Suboptimal controller design of global active noise control system for various acoustic environments

Configuration method of control speakers and error microphones

The ANC system consists of a reference sensor, control speaker, and error microphone⁴⁹. We are not focusing on a specific noise source because the goal is to verify the feasibility of the proposed method regardless of the noise source. The reference sensor’s type and configuration depend on the noise source’s characteristics. Therefore, we will not cover the type or configuration method of the reference sensor in this paper. The loudspeaker with a freely configurable frequency range from which the reference signal (speaker input…