Speaker Recognition with Random Digit Strings Using Uncertainty Normalized HMM-based i-vectors
TABLE V: Comparison between different number of HMM states.
['Number of HMM states', '[BOLD] Male EER [%]', '[BOLD] Male NDCFminold', '[BOLD] Male NDCFminnew', '[BOLD] Female EER [%]', '[BOLD] Female NDCFminold', '[BOLD] Female NDCFminnew']
As we observe, the performance is rather insensitive to Sd, being slightly higher for Sd=16. However, we choose to use Sd=8 for the rest of the experiments, since their differences are minor and the algorithm becomes less computationally and memory demanding.