ToolHuts

Praktische Tools für exaktes Arbeiten

Rechner für RT60 & Nachhallzeit

Schätzen Sie die Nachhallzeit nach Sabine und die insgesamt nötige Absorption für ein editierbares Abklingziel.

m
m
m
sabins
s
Estimated RT600.29s
Room volume62.4m3
Absorption for 0.40 s25.1sabins
Additional absorption0.0sabins

A metric sabin is one square metre of perfectly absorbing surface. Real materials contribute area multiplied by their frequency-dependent absorption coefficient.

Funktionsweise

How to use it: enter internal room dimensions and estimated total absorption at the frequency band of interest. Set a target to estimate how much absorption that target requires.

Formula. Sabine RT60 = 0.161 x room volume / total absorption.

Example. A 62.4 m3 room with 35 sabins has an estimated RT60 of 0.29 seconds.

Beispiel mit aktuellen Eingaben

Das Ergebnis oben verwendet genau diese Werte. Dieser Datensatz wird beim Drucken einbezogen, damit die Ausgabe mit den ursprünglichen Messungen geprüft werden kann.

Room length
5.5 m
Room width
4.2 m
Room height
2.7 m
Total absorption
35 sabins
Target RT60
0.4 s

Hauptergebnis: Estimated RT60: 0.29 s.

Vor Verwendung des Ergebnisses

  • Measure from the datum or reference edge described by this tool, and do not mix inside, outside and centerline dimensions.
  • Keep inputs in the displayed units and preserve more precision than the final cutting or purchasing tolerance requires.
  • When the result is close to a limit, verify it with a test piece, field measurement, manufacturer drawing or qualified project professional.

Einschränkungen

Sabine assumes a diffuse sound field and reasonably even absorption. Small rooms, sparse treatment, low frequencies and highly absorptive rooms can depart substantially. Use band-specific material data and confirm with a calibrated decay measurement.

Häufig gestellte Fragen

What RT60 should a home theater have?

There is no single universal target. Room size, listening use and measurement band matter, so compare against a considered design target rather than treating one number as a pass or fail.