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In-Ear Microphone Hybrid Speech Enhancement
Responsible organisation
2002 (English)Conference paper (Refereed) Published
Abstract [en]

This paper presents a novel speech enhancement approach for performing noise reduction in severely disturbed environments. A small microphone for communication purposes is placed inside the external auditory canal to pick up the speech signal originating from the speech production organ. The speech enhancement is achieved by using three different noise reduction methods: High frequencies are attenuated by passive absorbers, low frequency components are attenuated by employing active noise control and finally a broadband noise reduction is achieved by using spectral subtraction.

Abstract [sv]

En mikrfon för kommunikationsändamål placeras i hörselgången på en användare som sedan utrustas med ett par aktiva hörselkåpor. Signalen från mikrofonen behandlas sedan med så kallad "spektral subtraktion" för att ytterligare dämpa eventuellt bakgrundsbuller. Resultatet blir en signal med reducerad buller tack vare att passiv och aktiv bullerdämpning samt spektral subtraktion.

Place, publisher, year, edition, pages
Kaua'i, HI, USA: ACTA Press , 2002.
Keyword [en]
Ear-mic, speech enhancement, spectral subtraction, active noise control
National Category
Signal Processing
URN: urn:nbn:se:bth-10052Local ID: 0-88986-340-7OAI: diva2:838064
the Fourth IASTED International Conference Signal and Image Processing (IASTED2002)
Available from: 2012-09-18 Created: 2002-11-08 Last updated: 2015-06-30Bibliographically approved

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Dahl, MattiasClaesson, Ingvar
Signal Processing

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ReferencesLink to record
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