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 Online User Manual
01 August 2019
We are very pleased to share our new web-based User Manual:
All the content from the older style PDF User Manual has been refined and repackaged for the new format, which renders clearly on desktop, laptop and mobile devices.
The new User Manual also includes several new sections which explain how to use the new features of IRIS 1.4 including measurements for STI and open plan offices.
From version 1.4, an offline version of the User Manual is also shipped with IRIS and installed locally with the software for cases when internet access is not available.
Older NewerWhat 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 operation and configuration of IRIS is effortless...
Sebastià V. Amengual Garí -
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