Jin, Jungdong Jin, Seunghun Lee, SangJun Kim, Hyung Soon Choi, Jong Suk Kim, Munsang Jeon, Jae Wook 2024-01-20T10:02:49Z 2024-01-20T10:02:49Z 2021-09-05 2014-04 1598-1657 https://pubs.kist.re.kr/handle/201004/126932 In this paper, we present the design and implementation of real-time sound localization based on 0.13 mu m CMOS process. Time delay of arrival (TDOA) estimation was used to obtain the direction of the sound signal. The sound localization chip consists of four modules: data buffering, short-term energy calculation, cross correlation, and azimuth calculation. Our chip achieved real-time processing speed with full range (360 degrees) using three microphones. Additionally, we developed a dedicated sound localization circuit (DSLC) system for measuring the accuracy of the sound localization chip. The DSLC system revealed that our chip gave reasonably accurate results in an experiment that was carried out in a noisy and reverberant environment. In addition, the performance of our chip was compared with those of other chip designs. English IEEK PUBLICATION CENTER Real-time Sound Localization Using Generalized Cross Correlation Based on 0.13 mu m CMOS Process Article 10.5573/JSTS.2014.14.2.175 1 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE, v.14, no.2, pp.175 - 183 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE 14 2 175 183 scie scopus kci ART001869267 000336958100006 2-s2.0-84900021730 Engineering, Electrical & Electronic Physics, Applied Engineering Physics Article Sound signal processing time delay of arrival generalized cross correlation application specific integrated circuit microphone arrays