MAAT Inc. – DROffline

Truly the Only Way to Measure DR
MAAT’s DROffline native batch measurement app is the only software that generates official DR readings. Offering essential options for musically justified, file–based metering, DROffline includes DR dynamic range, SPPM Peak and RMS amplitude. One file can be evaluated, or an entire directory can be measured in batch mode.

What is DR?
The DR algorithm, akin to PLR (Peak–to–Loudness Ratio) or “crest factor,” specifically measures the dynamic density or lack of dynamics caused by overly aggressive dynamic compression and limiting. Although the companion DRMeter provides an estimate of the "official" DR Value, only the DROffline utility can generate official values, which are cumulative over the entire length of a song. Only DROffline can scrub through an entire song or track, resulting in an official DR number.

The complete DR metering system, composed of the realtime DRMeter plus the DROffline batch processor, was created by Friedemann Tischmeyer to address the need to generate a repeatable, easy to understand numeric value. Seeing a meaningful and easy to understand indication of dynamic range inspires users to back away from hyper compression.

Not Only The Doctor Has a Companion
The companion DRMeter is a plug-in that generates approximate DR values when applied to the loudest passages in a track. Due to its realtime operation, it cannot measure official DR values, but it can estimate DR while you work.


  • Broadcast
  • Multimedia & IT
  • Other Subjects
  • Post Production


List price USD 15.00 excl. VAT
Price range of typical configurations USD 15.00 to 15.00 excl. VAT
Please refer to the official sales outlets for up-to-date prices.

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