IRIS 1.4 Docs

IRIS is a room acoustics measurement system developed by Marshall Day Acoustics in New Zealand. It was released at the beginning of 2014 as a fully integrated hardware and software system for making 3D impulse response measurements. It is now also available in a software-only form.

Tip

If this is your first time making measurements with IRIS, please start with Conduct a Measurement, followed by the IRIS Plot section.

Tip

We’ve prepared a helpful Measurement Checklist to run through before and during conducting measurements on site.

Overview

• IRIS Overview
• Measurement Checklist

Hardware

• IRIS Kits
• Receiver
• Source
• Audio Interface
• Computer Requirements

Software Installation

• Installer File Structure
• Installation Procedure
• IRIS Licence Types
• Changelog

Conduct a Measurement

• 1. Conduct a Measurement
• 2. Receiver Setup
• 3. Source Setup
• 4. Measurement Controller Setup
• 5. Record Measurement

IRIS Plot

• IRIS Plot Overview
• IRIS Plot Controls
• IRIS Plot Details
• Select Ray
• Level Reference
• Directional Accuracy

Calibration

• Calibration
• Audio Device Calibration
• TetraMic Calibration
• System Calibration

Speech Intelligibility

• Speech Intelligibility
• Measuring STI with IRIS
• Evaluating Speech Intelligibility
• Preset Sound Levels
• Typical STI Applications
• Anechoic Vocal Efforts

Open Plan Offices

• Open Plan Offices
• Open Plan Office Measurement Procedure
• ISO 3382-3 Analysis
• VDI 2569 Analysis

Resources

• Audio Interface Configuration
• Import and Export
• Room Acoustic Parameters
• SketchUp Extension
• Source-Receiver Distance

Note

If you notice any typos or have any suggestions for how this material can be improved, please email Daniel.