Expander

An expander is an audio processing tool that functions opposite to a compressor, activating when the signal falls below a set threshold. By increasing the dynamic range of a signal, expanders enhance clarity and definition in audio recordings. Learn how to utilize expanders for improved sound quality.

Benefits of Using Expanders

Expanders can effectively replace noise gates in certain situations, offering a more subtle and transparent effect. Unlike noise gates, which can create a sharp cut-off, the gradual drop-off of signal levels below the threshold with an expander results in a smoother transition.

Expansion Ratio

The expansion ratio is the inverse of a compression ratio. For example, while a compressor might operate at a ratio of 4:1, an expander would have a ratio of 1:4. This means that for every 1 dB decrease in the input level, the output level decreases by 4 dB, allowing for greater dynamic range and improved audio fidelity.