Statistical Speech Model Description with VMF Mixture Model
Sound
2020-02-04 v2 Audio and Speech Processing
Abstract
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 von Mises-Fisher mixture model (VMM). With the high rate theory, the optimal inter-component bit allocation strategy is proposed and the distortion-rate (D-R) relation is derived for the VMM based-VQ (VVQ). Experimental results show that the VVQ outperforms our recently introduced DVQ and the conventional GVQ.
Cite
@article{arxiv.1808.00960,
title = {Statistical Speech Model Description with VMF Mixture Model},
author = {Zhanyu Ma and Arne Leijon},
journal= {arXiv preprint arXiv:1808.00960},
year = {2020}
}
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