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Everyone
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Everyone
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About this app

SII Genius is a Speech Intelligibility Index calculator based on ANSI Standard S3.5. Users may enter any range of hearing thresholds in dB HL (with interpolation for absent values) to derive the Speech Intelligibility Index, or the percentage of speech that is audible to an individual.

SII Genius also allows input of environmental noise measurements to evaluate speech intelligibility in a given room or other environment. Noise levels may be entered as spectrum levels at 1/3 octave band center frequencies (ANSI standard default) or as 1/3 octave band levels, with automatic conversion to spectrum levels. Interpolation is applied when full 1/3 octave data are not available.

Entered data may be saved for later recall (patient name or other user-defined label), allowing efficient reuse of hearing threshold data without repeated entry.
Updated on
Apr 7, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What’s new

Initial release
Content rating
Everyone
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App support

Phone number
+16516284327
About the developer
Sentient Healthcare, Inc.
jcoverstone@sentienthealthcare.com
929 Old Highway 8 NW Ste 200 Saint Paul, MN 55112-2777 United States
+1 651-628-4327