# Two-step Authentication: Multi-biometric System Using Voice and Facial Recognition

arXiv: https://arxiv.org/abs/2601.06218 · HTML: https://mlsanity.com/paper/2601.06218/

## Key facts

- No citing papers in the map yet (data through 14 Oct 2026).
- First posted on arXiv 9 Jan 2026.

## Abstract (arXiv)

We present a cost-effective two-step authentication system that integrates face identification and speaker verification using only a camera and microphone available on common devices. The pipeline first performs face recognition to identify a candidate user from a small enrolled group, then performs voice recognition only against the matched identity to reduce computation and improve robustness. For face recognition, a pruned VGG-16 based classifier is trained on an augmented dataset of 924 images from five subjects, with faces localized by MTCNN; it achieves 95.1% accuracy. For voice recognition, a CNN speaker-verification model trained on LibriSpeech (train-other-360) attains 98.9% accuracy and 3.456% EER on test-clean. Source code and trained models are available at https://github.com/NCUE-EE-AIAL/Two-step-Authentication-Multi-biometric-System.