Wide aperture arrays for locating impulsive sound sources in air and underwater

2006 ◽  
Author(s):  
Brian G. Ferguson
Keyword(s):  
Sound Sources ◽  
Wide Aperture ◽  
Aperture Arrays

PiezogranTM: High sensitivity/low‐cost composites for wide aperture arrays

1997 ◽  
Vol 101 (5) ◽  
pp. 3093-3093
Author(s):  
Todd L. Jessen ◽  
Manfred Kahn ◽  
Mark T. Chase
Keyword(s):  
Low Cost ◽  
High Sensitivity ◽  
Wide Aperture ◽  
Aperture Arrays

Role of pinnae and head movements in localizing pure tones 1The authors would like to thank Mr. Remi Humbert for implementing the experiment in Turbo Pascal and for his further assistance.

1999 ◽  
Vol 58 (3) ◽  
pp. 170-179 ◽  
Author(s):  
Barbara S. Muller ◽  
Pierre Bovet
Keyword(s):  
Sound Source ◽  
Head Movement ◽  
Movement Analysis ◽  
Head Movements ◽  
Sound Sources ◽  
Localization Accuracy ◽  
Sound Effects ◽  
Posterior Quadrant ◽  
Localization Performance ◽  
Pure Tones

Twelve blindfolded subjects localized two different pure tones, randomly played by eight sound sources in the horizontal plane. Either subjects could get information supplied by their pinnae (external ear) and their head movements or not. We found that pinnae, as well as head movements, had a marked influence on auditory localization performance with this type of sound. Effects of pinnae and head movements seemed to be additive; the absence of one or the other factor provoked the same loss of localization accuracy and even much the same error pattern. Head movement analysis showed that subjects turn their face towards the emitting sound source, except for sources exactly in the front or exactly in the rear, which are identified by turning the head to both sides. The head movement amplitude increased smoothly as the sound source moved from the anterior to the posterior quadrant.

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