Publication result detail

Region Dependent Linear Transforms in Multilingual Speech Recognition

KARAFIÁT, M.; JANDA, M.; ČERNOCKÝ, J.; BURGET, L.

Original Title

Region Dependent Linear Transforms in Multilingual Speech Recognition

English Title

Region Dependent Linear Transforms in Multilingual Speech Recognition

Type

Paper in proceedings (conference paper)

Original Abstract

In today's speech recognition systems, linear or nonlinear transformationsare usually applied to post-process speech features forminginput to HMM based acoustic models. In this work, we experimentwith three popular transforms: HLDA,MPE-HLDA and Region DependentLinear Transforms (RDLT), which are trained jointly withthe acoustic model to extract maximum of the discriminative informationfrom the raw features and to represent it in a form suitablefor the following GMM-HMM based acoustic model. We focus onmulti-lingual environments, where limited resources are availablefor training recognizers of many languages. Using data from GlobalPhonedatabase, we show that, under such restrictive conditions,the feature transformations can be advantageously shared across languagesand robustly trained using data from several languages.

English abstract

In today's speech recognition systems, linear or nonlinear transformationsare usually applied to post-process speech features forminginput to HMM based acoustic models. In this work, we experimentwith three popular transforms: HLDA,MPE-HLDA and Region DependentLinear Transforms (RDLT), which are trained jointly withthe acoustic model to extract maximum of the discriminative informationfrom the raw features and to represent it in a form suitablefor the following GMM-HMM based acoustic model. We focus onmulti-lingual environments, where limited resources are availablefor training recognizers of many languages. Using data from GlobalPhonedatabase, we show that, under such restrictive conditions,the feature transformations can be advantageously shared across languagesand robustly trained using data from several languages.

Keywords

HLDA, Region Dependent Transforms, MinimumPhone Error, fMPE, multilingual speech recognition

Key words in English

HLDA, Region Dependent Transforms, MinimumPhone Error, fMPE, multilingual speech recognition

Authors

KARAFIÁT, M.; JANDA, M.; ČERNOCKÝ, J.; BURGET, L.

RIV year

2013

Released

25.03.2012

Publisher

IEEE Signal Processing Society

Location

Kyoto

ISBN

978-1-4673-0044-5

Book

Proc. International Conference on Acoustics, Speech, and Signal Processing 2012

Pages from

4885

Pages to

4888

Pages count

4

URL

http://www.fit.vutbr.cz/research/groups/speech/publi/2012/karafiat_icassp2012_0004885.pdf

BibTex

@inproceedings{BUT91480,
  author="Martin {Karafiát} and Miloš {Janda} and Jan {Černocký} and Lukáš {Burget}",
  title="Region Dependent Linear Transforms in Multilingual Speech Recognition",
  booktitle="Proc. International Conference on Acoustics, Speech, and Signal Processing 2012",
  year="2012",
  pages="4885--4888",
  publisher="IEEE Signal Processing Society",
  address="Kyoto",
  doi="10.1109/ICASSP.2012.6289014",
  isbn="978-1-4673-0044-5",
  url="http://www.fit.vutbr.cz/research/groups/speech/publi/2012/karafiat_icassp2012_0004885.pdf"
}