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arXiv · 1910.10106

Cross-Representation Transferability of Adversarial Attacks: From Spectrograms to Audio Waveforms

Karl Michel Koerich·Mohammad Esmaeilpour·Sajjad Abdoli·Alceu de Souza Britto Jr.·Alessandro Lameiras Koerich
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Abstract

This paper shows the susceptibility of spectrogram-based audio classifiers to adversarial attacks and the transferability of such attacks to audio waveforms. Some commonly used adversarial attacks to images have been applied to Mel-frequency and short-time Fourier transform spectrograms, and such perturbed spectrograms are able to fool a 2D convolutional neural network (CNN). Such attacks produce perturbed spectrograms that are visually imperceptible by humans. Furthermore, the audio waveforms reconstructed from the perturbed spectrograms are also able to fool a 1D CNN trained on the original audio. Experimental results on a dataset of western music have shown that the 2D CNN achieves up to 81.87% of mean accuracy on legitimate examples and such performance drops to 12.09% on adversarial examples. Likewise, the 1D CNN achieves up to 78.29% of mean accuracy on original audio samples and such performance drops to 27.91% on adversarial audio waveforms reconstructed from the perturbed spectrograms.

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BibTeXRIS

Karl Michel Koerich, Mohammad Esmaeilpour, Sajjad Abdoli, Alceu de Souza Britto Jr., Alessandro Lameiras Koerich. 2019-10-22. Cross-Representation Transferability of Adversarial Attacks: From Spectrograms to Audio Waveforms. https://arxiv.org/abs/1910.10106

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