Active Noise Control for Hearing Protection using a Lowpower Fixed Point Digital Signal Processor
Blekinge Institute of Technology, School of Engineering, Department of Signal Processing2005 (English)Conference paper (Refereed) Published
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
IdentifiersURN: urn:nbn:se:bth-9857Local ID: oai:bth.se:forskinfo7F7C4EA158AEA249C1257013002E13F9OAI: oai:DiVA.org:bth-9857DiVA: diva2:837824
IWAENC (International Workshop on
Acoustic Echo and Noise Control)