The red line represents the input signal. If the sound is below the threshold, the sound is not let through (the noise gate is closed). Simply put, a noise gate allows a sound to pass when it is above a certain threshold (the noise gate is open). The purpose is not to remove the noise from the sound (once noise is part of a sound it is hard to remove it), but rather to hide it during quiet sections where the track would otherwise only contribute with unnecessary noise. The accumulated noise can go well beyond the audible and turn your mix into a muddy, blurred blend.īy utilizing so called noise gates, we can manage the noise on a track.
Even if you do not or hardly notice the little bit of noise in your sounds, it is simply good practice to remove it as the problem is quickly magnified when dealing with multiple tracks. Hiding background noise from sounds and samples is an important step towards a clean, crisp sounding mix. FL Studio tutorial explaining how to hide noise.