HoRNet CLMS Receive HoRNet CLMS Send

Avoid the “loudness deception” trap

HoRNet CLMS is designed to solve the “loudness deception” issue allowing for a constant loudness mixing experience.

As is widely known the human ear perceive each frequency differently at different loudness levels, this effect may lead to misjudgement while taking decision in mastering and mixing.

When using any effect like an equaliser or a compressor the level of the affected signal may change significantly and this variance may let you take wrong mixing decisions.

HoRNet CLMS takes the loudness factor out of the equation simply keeping the loudness level constant during monitoring.

CLMS is based around the concept of LU (Loudness Units) and it’s actually two different plugins, one is called HoRNetCLMS_Send (used to “read” the LU level of the track before processing) and the other one, called HoRNetCLMS_Receive that is usually set as the las plugin of the master chain and has the duty to apply the necessary gain to keep everything at the sender’s level.

CLMS inner working is quite easy, the HoRNetCLMS_Send reads the LU level of the track and stores it in a common memory area, then HoRNetCLMS_Receive reads that area, compute the differences between its input LU level and the one recorded by HoRNetCLMS_Send, and applies the necessary gain to keep the output level at the same LU amount of the one recorded by HoRNetCLMS_Send.

You can put as many HoRNetCLMS_Send as your mixing or mastering session needs, the plugin provides a button that “enables” the communication between the sender and the receiver, this channel is mutually exclusive, only one sender can talk to the receiver at time.

On the HoRNetCLMS_Receive we have also put a cool LUFS normalisation utility, you can choose the target level for normalisation clicking on its text box, then click the “analyze” button to let the plugin record the average LU level of the the track, once finished, enable the “normalize” button and let it change the gain to make the track as loud as you want.


Video Overview

Demo limitation

The demo is fully functional except for the fact that every now and then it will silence out, you cannot save parameter values with your session and the plugin will not respond to automation coming from the host.


  • Continuous monitoring of loudness level
  • As many  HoRNetCLMS_Send as you desire
  • Real time loudness adjustment
  • Loudness display on both sender and receiver
  • Loudness normalization to the requested level
  • Mac OS X (>=10.7) and Windows support.
  • 64-bit compatibility both on Mac and Windows.
  • Audio Units, VST, VST3 and AAX format.

Copy protection

The HoRNet CLMS has no copy protection, we don’t believe in copy protection, they are always cracked and they are annoying for the users, we all know you are not going to give away the plugin on the internet…

So simply download the plugin and enjoy your recordings!

4 thoughts on “HoRNet CLMS

Shawn waters says:

Confusing! Do both go on the master bus! One. Before the other? Its not clear on instructions

admin says:

Please have a look to the instruction video we made. https://www.youtube.com/watch?v=rWrLAURuCC0&t=2s

Christopher Short says:

This is a fantastic concept and I love working with this when really going surgical on parts

Please create a detailed instruction manual. We don't want to refer to a video, especially when we need to scan through and double check/refresh our memories on something. Reading is faster than videos.

Finally, I recommend this plugin as a temporary tool. I do not recommend leaving this always on. It is fast, but I don't think any plugin can be fast enough to compensate for big changes; it has threatened my speakers a couple times adapting between parts that have big dynamic differences.

I put this on when I have cycle on and I'm really zeroed in on a part or track, and I turn it off when I'm done. In this way, this plugin is spectacular and a must have.

Escapment Dog says:

A very useful utility for working in lufs. If you have a daw that doesn't work in lufs this is a very easy way to add lufs monitor and gain. It makes it very easy to normalize to lufs along with the ability to learn lufs for multiple tracks at the same time, while you go do something else like walk your dog.

The read plugin is useful for effect chains that don't "chop" audio (like a trance gate) or time shift like a delay. Instead, I'm using it to wrap my eq/compression to keep the lufs constant despite how I alter my my freq content. Eliminates a lot of a/b switching.

Overall it is saving me days in my creative mix.

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