Active Noise Control is particularly suitable in situations where monotonous and low-frequency noise is a problem – for example, near transformers, ventilators, compressors and engines.
We have found that ANC can provide a good performing acoustic solution in these types of situations, but the implementation will be challenging and in most situations it won’t offer a cost-effective solution. Unfortunately, there is no one-size-fits-all solution and every installation requires a highly customised solution. The speakers and microphones in the ANC system must operate continuously for it to work effectively, which means the monitoring and maintenance requirements are much more demanding compared to passive solutions. Furthermore, ANC only reduces the noise locally, i.e. in the vicinity of the sensor microphones. This means that ANC is not capable of reducing noise in an open space, and for example, cannot reduce the sound level of a noisy machinery in an open factory floor environment.
We recommend fully exploring options for passive solutions in your application before considering ANC, as they will provide a more efficient solution. At Merford, we have access to a wide array of innovative solutions, and we’d be more than happy to assess your situation and help you find the right solution to your noise problem.
