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ASR Lecture 13

ASR Lecture 13: Speaker adaptation

From  Peter Bell on March 25th, 2021 0 likes 4 plays 0  

Topic 39: Multivariate Characteristic Functions (PETARS, Chapter 5)

The concept of the characteristic function for scalar random variables is extended to multivariate densities of random vectors. This is defined as the multi-dimensional Fourier transform, or the…

From  James Hopgood on October 18th, 2020 0 likes 78 plays 0  

Topic 38: The Multivariate Guassian Distribution (PETARS, Chapter 5)

This video reviews the probability density function (pdf) for the multivariate Gaussian random variable. This pdf is then derived by developing the isotropic multivariate Gaussian, and then…

From  James Hopgood on October 15th, 2020 0 likes 101 plays 0  

Topic 24: Higher-Order Statistics (PETARS, Chapter 4)

This video looks at two important and commonly used higher-order statistics that are useful for characterising a random variable, namely skewness and kurtosis. The video gives a physical meaning to…

From  James Hopgood on September 29th, 2020 0 likes 85 plays 0  

Topic 20: Common density functions and their properties (PETARS, Chapter 4)

This video introduces a number of common probability density functions that are used in signal processing algorithms. Examples are given over finite-intervals, the entire real axis, and…

From  James Hopgood on September 23rd, 2020 0 likes 97 plays 0  

Summary

Summary

From  Nigel Goddard on September 25th, 2016 0 likes 1,626 plays 0  

Introduction to mixture models

Introduction to mixture models

From  Nigel Goddard on September 25th, 2016 0 likes 2,434 plays 0  

How many Gaussians in the GMM

How many Gaussians in the GMM

From  Nigel Goddard on September 25th, 2016 0 likes 1,993 plays 0  

Gaussian mixture model (GMM)

Gaussian mixture model (GMM)

From  Nigel Goddard on September 25th, 2016 0 likes 2,406 plays 0  

Visualizing the EM algorithm

Visualizing the EM algorithm

From  Nigel Goddard on September 25th, 2016 0 likes 2,601 plays 0  

Expectation-maximization algorithm

Expectation-maximization algorithm

From  Nigel Goddard on September 25th, 2016 0 likes 2,539 plays 0  

Estimating Gaussians

Estimating Gaussians

From  Nigel Goddard on September 8th, 2016 1 likes 1,309 plays 0