Research and Practice of Automatic Voiceprint Comparison Threshold Setting Technology in Voiceprint Identification
In the actual use of the voiceprint identification system,the affirmation is concluded with a comparison threshold set based on on the personal experience of the identification personnel.This static threshold setting method not only has subjective factors and poor adaptability,but also cannot adapt to the influence of different audio quality and channel conditions,which reduces the accuracy and reliability of the voiceprint identification system.In this paper,the automatic voiceprint comparison threshold setting technology is studied and practiced,and the performance of different threshold-setting strategies is evaluated by using different evaluation indicators such as accuracy,recall rate and false rejection rate.The results of this study are of great significance for the improvement and optimization of the voiceprint identification system.
voiceprint identificationvoiceprint comparisonthreshold settinglikelihood ratio