They increase dynamic range by turning up the signal when it exceeds a set threshold. Upward expanders are often used to emphasize the peaks of an audio signal. Range: Limits the maximum amount of applied gain change Upward Expanders Ratio: Sets the amount of expansion that is applied Threshold: Sets the level where expansion occurs Release: Sets how fast the expansion recovers after a signal level crosses the threshold These controls also function in the same manner as a compressor:Īttack: Sets how fast expansion responds when a signal level crosses the threshold Many also have a range control such as FabFilter’s Pro-MB. Upward expanders boost the level of an audio signal above the threshold, making loud sounds even louder.Įxpanders often have similar controls as a compressor such as attack, release, threshold, and ratio. Downward expanders reduce the level of an audio signal below the threshold, making quiet sounds quieter. There are two types of expansion: upward expansion and downward expansion. They are essentially the opposite of a compressor, which decreases the dynamic range of an audio signal. FabFilter Pro-MB What are Expanders?Įxpanders are helpful dynamic processing tools that increase the dynamic range of an audio signal. Gain a better understanding of upward and downward expansion and learn how to use expanders to enhance sounds in your mix.
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