EBU R128 Loudness Meter

HoRNet ELM128 screenshotHoRNet ELM 128 is a metering plugin that complies with the EBU R128 standard. The plugin provides five different loudness measurement: momentary, short-term, integrated, dynamic range and true peak.

This new kind of loudness metering comes from broadcasting and aims to reduce the difference in the perceived levels of different programs, to help with this task HoRNet ELM also provide a normalization function that adjusts the gain in realtime so that no signal exceeds the reference set by you.

This meter uses LUFS as measurement units (Loudness Units Full Scale) a LUFS is equivalent to  a dB but the difference come from the pre emphasis filter used before any loudness calculation, this filter compensates the non linearities of the human hear do that any measurement takes into account ho we human perceive sounds.

The five meters use different integration times and metering concepts:

  • Momentary: measures the loudness of the last 400ms
  • Short term: measures the loudness of the last 3s
  • Integrated: it’s the recorded loudness since the beginning of the measurement (or from the last reset operation) but discarding the longest silence parts or the highest passages that may occur in a long program (a movie, a tv show, etc.)
  • Range: is the loudness range of the program in LU
  • True Peak: this meter shows the maximum level of the signal in dBFS using a 4x oversampling (below 192KHz sampling frequency) to faithfully represent the inter-sample peaks.


We don’t provide a demo for ELM128, but we offer a 100% money back guarantee if you don’t like it!


  • EBU R128 compliance
  • Momentary, Short Term, Integrated loudness metering
  • Loudness range display
  • True Peak display
  • Reset and pause
  • Realtime continuous normalization to the reference level
  • Mac OS X (>=10.7) and Windows support
  • 64-bit compatibility both on Mac and Windows
  • Audio Units VST2.4, VST3 and AAX format

Video Overview


Copy protection

The HoRNet ELM128 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!

3 thoughts on “HoRNet ELM128

Mike Tarsia says:

great product used it as soon as i got it for a tv commercial a client wanted mastered ..great price too .. thanks!

Miguel Angel Caballero says:

Excelent plugin and works like a charm in PRO TOOLS 10 !!
I use it a lot of times but I miss the posibility to "RENDER" to a NEW FILE (or sound clip) the analysed track, in order to have 2 FILES (original and rendered at EBU-R128) as in AUDIO SUITE.

Thank you so much !!

pascal Herr says:

Saverio once again a great product thank you for your good work you are doing for a great price

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