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Voice Activity Detection

Authors: Ent, Petr;

Voice Activity Detection

Abstract

Práce pojednává o využití support vector machines v detekci řečové aktivity. V první části jsou zkoumány různé druhy příznaků, jejich extrakce a zpracování a je nalezena jejich optimální kombinace, která podává nejlepší výsledky. Druhá část představuje samotný systém pro detekci řečové aktivity a ladění jeho parametrů. Nakonec jsou výsledky porovnány s dvěma dalšími systémy, založenými na odlišných principech. Pro testování a ladění byla použita ERT broadcast news databáze. Porovnání mezi systémy bylo pak provedeno na databázi z NIST06 Rich Test Evaluations.

This thesis deals with usage Support Vector Machines (SVM) for Speech Activity Detection (SAD). The first part of the thesis deals with comparison of different feature extractions and different methods of construction supervectors for classifying speech using SVM. The second part presents SVM based SAD system. All experiments were performed on ERT broadcast new database. Final comparison with two other approaches (phoneme and GMM based) was done on standard NIST 2006 Rich Test Evaluation database.

A

Country
Czech Republic
Related Organizations
Keywords

Gaussian Mixture Models, porovnání příznaků, feature comparison, voice activity detection, extrakce příznaků, Support Vector Machines, feature extraction, speech activity detection, ERT databáze televizního vysílání, směs gaussových rozloľení, support vector machines, detekce řečové aktivity, ERT broadcast news database

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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