![recompress audio recompress audio](https://i.ytimg.com/vi/bCFAz5DV_AE/maxresdefault.jpg)
Short attack times will result in a fast response to sudden, loud sounds, but will make the changes in volume much more obvious to listeners. If volume changes are slow, you can push this to a high value.
![recompress audio recompress audio](https://images.wondershare.com/videoconverter/en/video-editing-tips/avi-joiner-2.jpg)
This enables the "attack" stage of the effect to work in advance of increasing level as can be seen in the example below. In practice the effect works internally in a rather more complex manner in that, as it processes the sound, it looks ahead to determine if there are high peaks coming up.
![recompress audio recompress audio](https://233b1d13b450eb6b33b4-ac2a33202ef9b63045cbb3afca178df8.ssl.cf1.rackcdn.com/tip-uploads/2016/01/Fig-6.png)
The principle of how each control works is described below.