Tech tutorials: how to install SDR# Audio Waterfall plugin
![](https://static.wixstatic.com/media/c96209_7ae0d378838a449381c6a3372d4c6948~mv2.png/v1/fill/w_980,h_231,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/c96209_7ae0d378838a449381c6a3372d4c6948~mv2.png)
The above image is part of a screenshot showing an "Audio Waterfall" in SDR#. It is essentially an audio spectrum analyzer. The SDR# software is available for download at http://airspy.com/download/ as a zip file which may be extracted anywhere (e.g. C:\sdrsharp-x86)
In order to add the "Audio Waterfall" feature to SDR# download the
SDRSharp.AudioWaterfall.dll file and copy it to the installation location of SDR# (e.g. C:\sdrsharp-x86). Then in the SDR# folder edit the Plugins.xml file to include the following line:
<add key="Audio Waterfall" value="SDRSharp.AudioWaterfall.AudioWaterfallPlugin,SDRSharp.AudioWaterfall" />
The plugin works with the latest version of SDR# rev 1488!