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) |