Speaker Verification using Convolutional Neural Networks
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In this paper, a novel Convolutional Neural Network architecture has been developed for speaker verification in order to simultaneously capture and discard speaker and non-speaker information, respectively. In training phase, the network is trained to distinguish between different speaker identities for creating the background model. One of the crucial parts is to create the speaker models. Most of the previous approaches create speaker models based on averaging the speaker representations provided by the background model. We overturn this problem by further fine-tuning the trained model using the Siamese framework for generating a discriminative feature space to distinguish between same and different speakers regardless of their identity. This provides a mechanism which simultaneously captures the speaker-related information and create robustness to within-speaker variations. It is demonstrated that the proposed method outperforms the traditional verification methods which create speaker models directly from the background model.
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