Present invention is related to noise barrier based on different frequency. The design of the noise barrier is based on the principle of identifying the disturbing frequencies generated from transport sector. The specific frequencies are grouped into low, middle and high frequency ranges. Noise barriers are designed to specifically kill those disturbing frequencies. This invention is best suited for railways, metro etc where itching noise is a biggest problem on the curve portion. This is also best suitable for road intersections where honking is the biggest problem.