Insertion gain - PowerPoint PPT Presentation

FP35 Hearing Aid Analyzer

FP35 Hearing Aid Analyzer. For testing and verification of all types and sizes of hearing aids. Reasons to Test Hearing Aids. Test functionality : Is the hearing aid working properly? Does it produce too much noise? It is distorting the input signal?

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250. 500. 1000. 2000. 4000. 8000 Hz. Functional Gain: The way hearing aid gain was 1st verified. 0. A. A. 10. A. 10. 20. 15. A. A. A. 2 0. 30. 40. 3 0. 30. 30. 50. 60. Aided Speech output. 70. 80. 90. 100. LDL for speech. 110. 120. Figure 1. Then Came

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