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Convention Paper

Improving the Performance of an In-Home Acoustic Monitoring System by Integrating a Vocal Effort Classification Algorithm

Authors: Principi, Emanuele; Bonfigli, Roberto; Squartini, Stefano; Piazza, Francesco

AES Convention 136 · Paper 9089 · April 2014

Abstract

The research interest in technologies for supporting people in their own homes is constantly increasing. In this context this paper proposes a speech-interfaced system for recognizing home automation commands and distress calls. The robustness of the system is increased by employing Power Normalized Cepstral Coefficients as features and by using an adaptive algorithm to reduce known sources of interference. In addition, the mismatch introduced by vocal effort variability is reduced employing a vocal effort classifier and multiple acoustic models. The performance has been evaluated on ITAAL, a recently proposed corpus of home automation commands and distress calls in Italian. The results confirm that the adopted solutions are effective to be employed in a distorted acoustic scenario.

Details

Published in
AES Convention 136
AES Convention
136
Paper number
9089
Publication date
April 6, 2014
Session subject
Applications in Audio/Education/Forensics
Affiliation
Università Politecnica delle Marche, Ancona, Italy (See document for exact affiliation information.)
Type
Convention Paper