HoRNetCLMS_Send
HoRNetCLMS_Send is an AAX loudness-compensation plugin for Avid Pro Tools designed to solve the "loudness deception" problem in mixing. It monitors the loudness of individual tracks in Loudness Units (LU) and stores that level in a shared memory area, allowing mix engineers to make EQ and dynamic processing decisions without being influenced by perceived loudness shifts. The plugin works in tandem with HoRNetCLMS_Receive, placed on the master chain, which reads the loudness values and adjusts gain to maintain consistent output loudness. It is used by professional mix and mastering engineers who need to make frequency-based decisions without loudness bias.
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1 suggestionHoRNetCLMS_Send is a plugin component of HoRNet's CLMS loudness system and is updated through HoRNet's own plugin installer, not through Pro Tools directly or the App Store. The vendor released version 1.1.0 in early 2025 with full native Apple Silicon support, so any older Intel-only build should be updated immediately. Visit hornetplugins.com, download and run HoRNet's installer for the latest CLMS plugin bundle, and follow the vendor's installation steps to place the native AAX build in Pro Tools' plug-in folder. Make sure Pro Tools itself is running version 2023.6 or newer, as Pro Tools added full native Apple Silicon support in that release and older versions may have compatibility issues with newer AAX plugins. After updating both Pro Tools and HoRNetCLMS_Send, the plugin will run natively and provide better performance and battery efficiency on M-series Macs.
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