REATPlus is a second generation software application for use by hearing protector professionals. REATPlus conducts for conducting Real Ear Attenuation at Threshold (REAT) audiometric measurement in accordance with the ANSI S12.6 and ANSI S3.19 standard test methods on earplugs, earmuffs and other hearing protection devices and systems. Plus, when used in conjunction with our Trident software, REATPlus also supports many other measurements commonly conducted in hearing protector test laboratories, including MIRE and fixture based testing of hearing protectors. REATPlus operates on National Instruments PXI-4461 and PXI-6220 series hardware. REATPlus is an automatic Bekesey audiometer program designed to provide stimulus and track responses for sound field hearing threshold determination for both occluded and unoccluded conditions. REATPlus also provides calibrated signal generation for MIRE and fixture based tests.



  • Tracks both unoccluded and occluded hearing thresholds
  • Provides both thresholds and trace history
  • Provides tools for sound field calibration
  • Automated attenuator control and gain adjustment
  • Data export into MSExcel for post-process analysis and reporting


REATPlus is the second generation of the REATMaster software originally developed by Nelson Acoustics Software for the NASA Glenn Research Center and in conjunction with technical input from NIOSH. REATPlus has been enhanced with additional features and is now supported by ViAcoustics for laboratories with an interest in hearing protector attenuation measurement.

REATPlus Features at a Glance:
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REATPlus – Configuration

REATPlus System Configuration   REATPlus provides flexible configuration options to support a variety of data acquisition systems and audiometric testing protocols.  The DAQ Setup tab provides options for viewing and adjusting system configuration settings. REATPlus configuration settings are stored in MSExcel workbooks that can be reloaded into REATPlus when the application is first started.  This […]

REATPlus – Stimulus Generation

REATPlus – Stimulus Generation REATPlus stimulus generation settings are also contained in the MSExcel configuration file for REATPlus and can be viewed on the Stimulus Setup Tab. REATPlus provides complete user control over Stimulus Setup parameters, such as Stimulus High Time Stimulus Low Time Method Rate (dB/sec) Initial Level and Next Band Offset Levels (SPL) […]

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REATPlus – Threshold Detection

REATPlus – Threshold Detection REATPlus uses the threshold detection settings from the configuration file to automatically determine hearing thresholds in both the Unoccluded and Occluded subject modes.  The stimulus is automatically presented as configured in the stimulus settings and the subject response state determines rather the next stimulus level increases, or decreases, for determination of hearing […]

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REATPlus – Fitting Noise and Fixture Testing Noise Source

Fitting Noise and Noise Source for Fixture Based Testing REATPlus provides pink, white and red noise signals for use as fitting noise for subjects, or as a noise source for fixture based testing according to ANSI S12.42.  Noise can be presented at a variety of levels to meet the current test needs.

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REATPlus – Excel Export

REATPlus MSExcel Export Feature REATPlus provides seamless data export to MSExcel based template files that users can customize to meet their own data analysis and reporting needs. Both Unoccluded and Occluded thresholds, as well as the standard deviations of the trace reversal mid points used to derive the threshold are exported. A file header section […]

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