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Iris

IRIS is an affordable software and hardware 3D impulse response measurement system

The system consists of:

  • IRIS Software and USB dongle
  • Core Sound TetraMic
  • MOTU 4pre USB audio interface
  • Custom phantom power and microphone cable adapters
  • 30 metre CAT5E STP microphone array extension cable
  • Pelican Storm case with custom foam cut-out

(Note: The user must provide their own source loudspeaker which fulfils the directivity requirements as specified by ISO 3382:2009-1.)

 

  • 3D colour-coded representation of sound rays
  • Length indicates relative sound intensity level, angle is the ray direction, and colour represents time of arrival
  • Separate music and speech arrival time categories
  • Interactive 3D rotation and zoom
  • Dynamic range and time resolution adjustment
  • Specific angle and level information for individual rays for detailed analysis
  • Broadband and octave band filtered views

  • Traditional omnidirectional waveform views
  • Dynamic interaction between the IRIS plot and waveform view – rays selected in one view are highlighted in the other view
  • Automatic detection of onset time with manual adjustment

  • Simple and user friendly setup and measurement process.
  • All data is gathered in a single exponential sine sweep recording.
  • Default settings suitable for most measurement situations with advanced options available. 

  • Standard acoustic parameters are displayed in table and graph form
  • EDT, T20, T30, D50, C80, Ts calculated in octave bands in accordance with ISO 3382-1:2009
  • Tables can be exported to csv
  • LF – coming soon.
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