A MAP Approach to Noise Compensation of Speech

We show that estimation of parameters for the popular Gaussian model of speech in noise can be regularised in a Bayesian sense by use of simple prior distributions. For two example prior distributions, we show that the marginal distribution of the uncorrupted speech is non-Gaussian, but the parameter estimates themselves have tractable solutions. Speech recognition experiments serve to suggest values for hyper-parameters, and demonstrate that the theory is practically applicable.


Year:
2009
Publisher:
Idiap
Laboratories:




 Record created 2010-02-11, last modified 2018-03-17

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