In audiology, the Articulation Index (AI) is a tool used to predict the amount of speech that is audible to a patient with a specific hearing loss. The AI reading for a given patient can range from zero to one, representing the proportion of the average speech signal that is audible. The closer the AI is to one, or 100 percent, the better the pers...
Found on
http://en.wikipedia.org/wiki/Articulation_Index
A quantitative measure of the intelligibility of speech; the percentage of speech items correctly perceived and recorded. An articulation index of 100% means that all speech can be understood, 0% means that no speech can be understood.Articulation Index is calculated from the 1/3 octave band levels between 200Hz and 6300Hz centre frequencies. Each ...
Found on
https://www.encyclo.co.uk/local/20687
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