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Reflex Acoustics releases free Dynamic Range Meter plugin (VST3/AU)

Reflex Acoustics

Reflex Acoustics has released Reflex Dynamic Range Meter, a free plugin that helps to visualize dynamic range across the frequency spectrum.

From the company:

The dynamic range of a musical signal is difficult to boil down to a single metric. Our approach is to show you a histogram of the momentary loudness of every 5-millisecond grain in your signal, both for the signal as a whole as well as individual frequency bands.

We hope this tool can help producers and engineers to identify potential areas of their material that lack dynamism relative to reference tracks.


  • Loudness distribution of 5ms grains over the last 3 or 15 seconds, charted relative to mean loudness.
  • Colored bars for Peak (green), 90th percentile (blue), 10th percentile (pink) and Low (red).
  • Scrolling waveform display of last 1 second, at 5-millisecond resolution (click display to freeze waveforms).
  • Mid and Side modes, and a readout of side level relative to mid for each frequency band.
  • LUFS meter showing short-term (i.e. 3-second trailing) perceived loudness.
  • Two filter modes: "Eco." is lighter on CPU, but introduces visible artifacts in the waveform displays for the eight frequency bands; Linear Phase ("Lin.") has a very clean band separation, albeit with variable latency across the lower-frequency bands, meaning that transient peaks no longer align across the displays.

Technical notes:

  • Available in VST3 format for PC, and VST3 & AU formats for Mac. AAX support coming soon.
  • Requires a compatible Digital Audio Workstation or other plugin host.


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