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Articles tagged “EDT

7 articles covering EDT in acoustic engineering and building design.

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GUIDES10 min read

Concert Hall Acoustic Design: Sabine to Simulation

Concert hall acoustic design from Sabine's equation to modern simulation, covering RT60, EDT, C80, lateral fraction, and the Elbphilharmonie case study.

March 20, 2026
concert hall acousticsSabine equation
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STANDARDS13 min readFeatured

ISO 3382: The Complete Guide to Room Acoustic Measurement

Master ISO 3382 room acoustic measurement — RT60, EDT, C50, C80 parameters explained with field examples, equipment lists, and common pitfalls.

March 20, 2026
ISO 3382room acoustics measurement
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GUIDES10 min read

Early Decay Time (EDT) — Why It Matters More Than RT60 for Listeners | AcousPlan

Early Decay Time (EDT) explained: how it differs from RT60, why it correlates better with perceived reverberation, ISO 3382-1 measurement method, and design implications for auditoria.

March 19, 2026
EDTearly decay time
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INCIDENT16 min read

10 Concert Halls Compared: RT60, EDT, C80, and What Makes Each One Sound Different

Published acoustic data compared across 10 world-famous concert halls: Vienna Musikverein, Boston Symphony Hall, Berlin Philharmonie, Amsterdam Concertgebouw, and more.

March 18, 2026
concert hall comparisonRT60
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GUIDES15 min read

Concert Hall Acoustic Design: All 7 ISO 3382-1 Parameters Explained With Famous Hall Data

A comprehensive analysis of all seven ISO 3382-1:2009 acoustic parameters — EDT, T30, G, C80, D50, IACC, and LF — with measured data from the Vienna Musikvereinssaal, Berlin Philharmonie, Amsterdam Concertgebouw, Boston Symphony Hall, and Tokyo Opera City. Includes target ranges, calculation methods, and why each parameter matters for musical perception.

March 14, 2026
concert hall acousticsISO 3382-1
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PILLAR17 min readFeatured

RT60 Complete Reference — History, Physics, Measurement, Standards, and Optimal Values

The definitive RT60 reference covering the history from Sabine's 1900 experiments, the physics of exponential decay, measurement methods per ISO 3382-2, Sabine vs Eyring vs Fitzroy equations with worked examples, T20/T30/EDT definitions, optimal values for 20+ room types, and famous rooms with their measured RT60 values.

March 14, 2026
RT60 complete guidereverberation time reference
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STANDARDS22 min readFeatured

ISO 3382 Complete Guide: Room Acoustics Measurement and Parameters

ISO 3382 is the international standard for measuring and evaluating room acoustics. Part 1 covers performance spaces, Part 2 covers ordinary rooms, Part 3 covers open plan offices. Here is every parameter, measurement method, and requirement explained — with the specific clause references you need for compliance documentation.

March 14, 2026
ISO 3382room acoustics