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