Abstract
In this paper, we present a multi-channel active noise control (ANC) system without secondary path models. The multi-channel ANC system utilizes the perturbation method and has an advantage that secondary path models (estimation of secondary paths) are not required unlike the MEFXLMS algorithm. This system can consequently control noise stably because there are not modeling errors which cause system instability. The computational complexity is also very small. We demonstrate that the multi-channel ANC system using the perturbation method can operate stably in the environment where the secondary paths always change.
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