Percentage of lost consonants maps directly to intelligibility quality thresholds

Evidence

The %ALcons is related to intelligibility as follows. If: %ALcons is less than 10%, the intelligibility will be very good; %ALcons is between 10% and 15%, the intelligibility will be acceptable; %ALcons is greater than 15%, the intelligibility will be poor. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2465

Categorization

• DEFINE: Defines the %ALcons metric and its intelligibility thresholds.
• corroborated: 2 independent passages support this claim — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2465
• XREF: connects to: Vowels dominate perceived loudness while consonants carry intelligibility — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1307; Intelligibility is measured by proportion of words heard correctly, not by perceived quality