Table 2.
Microphones linearity measurements.
| Reference Signal Level | Tone at 1 kHz | |||||||
|---|---|---|---|---|---|---|---|---|
| Background Noise | 50 dB | 60 dB | 64 dB | 74 dB | 84 dB | 94 dB | 99.2 dB | |
| Gv1 | 57.2 | 58.3 | 63.0 | 66.2 | 75.7 | 85.6 | 95.6 | 98.2 |
| Gv2 | 57.0 | 57.5 | 61.7 | 64.9 | 74.3 | 84.2 | 94.2 | 97.2 |
| Sb1 | 34.6 | 49.7 | 60.1 | 64.1 | 74.1 | 84.2 | 94.1 | 98.4 |
| Sb2 | 36.0 | 49.5 | 60.0 | 64.0 | 74.0 | 84.0 | 94.0 | 97.8 |