Table 1 The mean microphone level outputs (dB) of the FPM and Hy-M30 microphone
From: Feasible pickup from intact ossicular chain with floating piezoelectric microphone
| Frequency(kHz) | 0.25 | 0.50 | 1.0 | 1.5 | 2.0 | 3.0 | 4.0 | 6.0 | 8.0 |
|---|---|---|---|---|---|---|---|---|---|
| FPM in vitro* |
-18.62 (0.4763) |
-19.94 (0.7088) |
-16.47 (0.5252) |
-16.28 (0.4966) |
-14.14 (0.5598) |
-16.32 (0.6594) |
-22.87 (0.6118) |
-26.55 (0.7719) |
-22.82 (0.8877) |
| FPM on malleus |
-49.2 0 (1.81) |
-50.77 (1.749) |
-35.83 (2.208) |
-25.87 (1.517) |
-16.59 (1.836) |
-16.45 (1.223) |
-23.67 (1.894) |
-28.86 (1.146) |
-22.42 (1.868) |
| FPM in tympanic cavity |
-52.21 (0.7639) |
-52.51 (0.4267) |
-53.15 (0.6175) |
-50.26 (0.1644) |
-44.96 (0.5878) |
-42.77 (0.6612) |
-39.60 (0.3746) |
-40.32 (0.2733) |
-42.23 (0.6295) |
| Hy-M30 Mic |
-16.36 (0.3785) |
-11.31 (0.4782) |
-14.19 (0.2405) |
-11.39 (0.4088) |
-7.161 (0.1995) |
-15.46 (0.3006) |
-8.957 (0.3065) |
-21.58 (0.3694) |
-23.26 (0.5330) |
