Recent News
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Mini IRIS: A new simple and lightweight alternative
03 November 2023
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Sennheiser AMBEO VR Mic support in IRIS
09 September 2019
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IRIS at ICA 2019 in Aachen, Germany
07 September 2019
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Open Plan Office Module
01 August 2019
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New Online User Manual
01 August 2019
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New Release - IRIS 1.4
31 July 2019
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IRIS is put to the test
23 May 2017
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Hugh Vivian Taylor Award 2016
14 November 2016
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Release 1.1.1
30 November 2015
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New Release - IRIS 1.1
02 June 2015
New Release - IRIS 1.4
31 July 2019
We are thrilled to announce the release of IRIS version 1.4.
The new version includes several new capabilities and optional extras. Key features include:
- Speech Transmission Index (STI) measurements
- Automatic source-receiver distance measurements using a loopback connection
- ISO 3382-2 parameters (linearity of decay curves)
- Enhanced support for mono measurements, including the ability of perform a ‘System Calibration’ for measuring sound strength
- Export both single and 1/3 octave band parameters in spreadsheet format
IRIS 1.4 is a free update to all existing IRIS customers. If you are an existing IRIS user and haven’t received the update yet, please contact your distributor or daniel.protheroe@marshallday.co.nz
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What people are saying
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Marshall Day Software is like having an acoustic laboratory in the palm of your hand.
Associate Professor Yan Xiang, Tsinghua University -
The success of a musical performance depends on the sense of proximity of performer to listener. This sense is mediated largely by the directional properties of the reflected sound field.
Sir Harold Marshall -
I regard the acoustic designs of Marshall Day Acoustics to be amongst the finest and probably the most innovative in the world.
Dr Anders Gade, Technical University of Denmark