Voice activity detection G729B improvement technique using K-Nearest Neighbor method

Author

Wibowo, Suryo Adhi ; Usman, Koredianto

Author_Institution

Fac. of Electr. & Commun. Eng., Inst. Teknol. Telkom, Bandung, Indonesia

fYear

2010

fDate

2-3 Aug. 2010

Firstpage

1

Lastpage

5

Abstract

ITU-T G.729B describes about Discontinuous Transmission (DTX) in the system. Discontinuous Transmission (DTX) is known as a transmission method that transmits a few bits of voice under influenced of background noise or un-voiced signal. This characteristic gives advantageous in voice activity detection to classify signal. In this paper we improve the performance of voice activity detection G729B using K-Nearest Neighbor method for voice or unvoiced classification. Computer simulations showed that this method has performance better than the original VAD G729B in all tested noise conditions.

Keywords

signal classification; speech processing; voice communication; DTX method; background noise; computer simulation; discontinuous transmission method; k-nearest neighbor method; unvoiced classification; unvoiced signal; voice activity detection G729B improvement technique; voice classification; Equations; Mathematical model; Multimedia communication; Noise measurement; Signal to noise ratio; Speech; Classification; Discontinuous Transmission; K-Nearest Neighbor; VAD G729B;

fLanguage

English

Publisher

ieee

Conference_Titel

Distributed Framework and Applications (DFmA), 2010 International Conference on

Conference_Location

Yogyakarta

Print_ISBN

978-1-4244-9335-7

Type

conf

Filename

5952339