ERANNs: Efficient Residual Audio Neural Networks for Audio Pattern Recognition
This work addresses the need for efficient and accurate audio recognition systems, which is incremental as it builds on existing CNN methods with speed and size improvements.
The paper tackles audio pattern recognition by proposing a new CNN architecture and method to improve inference speed, achieving state-of-the-art accuracies on three datasets (e.g., 0.961 on ESC-50) and a 7.1x faster, 9.7x smaller system on AudioSet with a mAP of 0.450.
Audio pattern recognition (APR) is an important research topic and can be applied to several fields related to our lives. Therefore, accurate and efficient APR systems need to be developed as they are useful in real applications. In this paper, we propose a new convolutional neural network (CNN) architecture and a method for improving the inference speed of CNN-based systems for APR tasks. Moreover, using the proposed method, we can improve the performance of our systems, as confirmed in experiments conducted on four audio datasets. In addition, we investigate the impact of data augmentation techniques and transfer learning on the performance of our systems. Our best system achieves a mean average precision (mAP) of 0.450 on the AudioSet dataset. Although this value is less than that of the state-of-the-art system, the proposed system is 7.1x faster and 9.7x smaller. On the ESC-50, UrbanSound8K, and RAVDESS datasets, we obtain state-of-the-art results with accuracies of 0.961, 0.908, and 0.748, respectively. Our system for the ESC-50 dataset is 1.7x faster and 2.3x smaller than the previous best system. For the RAVDESS dataset, our system is 3.3x smaller than the previous best system. We name our systems "Efficient Residual Audio Neural Networks".