Technote 128: Speech Transmission Index Measurement with APx Audio Analyzers

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Size460.10 KB
Create DateDecember 3, 2015
Last UpdatedOctober 19, 2022

This TechNote discusses STI measurement, including the different methods identified in IEC 60268-16, a brief comparison of STI versus PESQ and/or POLQA perceptual audio testing, and finally a full discussion of STIPA method-based measurements using an APx500 Series audio analyzer and Audio Precision's STI measurement plug-in.

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TN128 Measuring STI with APx
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