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Free 64 Bit Metering Plugins For Measuring Level, Loudness, Correlation

logic pro hofa plugin

Metering and level measurement plugins allow you to visually analyze your audio signal. When your mix is overcompressed and too loud, your ears will get used to that squashed sound, especially after a very long mixing session. Looking at a meter that measures loudness will help you stay objective, and can help you retain proper dynamics in your mix. So what’s happening on the free metering plugin front? A lot. I’ve made a list of some free 64-bit metering plugins for measuring level, loudness and correlation that could very well replace the metering tools that Logic Pro 9 currently offers.

Free 64 Bit Metering Plugins By HOFA

HOFA 4U Meter, Fader & MS-Pan

HOFA 4U Meter

HOFA 4U Meter, Fader & MS-Pan

Auf wiedersehen Direction Mixer, guten Tag HOFA 4U Meter. Although Logic Pro’s Direction Mixer is not a metering plugin, have a look at the specs of the HOFA plugin and note how it handles metering, panning and Mid/Side levels:

  • inter-sample peak meter, plus an EBU loudness meter.
  • metering: peak, hold, EBU, LRA.
  • EBU scales: LU 9, LU 18, LUFS 9, LUFS 18.
  • EBU modes: Momentary, Short Term, Integral.
  • MS decoder. Balance Mid/Side levels in steps of 0.1 Db.
  • trims, fades and mutes.
  • stereo-mono switch.
  • innovative panorama function (see below).
  • changeable plugin window size.
  • mouse-over tooltips.
  • manual included.
  • latency-free, and supports all common sample rates.
  • parameters are automatable.

About that ‘innovative panorama’ function:

  • dragging the panning triangles you see in the picture pans the signal like Logic Pro’s Direction Mixer would. Remember that this is something different than merely panning a (stereo) signal with the panpot on a Logic Pro channel strip.
  • Holding down while dragging enables panning beyond L/R.
  • Holding down ctrl or shift while dragging, enables Mid/Side panning: “Shift” enables panning width only, “ctrl” is for panning mid only.

HOFA 4U Goniometer & Korrelator

HOFA 4U Gonio

HOFA 4U Goniometer & Korrelator

While you’re turning spatialization into your new specialization, you may need the Goniometer & Korrelatorplugin too:

  • switchable between goniometer and correlation meter
  • new type of goniometer with peak, hold and energy indicator
  • changeable plugin window size
  • manual included
  • latency-free, and supports all common sample rates.

Both plugins are for Mac and PC, 32 and 64 Bit DAWs. Audio Unit, VST, VST3, RTAS and AAX. Registration (email) required. Installation via the HOFA-Plugins Manager application.



MELDAproduction Mloudnessanalyzer
MLoudnessAnalyzer is an ITU-R BS.1770-1 and EBU 3341 compliant loudness meter. Specs:

  • peak meter.
  • momentary, short-term and integrated loudness meters.
  • loudness range meter.
  • Supports EBU+9, EBU+18 and EBU+27 scales.

This plugin is for Mac and PC, 32 and 64 Bit DAWs. Audio Unit, VST, VST3. Download after you’ve proven you’re not a robot! The installer contains all of MELDAproduction’s freebies.

Free Loudness Metering Plugin – LUFSMeter

free loudness metering plugin logic pro x

LUFSMeter is a free loudness metering plugin developed by audio engineer Samuel Gähwiler that enables you to deliver loudness calibrated content.

free loudness metering plugin lufsmeter

LUFSMeter Features

  • Multi-Platform, Multi-Channel.
  • Simple and flexible user interface.
  • Ready to be compiled on Linux.
  • Supports any sample rate.
  • Processes up to 24 channels.
  • Compliant to the ITU-R BS.1770-1/2/3 and EBU R128 specifications

LUFSMeter’s source code is freely available, should you feel the need to verify the correctness of the plugin’s loudness measurement. LUFSMeter requires at least Mac OS X 10.4.4, and is available as VST- and Audio Unit plugin, 32 and 64 bit.

For more info on loudness measurement, the different loudness values the plugin displays, and how to calibrate your audio with the LUFS Meter, visit Klangfreund’s website:

Klangfreund LUFSMeter

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  • D R

    I use SSL X-Ism daily but unfortunately 32 bit only.  Many people also swear by Sonalksis Free-G.

    • danski

      Hey D R, thanks. I couldn’t get the SSL X-Ism to work on my system. Once they make that one 64 bit I’ll add it. Thanks for the tip on the Free-G too. Cheers!

  • Juanverrett

    Can either of these be used as VU meters for gain-staging vocals?

  • danski

    Sure, I don’t see why not. I’d focus on getting the levels right at the source though – if your mic preamp has a meter, use that for metering first. Cheers.

  • SaintMarx

    Let’s not forget Sonalksis FreeG: