TY - GEN
T1 - Optimization of a bio-inspired sound localization sensor for high directional sensitivity
AU - Reid, Andrew
AU - Uttamchandani, Deepak
AU - Windmill, James F. C.
N1 - © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
PY - 2015/12/31
Y1 - 2015/12/31
N2 - Miniaturization of sound localization sensors arrays is heavily constrained by the limited directional cues in intensity difference and phase difference available at the microscale. Micro-Electro Mechanical System (MEMS) sound localization sensors inspired by the auditory system of Ormia ochracea offer a potential solution to this problem by the apparent amplification of the available intensity and phase difference between the measurement points. An inherent limitation of these existing systems is that significant amplification of these cues is only available at or close to one of the resonant frequencies of the device, severely limiting it application as a directional microphone. Here we present the process of optimization of a sound localization sensor for the maximum amplification of directional cues across a narrow bandwidth, increasing the signal to noise ratio and the reading accuracy for sound localization measurements.
AB - Miniaturization of sound localization sensors arrays is heavily constrained by the limited directional cues in intensity difference and phase difference available at the microscale. Micro-Electro Mechanical System (MEMS) sound localization sensors inspired by the auditory system of Ormia ochracea offer a potential solution to this problem by the apparent amplification of the available intensity and phase difference between the measurement points. An inherent limitation of these existing systems is that significant amplification of these cues is only available at or close to one of the resonant frequencies of the device, severely limiting it application as a directional microphone. Here we present the process of optimization of a sound localization sensor for the maximum amplification of directional cues across a narrow bandwidth, increasing the signal to noise ratio and the reading accuracy for sound localization measurements.
KW - bio-inspired
KW - MEMS
KW - Ormia ochracea
KW - sound localization
KW - acoustic transducers
KW - hearing aids
KW - microsensors
KW - damping
KW - frequency measurement
UR - http://www.scopus.com/inward/record.url?scp=84963607061&partnerID=8YFLogxK
UR - http://ieee-sensors2015.org/
U2 - 10.1109/ICSENS.2015.7370605
DO - 10.1109/ICSENS.2015.7370605
M3 - Conference contribution book
AN - SCOPUS:84963607061
SN - 9781479982028
SP - 1
EP - 4
BT - Sensors, 2015 IEEE
CY - Piscataway
T2 - 14th IEEE SENSORS
Y2 - 1 November 2015 through 4 November 2015
ER -
