Advanced measures of bone anchored hearing aids: Do they correlate with perceptual judgments?

W.E. Hodgetts, G. Chen, V. Parsa


The ability of normal hearing linteners to differentiate the sound quality of different Bone-Anchored Hearing Aids's (BAHA) different processing condition was investigated. For the study, two objective measures of sound quality were obtained form the input and output BAHA recordings using MATLAB. A predictable advantage was found for the Compact with output compression as the input speech level increased. However, for the Compact, a consequence of output compression is reduced MPO.


Acoustic measuring instruments; Bone; Natural frequencies; Patient treatment; Potentiometers (electric measuring instruments); Speech; Telecommunication industry; Mean frequency response; Sound quality; Standard deviation; Visual analogue scale (VAS)

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