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Engineering Brief

Real-time Detection of MEMS Microphone Array Failure Modes for Embedded Microprocessors

Authors: Stanford-Jason, Andrew

AES Convention 143 · Paper 402 · October 2017

Abstract

In this paper we describe an online system for real-time detection of common failure modes of arrays of MEMS microphones. We describe a system with a specific focus on reduced computational complexity for application in embedded microprocessors. The system detects deviations is long-term spectral content and microphone covariance to identify failures while being robust to the false negatives inherent in a passively driven online system. Data collected from real compromised microphones show that we can achieve high rates of failure detection.

Details

Published in
AES Convention 143
AES Convention
143
Paper number
402
Publication date
October 6, 2017
Session subject
Spatial Audio
Affiliation
XMOS Ltd., Bristol, UK (See document for exact affiliation information.)
Type
Engineering Brief