Correcng the public address (PA) system during a concert event is one of the crucial tasks in ensuring acousc comfort. However, the exisng approaches to such correcon do not allow for real-me adaptaon to changes in the acousc properes of the venue that occur during the event. To address this limitaon, this arcle proposes the use of a mulband compressor. It is shown that a zero-latency VST plugin can serve as a mulband compressor. Pink noise can be used as a test signal for system calibraon. The results of tesng the proposed algorithm, conducted through model and real-world experiments, demonstrate the feasibility and effecveness of the proposed approach