Weicheng Cai

The SYSU System for the Interspeech 2015 Automatic Speaker Verification Spoofing and Countermeasures Challenge

2015 · arXiv (Cornell University)

Many existing speaker verification systems are reported to be vulnerable against different spoofing attacks, for example speaker-adapted speech synthesis, voice conversion, play back, etc. In order to detect these spoofed speech signals as a countermeasure, …

Analysis of Length Normalization in End-to-End Speaker Verification System

2018

The classical i-vectors and the latest end-to-end deep speaker embeddings are the two representative categories of utterancelevel representations in automatic speaker verification systems.Traditionally, once i-vectors or deep speaker embeddings are extracted, we rely on an …

Within-sample variability-invariant loss for robust speaker recognition under noisy environments

2020 · arXiv (Cornell University)

Despite the significant improvements in speaker recognition enabled by deep neural networks, unsatisfactory performance persists under noisy environments. In this paper, we train the speaker embedding network to learn the "clean" embedding of the noisy …

A Novel Learnable Dictionary Encoding Layer for End-to-End Language Identification

2018

A novel learnable dictionary encoding layer is proposed in this paper for end-to-end language identification. It is inline with the conventional GMM i-vector approach both theoretically and practically. We imitate the mechanism of traditional GMM …