Table 1.
Experimental Design | In-the-Canal Output | |||||
---|---|---|---|---|---|---|
Signal | Gain | Output | Signal mean (SD) | Noise mean (SD) | SNR | |
Unaided | ||||||
30 | -- | 30 | 32.5 (1.6) | 26.5 (0.7) | 6.0 | |
40 | -- | 40 | 44.0 (1.6) | 26.4 (0.8) | 17.6 | |
50 | -- | 50 | 54.4 (1.4) | 26.6 (0.8) | 27.8 | |
60 | -- | 60 | 64.4 (1.5) | 26.6 (0.6) | 37.8 | |
70 | -- | 70 | 74.3 (2.2) | 26.4 (0.7) | 47.9 | |
Aided | ||||||
40 | 0 | 40 | 43.5 (2.0) | 31.9 (1.0) | 11.6 | |
40 | 10 | 50 | 55.2 (2.4) | 37.1 (1.5) | 18.1 | |
40 | 20 | 60 | 66.7 (2.1) | 47.0 (1.4) | 19.7 | |
40 | 30 | 70 | 77.3 (2.5) | 56.8 (2.6) | 20.5 |