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| Active Loudness Control of Enclosed Cabin Noise by Using New Algorithm |
| JIANG Shun-ming1,2 ， CHEN Nan1 |
| 1.School of Automobile and Traffic Engineering, Jiangsu University, Jiangsu Zhenjiang 212013,China2.College of Mechanical Engineering, Southeast University, NanJing 211189,China |
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Abstract The control objective of active noise control (ANC) system is modified from minimizing sound pressure to minimizing loudness. The improved loudness-filtered least square mean (LFLMS) algorithm is derived based on delay-compensated structure and inverse-model structure. A double channel ANC system is installed in a passenger car cabin. Three algorithms are used to attenuate the engine noise in the cabin. The experimental results indicate that the improved LFLMS algorithm converge faster than LFLMS algorithm, and the loudness control can achieve better subjective effects than the sound pressure control in terms of loudness reduction.
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Received: 20 December 2011
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2013, Vol. 32 
