A Duct Based Experimental Setup for Active Noise Control

Low-cost and highly effective noise reduction has recently become one of the substantial challenges for industrial manufacturers. This paper presents the design and construction of a cost-effective system for attenuating single-frequency annoying noise generated from industrial products and machines. To achieve this goal, narrowband active noise control using Filtered-x Least Mean Square (FxLMS) method has been used with the help of a two-factor digital adaptive filter, called the adaptive notch filter. Therefore, a duct structure has been designed, and experimental tests have been performed. To reduce implementation costs, the Arduino Uno board, which has an AVR microcontroller (ATmega328P), has been used as the controller. About 15dB noise attenuation at 400Hz and 750Hz frequencies and about 30dB noise attenuation at 650Hz and 950Hz frequencies have been achieved. Then, active noise control for two separate and simultaneous frequencies was performed, which had somewhat effective results, and in one of these frequencies, noise attenuation of about 18dB was observed.

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A Duct Based Experimental Setup for Active Noise Control

Cited by 2 publications

References 8 publications

Active Noise Control for PVC Duct Using Robust Feedback Neutralization F×LMS Approach

Active Noise Control for PVC Duct Using Robust Feedback Neutralization F×LMS Approach

Narrowband active noise control in a duct using FxLMS method based on the AVR microcontroller

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