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شانزدهمین کنفرانس بین المللی فناوری اطلاعات و دانش
Listening with Precision: ASR-Guided Method and Fusion Strategy for Text-Dependent Speaker Verification
Authors :
Mohammad Reza Molavi
1
Reza Khodadadi
2
Hossein Zeinali
3
1- دانشگاه صنعتی امیرکبیر (پلیتکنیک تهران)
2- دانشگاه صنعتی شریف
3- دانشگاه صنعتی امیرکبیر (پلیتکنیک تهران)
Keywords :
speaker verification،text-dependent, ASR،speaker embedding fusion
Abstract :
This paper proposes a text-dependent speaker verification approach (TD-SV) that improves accuracy and robustness by leveraging automatic speech recognition (ASR) to guide the verification process and final fusion score. Our system inte- grates a Fast-Conformer-based ASR module to validate speech content, effectively filtering out target-wrong and impostor- wrong trials. We propose a feature fusion method for speaker verification that combines speaker embeddings from Wav2Vec- BERT and ReDimNet, leveraging self-supervised and task- specific representations for superior performance. This fusion significantly improves verification accuracy compared to indi- vidual embeddings. Our approach achieves a competitive nor- malized minDCF of 0.045 on the Iranian division of the TD- SV 2024 Challenge test set, demonstrating an optimal balance between performance and computational efficiency. Our best submission secured the second rank in the challenge.
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