Feature recovery for noise‐robust speaker verification
Houjun Huang, Yunfei Xu, Ruohua Zhou, Yonghong Yan · Electronics Letters · 2015
Noisy condition is an important extrinsic degradation affecting speaker verification system performance. A feature‐recovery approach is proposed to eliminate noise‐dependent variability in feature space. A frame of the noisy feature vector is recovered using the information of itself and the neighbour feature vectors. Experiments are conducted on noisy test sets for text‐dependent speaker verification tasks and the results indicate that the system can achieve significant performance improvement by using recovered feature vectors.