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Multiple sound sources localization in free field using acoustic vector sensor.

Kotus J - Multimed Tools Appl (2015)

Bottom Line: The setup of the experiment and obtained results were described in details in the text.Taking the obtained results into consideration is important to emphasize that the localization of the multiple sound sources using single acoustic vector sensor is possible.The localization accuracy was the best for signals which spectral energy distribution was different.

View Article: PubMed Central - PubMed

Affiliation: Multimedia Systems Department, Gdansk University of Technology, Narutowicza 11-12, 80-233 Gdansk, Poland.

ABSTRACT

Method and preliminary results of multiple sound sources localization in free field using the acoustic vector sensor were presented in this study. Direction of arrival (DOA) for considered source was determined based on sound intensity method supported by Fourier analysis. Obtained spectrum components for considered signal allowed to determine the DOA value for the particular frequency independently. The accuracy of the developed and practically implemented algorithm was evaluated on the basis of laboratory tests. Both synthetic acoustic signals (pure tones and noises) and real sounds were used during the measurements. Real signals had the same or different energy distribution both on time and frequency domain. The setup of the experiment and obtained results were described in details in the text. Taking the obtained results into consideration is important to emphasize that the localization of the multiple sound sources using single acoustic vector sensor is possible. The localization accuracy was the best for signals which spectral energy distribution was different.

No MeSH data available.


The block diagram of the proposed algorithm. Red rectangle indicate the most important part of the developed method
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Fig1: The block diagram of the proposed algorithm. Red rectangle indicate the most important part of the developed method

Mentions: Proposed, implemented and practically evaluated algorithm to multiple sound sources localization is based on calculation sound intensity level in frequency domain. It is a quite different approach in opposite to methods which rely on sound intensity calculation in the time domain. The block diagram of the algorithm was presented in Fig. 1. Calculation process was divided into six functionally different steps. Particular phases were described in details below.Fig. 1


Multiple sound sources localization in free field using acoustic vector sensor.

Kotus J - Multimed Tools Appl (2015)

The block diagram of the proposed algorithm. Red rectangle indicate the most important part of the developed method
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4551168&req=5

Fig1: The block diagram of the proposed algorithm. Red rectangle indicate the most important part of the developed method
Mentions: Proposed, implemented and practically evaluated algorithm to multiple sound sources localization is based on calculation sound intensity level in frequency domain. It is a quite different approach in opposite to methods which rely on sound intensity calculation in the time domain. The block diagram of the algorithm was presented in Fig. 1. Calculation process was divided into six functionally different steps. Particular phases were described in details below.Fig. 1

Bottom Line: The setup of the experiment and obtained results were described in details in the text.Taking the obtained results into consideration is important to emphasize that the localization of the multiple sound sources using single acoustic vector sensor is possible.The localization accuracy was the best for signals which spectral energy distribution was different.

View Article: PubMed Central - PubMed

Affiliation: Multimedia Systems Department, Gdansk University of Technology, Narutowicza 11-12, 80-233 Gdansk, Poland.

ABSTRACT

Method and preliminary results of multiple sound sources localization in free field using the acoustic vector sensor were presented in this study. Direction of arrival (DOA) for considered source was determined based on sound intensity method supported by Fourier analysis. Obtained spectrum components for considered signal allowed to determine the DOA value for the particular frequency independently. The accuracy of the developed and practically implemented algorithm was evaluated on the basis of laboratory tests. Both synthetic acoustic signals (pure tones and noises) and real sounds were used during the measurements. Real signals had the same or different energy distribution both on time and frequency domain. The setup of the experiment and obtained results were described in details in the text. Taking the obtained results into consideration is important to emphasize that the localization of the multiple sound sources using single acoustic vector sensor is possible. The localization accuracy was the best for signals which spectral energy distribution was different.

No MeSH data available.