Audio Source Localization using a Network of Embedded Devices

• Main Authors: FRANGU, L., MAZAREL, M., CHICULITA, C.
• Format: Article
• Language: English
• Published: Stefan cel Mare University of Suceava 2010-05-01
• Series: Advances in Electrical and Computer Engineering
• Subjects: audio source; direction of arrival (DoA); embedded devices; position measurement; sensor network
• Online Access: http://dx.doi.org/10.4316/AECE.2010.02023
• ISSN: 1582-7445; 1844-7600

In this paper, a problem of audio source localization is solved, using a network of embedded devices. The intensive computing procedures (such as the crosscorrelation functions) are performed by the embedded devices, which have enough speed and memory for this task. A central computer computes the position in a fast procedure, using the data transmitted by the network nodes, and plays the role of operator interface. The paper also contains the description of the embedded devices, which are designed and manufactured by the authors. They prove to be suited for this kind of application, as they perform fast computation and require low power and small space for installing.