Skip to main content

Articles tagged “C80

8 articles covering C80 in acoustic engineering and building design.

📐
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
📋
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
🎓
TUTORIALS5 min read

What Are Early Reflections? The First 50ms That Shape What You Hear

Early reflections are the first sound reflections arriving within 50-80ms of the direct sound. Learn how they affect clarity, spaciousness, and speech intelligibility in room acoustics.

March 20, 2026
early reflectionsroom acoustics
📐
GUIDES9 min read

Auditorium Acoustic Design — ISO 3382 Parameters & Design Guide | AcousPlan

Auditorium acoustic design using ISO 3382-1 parameters: RT60, EDT, C80, D50, LF, and IACC. Design targets, measurement methods, and strategies by auditorium size and use.

March 19, 2026
auditoriumISO 3382
⚠️
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
🎓
TUTORIALS9 min read

What Is Clarity (C80) and Definition (D50)? — Room Acoustic Parameters Explained

C80 and D50 measure how clearly individual notes and syllables stand out in a room. Learn what these ISO 3382 parameters mean, how they're calculated, and what values suit music versus speech.

March 18, 2026
C80D50
📐
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
📋
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