Baza Publikacji Pracowników Politechniki Lubelskiej

Status:
Autorzy:	Mika Dariusz, Józwik Jerzy
Dyscypliny:
	Aby zobaczyć szczegóły należy się zalogować.
Rok wydania:	2018
Wersja dokumentu:	Drukowana \| Elektroniczna
Język:	angielski
Numer czasopisma:	1
Wolumen/Tom:	12
Strony:	251 - 259
Web of Science® Times Cited:	11
Bazy:	Web of Science \| BazTech \| Index Copernicus \| Google Scholar
Efekt badań statutowych	NIE
Materiał konferencyjny:	NIE
Publikacja OA:	TAK
Licencja:
Sposób udostępnienia:	Otwarte czasopismo
Wersja tekstu:	Ostateczna wersja opublikowana
Czas opublikowania:	W momencie opublikowania
Data opublikowania w OA:	1 marca 2018
Abstrakty:	angielski
	The most commonly used time-frequency representation of the analysis in voice signal is spectrogram. This representation belongs in general to Cohen's class, the class of time-frequency energy distributions. From the standpoint of properties of the resolution spectrogram representation is not optimal. In Cohen class representations are known which have a better resolution properties. All of them are created by smoothing the Wigner-Ville'a (WVD) distribution characterized by the best resolution, however, the biggest harmful interference. Used smoothing functions decide about a compromise between the properties of resolution and eliminating harmful interference term. Another class of time-frequency energy distributions is the affine class of distributions. From the point of view of readability of analysis the best properties are known so called Redistribution of energy caused by the use of a general methodology referred to as reassignment to any time-frequency representation. Reassigned distributions efficiently combine a reduction of the interference terms provided by a well adapted smoothing kernel and an increased concentration of the signal components.

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Advanced time-frequency representation in voice signal analysis

Artykuł w czasopiśmie