Sound Source Localization using Sparse Coding and SOM
- Sound Source Localization using Sparse Coding and SOM
- 김홍식; 최종석
- binaural sound localization; sparse coding
- Issue Date
- IEEE Conf. on Emergin Technologies and Factory Automation 2009
- Many kinds of sound source localization systems have
been developed for detecting a direction of sound source.
They are commonly using time delay of arrival (TDOA)
or interaural time difference (ITD) algorithm for sound
source localization where, especially, the ITD is the difference
in arrival time of a sound between two ears. It is
largely changed depending on frequency components of
sound even though the sound source is located in the
same place. In this paper we propose a binaural sound
localization system using sparse coding based ITD (SITD)
and self-organizing map (SOM). The sparse coding
is used for decomposing given sounds into three components:
time, frequency and magnitude. Moreover we estimate
the azimuth angle through the SOM. This localization
system is installed in our robot that has two ears,
head and body. We use PeopleBot as a body of the robot.
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- KIST Publication > Conference Paper
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