Bio-inspired active amplification in a MEMS microphone using feedback computation

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Guerreiro, José and Reid, Andrew and Jackson, Joseph C. and Windmill, James F.C.; (2017) Bio-inspired active amplification in a MEMS microphone using feedback computation. In: IEEE Biomedical Circuits and Systems Conference 2017. IEEE, ITA. (In Press)

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Abstract

Auditory signal processing relies on feedback mechanisms between mechanical and electrical systems that work together to enhance acoustic conditioning. In this paper a nonlinear amplification mechanism in the mosquito's auditory system is exploited as a model of inspiration. An acoustic system that provides active amplification of sound was developed using feedback computation integrated with a MEMS microphone to implement the concept. Experimental results generated by a purpose-built embedded system show signal amplification and hysteresis which replicate the response shown by the biological mosquito’s hearing system as a function of input sound intensity.

ORCID iDs

Guerreiro, José ORCID logoORCID: https://orcid.org/0000-0002-9187-0436, Reid, Andrew ORCID logoORCID: https://orcid.org/0000-0003-0511-4640, Jackson, Joseph C. and Windmill, James F.C. ORCID logoORCID: https://orcid.org/0000-0003-4878-349X;
CORE (COnnecting REpositories)