean of the scores is used as the individual’s depression level. Experiments on both the AVEC2013 and AVEC2014 datasets prove the effectiveness of DCCANet, which outperforms several existing methods.