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Implementation of a K-System meter according to Bob Katz’ specifications.



K-Meter supports mono, stereo and 5.1 surround sound signals. All meters have been thoroughly validated. The average meter reads either RMS levels or ITU BS.1770-1 loudness weighted levels.

K-Meter was featured in an article by NPR Labs. Also, some users have reported that they use K-Meter for teaching, while others use it professionally such as in post-production.


K-Meter crashes when the plug-in is loaded / opened

  1. K-Meter requires a processor which supports the SSE2 instruction set (if you run at Windows 8 and above, it does). On Windows, you might also have to install the Visual C++ Redistributable for Visual Studio 2017.

  2. K-Meter comes with a folder called kmeter. This folder must be located in the same folder as the plug-in, so please copy it along and try again!

Where are the LV2 plug-ins?

  • The last release with LV2 plug-ins was version v2.8.1. You can still download them from the "Releases" page.

The stand-alone version does not work

  • Unfortunately, I cannot do anything about it as I did not code this part of the application. The stand-alone works well for me - try using another sound card or deleting the settings file.


For documentation, licenses and further information, please see the manual and the directory doc.

Code of conduct

Please read the code of conduct before asking for help, filing bug reports or contributing to this project. Thanks!


Copyright (c) 2010-2022 Martin Zuther

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see

Thank you for using free software!

VST2 plug-ins

Technically, my VST2 plug-ins are not free software. However, I chose to provide them for your convenience. All other binaries really are free software in the sense of the Free Software Foundation.

VST is a trademark of Steinberg Media Technologies GmbH, registered in Europe and other countries.