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arXiv · 2505.10885

BanglaFake: Constructing and Evaluating a Specialized Bengali Deepfake Audio Dataset

Istiaq Ahmed Fahad·Kamruzzaman Asif·Sifat Sikder
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Abstract

Deepfake audio detection is challenging for low-resource languages like Bengali due to limited datasets and subtle acoustic features. To address this, we introduce BangalFake, a Bengali Deepfake Audio Dataset with 12,260 real and 13,260 deepfake utterances. Synthetic speech is generated using SOTA Text-to-Speech (TTS) models, ensuring high naturalness and quality. We evaluate the dataset through both qualitative and quantitative analyses. Mean Opinion Score (MOS) from 30 native speakers shows Robust-MOS of 3.40 (naturalness) and 4.01 (intelligibility). t-SNE visualization of MFCCs highlights real vs. fake differentiation challenges. This dataset serves as a crucial resource for advancing deepfake detection in Bengali, addressing the limitations of low-resource language research.

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Istiaq Ahmed Fahad, Kamruzzaman Asif, Sifat Sikder. 2025-05-16. BanglaFake: Constructing and Evaluating a Specialized Bengali Deepfake Audio Dataset. https://arxiv.org/abs/2505.10885

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