> For the complete documentation index, see [llms.txt](https://docs.lmms.io/user-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lmms.io/user-manual/jp_2/6-built-in-effects/6.7-dynamics-processor.md).

# 6.7 Dynamics Processor

![Dynamics Processor](/files/-LuiSxISumhlYnEcBHvI)

Dynamic Processor allows modification of the signal dynamics in a flexible way. It can be used as a compressor, a gate, an expander, or for any other dynamics modifications.

The curve represents the dynamic range in a linear scale of 0-1 amplitude. The X axis (horizontal) represents the peak level of input, while the Y axis (vertical) represents the target level.

The level of the signal is measured as peak levels. The **attack** and **decay** knobs control the peak meter, i.e. how quickly the peak level rises and falls. These controls are analogous to those of a compressor.

**Input** and **output** control the level of gain applied to the signal pre- and post-processing.

There are three modes of peak detection: maximum, average and unlinked.

* **Maximum:** measures peaks as the maximum peak level between the left and right channel
* **Average:** measures the average between left and right peak levels
* **Unlinked:** measures and processes each channel separately with their own peak levels, but applies the same dynamics curve and pre/post-amplification on both

The buttons can be used to modify the curve.

{% hint style="info" %}
Hold shift to draw straight lines in the graph. Shift+click the start point, the Shift+click at the end point, and a straight line will be drawn between them.
{% endhint %}