Voice conversion method of united frequency-spectrum modeling based on restricted boltzman machine
A technology of Boltzmann machine and joint spectrum, which is applied in speech synthesis, speech analysis, speech recognition, etc., and can solve problems such as over-smoothing
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[0112] In the present invention, according to the proposed idea of joint spectrum modeling based on restricted Boltzmann machine, the specific process of realizing sound conversion is obtained as follows: figure 1 shown. Different from describing each acoustic subspace with a single Gaussian in the transformation method based on the GMM model, a restricted Boltzmann machine (RBM) model is used for description in the present invention. In the RBM training module, RBMs of different structures can be adopted according to the specific form of the RBM model, such as Gaussian-Bernoulli RBM, Gaussian-Gaussian RBM, etc.
[0113] Restricted Boltzmann Machines (see R.Salakhutdinov, "Learning deep generative models," Ph.D. dissertation, University of Toronto, 2009.) is a method for describing interdependencies between a set of random variables with An undirected graph model of a two-layer structure, which consists of a set of visible random variables v=[v 1 , v 2 ,...,v V ] T A no...
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