Gaussian Mixture Model

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i Venky
i Venky 2011-10-15
I am doing voice recognition using MFCC and GMM.
First I found out the melcepst coefficients. There were about 12 mel cespstrum coefficients.
But now I want to construct the gaussian mixture model for this data. To find the data of a gaussian model whose means,covariance are known, we use the function gmdistribution. But I want to find out the mean and other parameters from the data. What is the function used for this?
After finding that out I want to find out the log likelihood for the given input data. What should I do for that?

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