The influence of noise on the speaker recognition performance using the higher frequency band

In our previous studies, we have shown the effectiveness of using the information in the higher frequency band for speaker recognition. However, the energy spectrum of speech in the higher frequency band is weak, except for some fricative sounds. Therefore, it is important to investigate the speaker individual information in that region under noisy conditions. In this study, we examine the influence of additive noises on the performance of speaker recognition using the higher frequency band. Experimental results show that high performance is obtained in the wideband case under many typical noisy conditions. It is also shown that the higher frequency band is more stable against noises than the lower one. For that reason, the higher frequency band gives good performance even if the SNR of the higher frequency region is worse than the lower one.