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Active Noise Control for Hearing Protection using a Lowpower Fixed Point Digital Signal Processor
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2005 (English)Conference paper (Refereed) Published
Abstract [en]

This contribution presents a fixed point implementation for acoustical active noise control in hearing defenders. The well known filtered-x least mean squares structure is conformed to fixed point arithmetic and evaluated in real time. The measured performance of the implementation is 20dB to 30dB attenuation of broad band noise and ca 60dB for sinusoidal interference. The implementation uses a low power fixed point digital signal processor and is well suited for industry application.

Place, publisher, year, edition, pages
Eindhoven, 2005.
National Category
Signal Processing
URN: urn:nbn:se:bth-9857Local ID: diva2:837824
IWAENC (International Workshop on Acoustic Echo and Noise Control)
Available from: 2012-09-18 Created: 2005-06-01 Last updated: 2015-06-30Bibliographically approved

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Håkansson, LarsClaesson, Ingvar
Signal Processing

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