Optimal Scalogram for Computational Complexity Reduction in Acoustic Recognition Using Deep Learning
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909929695084544 |
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| author | Phan, Dang Thoai Huynh, Tuan Anh Pham, Van Tuan Tran, Cao Minh Mai, Van Thuan Tran, Ngoc Quy |
| author_facet | Phan, Dang Thoai Huynh, Tuan Anh Pham, Van Tuan Tran, Cao Minh Mai, Van Thuan Tran, Ngoc Quy |
| contents | The Continuous Wavelet Transform (CWT) is an effective tool for feature extraction in acoustic recognition using Convolutional Neural Networks (CNNs), particularly when applied to non-stationary audio. However, its high computational cost poses a significant challenge, often leading researchers to prefer alternative methods such as the Short-Time Fourier Transform (STFT). To address this issue, this paper proposes a method to reduce the computational complexity of CWT by optimizing the length of the wavelet kernel and the hop size of the output scalogram. Experimental results demonstrate that the proposed approach significantly reduces computational cost while maintaining the robust performance of the trained model in acoustic recognition tasks. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2505_13017 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Optimal Scalogram for Computational Complexity Reduction in Acoustic Recognition Using Deep Learning Phan, Dang Thoai Huynh, Tuan Anh Pham, Van Tuan Tran, Cao Minh Mai, Van Thuan Tran, Ngoc Quy Audio and Speech Processing Sound Signal Processing The Continuous Wavelet Transform (CWT) is an effective tool for feature extraction in acoustic recognition using Convolutional Neural Networks (CNNs), particularly when applied to non-stationary audio. However, its high computational cost poses a significant challenge, often leading researchers to prefer alternative methods such as the Short-Time Fourier Transform (STFT). To address this issue, this paper proposes a method to reduce the computational complexity of CWT by optimizing the length of the wavelet kernel and the hop size of the output scalogram. Experimental results demonstrate that the proposed approach significantly reduces computational cost while maintaining the robust performance of the trained model in acoustic recognition tasks. |
| title | Optimal Scalogram for Computational Complexity Reduction in Acoustic Recognition Using Deep Learning |
| topic | Audio and Speech Processing Sound Signal Processing |
| url | https://arxiv.org/abs/2505.13017 |