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

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)

[thumbnail of Guerreiro-etal-BioCAS2017-Bio-inspired-active-amplification-in-a-MEMS-microphone-using]
Preview
 Text. Filename: Guerreiro_etal_BioCAS2017_Bio_inspired_active_amplification_in_a_MEMS_microphone_using.pdf
Accepted Author Manuscript
Download (681kB)| Preview

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)