A noise gate is a clever device that will silence a track that drops below a set volume threshold. This is especially useful when dealing with sound sources that have a lot of background noise. When that sound source is quiet, the noise may be audible, which adds a layer of unwanted "dirt" to a recording. By using a noise gate you can keep the recorded track clean. Guitarists may use Noise Gate & Suppressor Effects Pedals which is the same effect, but in a stomp-box casing. As with everything we sell, all our Noise Gates are supported by our price & satisfaction guarantees and free standard shipping applies to all orders except heavy items.