Performance comparison of UCA and UCCA based real-time sound source localization systems using circular harmonics SRP method. (July 2020)

• Record Type: Journal Article
• Authors: Zhang, Zhe; Wu, Ming; Han, Xinyu; Yang, Jun
• Is Part Of: Applied acoustics. Volume 164(2020)
• Publication Date: 2020-07
• Subjects: Sound source localization -- Circular microphone array -- Eigenbeamforming; Acoustical engineering -- Periodicals; Periodicals; 620.2
• DOI: 10.1016/j.apacoust.2020.107241
• Languages: English
• ISSNs: 0003-682X

Abstract

Abstract: Many sound source localization (SSL) algorithms based on circular microphone array (CMA), including uniform circular array (UCA) and uniform concentric circular array (UCCA), have been well developed and verified via computer simulations and offline processing. On the other hand, beamforming in the harmonic domain has been shown to be a very efficient tool for broadband sound source localization due to its frequency-invariant properties. In this paper, design, implementation, and performance of a real-time sound source localization system are discussed. Specifically, we analyze the effect of parameter settings and compare the performance between UCA and UCCA through real-time experiments in a real room. The proposed method shows significant improvement by using UCCA instead of UCA.