402 citations · 435 across the 3 of their papers we have counts for
5 papers
Statistical Speech Model Description with VMF Mixture Model
Zhanyu Ma, Arne Leijon
In this paper, we present the LSF parameters by a unit vector form, which has directional characteristics. The underlying distribution of this unit vector variable is modeled by a…
Kernel Density Estimation-Based Markov Models with Hidden State
Gustav Eje Henter, Arne Leijon, W. Bastiaan Kleijn
We consider Markov models of stochastic processes where the next-step conditional distribution is defined by a kernel density estimator (KDE), similar to Markov forecast densities…
Nonnegative HMM for Babble Noise Derived from Speech HMM: Application to Speech Enhancement
Nasser Mohammadiha, Arne Leijon
Deriving a good model for multitalker babble noise can facilitate different speech processing algorithms, e.g. noise reduction, to reduce the so-called cocktail party difficulty. I…
Supervised and Unsupervised Speech Enhancement Using Nonnegative Matrix Factorization
Nasser Mohammadiha, Paris Smaragdis, Arne Leijon
Reducing the interference noise in a monaural noisy speech signal has been a challenging task for many years. Compared to traditional unsupervised speech enhancement methods, e.g.,…
Decorrelation of Neutral Vector Variables: Theory and Applications
Zhanyu Ma, Jing-Hao Xue, Arne Leijon +3
In this paper, we propose novel strategies for neutral vector variable decorrelation. Two fundamental invertible transformations, namely serial nonlinear transformation and paralle…