SpecAugment Impact on Automatic Speaker Verification System

An automatic speaker verification (ASV) is one of the challenging problem in speech processing since there are so many models of machine learnings those capable of synthesizing a fake speech from a given text. This paper discusses the impact of SpecAugment to methods such as Gaussian Mixture Models (GMM) and Deep Neural Networks (DNNs). Some experiments on a speech dataset sampled from the ASVSpoof2019, which is specially made to tackle the threat of spoofing, show that DNNs produces an Equal Error Rate (EER) of 18.1% that is better than the GMM system with EER of 19.0%. And after combining with a traditional augmentation technique, the DNNs also gives a better EER of 15.3% than GMM with EER of 15.7%.