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Category: Mic Probe

Hearing Aid Verification Using Functional Gain – Part II

Wayne Staab 1 Comment AGC / Anechoic environment / Compression / Compression / Decibel / Deep Fit / Directional Microphone / Feedback / Free Field / Functional Gain / Hearing Testing / HINT / Insertion Gain / Knee / Linear amplification / Mic Probe / QuickSIN / Real-Ear / Sound Field / Sound Pressure Level (SPL) / SRT / Test Environment / Threshold Knee Control / Warble Tone / Word Recognition

Note:  This is a continuation of a previous blog: Hearing Aid Verification Using Functional Gain – Part I, which was last week’s blog.   Functional Gain in Hearing Aids   Functional Gain (FG) = Aided Threshold minus the Unaided Threshold (FG = A-U). Unaided thresholds are measured to tones presented through the loudspeaker(s). Various frequencies…

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Deep-Fitting Hearing Aid Real-Ear Measurements: Easy, Accurate, Consistent

Wayne Staab Leave a comment Coupler / Deep Fit / Hearing Aid Components / Hearing aids / KEMAR Manikin / Mic Probe / Occluded Ear Simulator / Real-Ear / RECD / Residual Volume / RIC / Venting / Zwislocki Coupler

Why Perform Real-ear Testing? The reason for hearing aid real-ear measurement is to determine the actual amplification of the hearing aid as worn on the head of the user. As is known (and reviewed in the 7/6/2011 blog), coupler measurements produce varying results, depending on how they are made. Real-ear results are not the same…

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