Technote 128: Speech Transmission Index Measurement with APx Audio Analyzers

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.

TN128 Measuring STI with APx
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