ASR systems in Noisy Environment: Analysis and Solutions for Increasing Noise Robustness

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F11%3A00179907" target="_blank" >RIV/68407700:21230/11:00179907 - isvavai.cz</a>

Result on the web

<a href="http://www.radioeng.cz" target="_blank" >http://www.radioeng.cz</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

ASR systems in Noisy Environment: Analysis and Solutions for Increasing Noise Robustness

Original language description

This paper deals with the analysis of Automatic Speech Recognition (ASR) suitable for usage within noisy environment and suggests optimum configuration under various noisy conditions. The behavior of standard parameterization techniques was analyzed fromthe viewpoint of robustness against background noise. It was done for Mel-frequency cepstral coefficients (MFCC), Perceptual linear predictive (PLP) coefficients, and their modified forms combining main blocks of PLP and MFCC. The second part is devotedto the analysis and contribution of modified techniques containing frequency-domain noise suppression and voice activity detection. The above-mentioned techniques were tested with signals in real noisy environment within Czech digit recognition task andAURORA databases. Finally, the contribution of special VAD selective training and MLLR adaptation of acoustic models were studied for various signal features.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

<a href="/en/project/GA102%2F08%2F0707" target="_blank" >GA102/08/0707: Speech Recognition under Real-World Conditions</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Radioengineering

ISSN

1210-2512

e-ISSN

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Volume of the periodical

20

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

11

Pages from-to

74-84

UT code for WoS article

000289657300012

EID of the result in the Scopus database

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