Multiple sources localization with microphone array: A subarray approach

2011 ◽  
Vol 130 (4) ◽  
pp. 2451-2451 ◽  
Author(s):  
Kai-Chung Tam ◽  
Siu-Kit Lau ◽  
Shiu-Keung Tang
Keyword(s):  
Microphone Array ◽  
Multiple Sources

scholarly journals Incident Signal Power Comparison for Localization of Concurrent Multiple Acoustic Sources

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Daniele Salvati ◽  
Sergio Canazza
Keyword(s):  
Open Space ◽  
Traditional Approach ◽  
Microphone Array ◽  
Measurement Techniques ◽  
Signal Power ◽  
Noisy Environment ◽  
Multiple Sources ◽  
Power Comparison ◽  
Open Spaces ◽  
Acoustic Sources

In this paper, a method to solve the localization of concurrent multiple acoustic sources in large open spaces is presented. The problem of the multisource localization in far-field conditions is to correctly associate the direction of arrival (DOA) estimated by a network array system to the same source. The use of systems implementing a Bayesian filter is a traditional approach to address the problem of localization in multisource acoustic scenario. However, in a real noisy open space the acoustic sources are often discontinuous with numerous short-duration events and thus the filtering methods may have difficulty to track the multiple sources. Incident signal power comparison (ISPC) is proposed to compute DOAs association. ISPC is based on identifying the incident signal power (ISP) of the sources on a microphone array using beamforming methods and comparing the ISP between different arrays using spectral distance (SD) measurement techniques. This method solves the ambiguities, due to the presence of simultaneous sources, by identifying sounds through a minimization of an error criterion on SD measures of DOA combinations. The experimental results were conducted in an outdoor real noisy environment and the ISPC performance is reported using different beamforming techniques and SD functions.

Sound Source Localization

2010 ◽  
pp. 126-161 ◽  
Author(s):  
Banu Günel ◽  
Hüseyin Hacihabiboglu
Keyword(s):  
Source Localization ◽  
Hearing Aids ◽  
Sound Source ◽  
Microphone Array ◽  
Sound Source Localization ◽  
Direction Of Arrival Estimation ◽  
Multiple Sources ◽  
Theoretical Evaluation ◽  
Processing Methods ◽  
Localization Method

Automatic sound source localization has recently gained interest due to its various applications that range from surveillance to hearing aids, and teleconferencing to human computer interaction. Automatic sound source localization may refer to the process of determining only the direction of a sound source, which is known as the direction-of-arrival estimation, or also its distance in order to obtain its coordinates. Various methods have previously been proposed for this purpose. Many of these methods use the time and level differences between the signals captured by each element of a microphone array. An overview of these conventional array processing methods is given and the factors that affect their performance are discussed. The limitations of these methods affecting real-time implementation are highlighted. An emerging source localization method based on acoustic intensity is explained. A theoretical evaluation of different microphone array geometries is given. Two well-known problems, localization of multiple sources and localization of acoustic reflections, are addressed.

Agreeableness, Conflict Resolution Tactics, and School Behavior in Second Graders

2016 ◽  
Vol 37 (3) ◽  
pp. 145-151 ◽  
Author(s):  
Daniel L. Gadke ◽  
Renée M. Tobin ◽  
W. Joel Schneider
Keyword(s):  
Conflict Resolution ◽  
Problem Behaviors ◽  
Second Graders ◽  
Adaptive Behaviors ◽  
Second Grade ◽  
School Behavior ◽  
Multiple Sources ◽  
School Based ◽  
Second Grade Students ◽  
Negotiation Tactics

Abstract. This study examined the association between Agreeableness and children’s selection of conflict resolution tactics and their overt behaviors at school. A total of 157 second graders responded to a series of conflict resolution vignettes and were observed three times during physical education classes at school. We hypothesized that Agreeableness would be inversely related to the endorsement of power assertion tactics and to displays of problem behaviors, and positively related to the endorsement of negotiation tactics and to displays of adaptive behaviors. Consistent with hypotheses, Agreeableness was inversely related to power assertion tactics and to displays of off-task, disruptive, and verbally aggressive behaviors. There was no evidence that Agreeableness was related to more socially sophisticated responses to conflict, such as negotiation, with our sample of second grade students; however, it was related to displays of adaptive behaviors, specifically on-task behaviors. Limitations, including potential reactivity effects and the restriction of observational data collection to one school-based setting, are discussed. Future researchers are encouraged to collect data from multiple sources in more than one setting over time.

College Student Academic Performance: Coping and Exercise as Mediators of Multiple Sources of Stress

2008 ◽  
Author(s):  
Joseph R. Scotti ◽  
Brittany Joseph ◽  
Christa Haines ◽  
Courtney Lanham ◽  
Vanessa Jacoby
Keyword(s):  
Academic Performance ◽  
College Student ◽  
Multiple Sources ◽  
Student Academic Performance

Coping Skills in College Students in the Response to Multiple Sources of Stress and Trauma

2009 ◽  
Author(s):  
Courtney Lanham ◽  
Vanessa Jacoby ◽  
Brittany Joseph ◽  
Ashley Barnes ◽  
Andrea Jones ◽  
...  
Keyword(s):  
College Students ◽  
Coping Skills ◽  
Multiple Sources
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