how to match a variable value with pre-stored value in the database?

hi all.i am doing a project on voice recognition.i am stuck in the verification part. what i really want is to match the loglikelihood value with the pre stored value in the database. e.g if i have stored the model parameters in .mat file and now i want to verify the person what should i do? any help will be grateful thnx

[Miro]

since a voice signal is not a simple "value" this is not that easy. You have to make a Fourier transformation of the signal and make a correlation analysis. F.e. with the function xcorr.