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The Performance/Intensity Function: An Underused Resource : Ear …
https://journals.lww.com/ear-hearing/Abstract/2008/08000/The_Performance_Intensity_Function__An_Underused.1.aspx#:~:text=The%20PI%20function%20shows%20the%20cumulative%20distribution%20of,three%20parameters%20representing%20threshold%2C%20slope%2C%20and%20maximum%20performance.
Performance-intensity functions for normal-hearing …
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2800171/
The Computer Aided Speech Perception Assessment (CASPA) is a clinical measure of speech recognition that uses ten-item, isophonemic word lists to derive performance-intensity (PI) functions for adult listeners. Because CASPA was developed for adults, the ability to obtain PI functions in children has not been directly evaluated.
The performance/intensity function: an underused resource
https://pubmed.ncbi.nlm.nih.gov/18469711/
The PI function describes recognition probability as a function of average speech amplitude. In effect, it shows the cumulative distribution of useful speech information across the amplitude domain, as speech rises from inaudibility to full audibility.
Use of Performance-Intensity Functions for Diagnosis ...
https://pubs.asha.org/doi/10.1044/jshd.4203.408
Performance-intensity (PI) functions for phonetically balanced (PB) word lists were obtained for a group of normal listeners (27 ears), and for two groups of patients with cochlear (89 ears) and retrocochlear disorders (eight ears). Listeners with normal hearing or cochlear disorders exhibited mild to moderate reductions in discrimination score as the speech …
Back to Basics: Slope of PI Function Is Not 10%-per-dB in ...
https://hearingreview.com/hearing-loss/patient-care/back-to-basics-slope-of-pi-function-is-not-10-per-db-in-noise-for-all-noises-and-for-all-patients
A Performance-Intensity (PI) function showing changes in WRS (%) as a function of SNR (dB). Such curves can also be obtained in quiet using dB SL as the x-axis. The middle region is where the slope is the steepest with potentially the greatest WRS improvement for a …
The Performance/Intensity Function: An Underused …
https://www.researchgate.net/publication/5266160_The_PerformanceIntensity_Function_An_Underused_Resource
The PI function describes recognition probability as a function of average speech amplitude.
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