| Position of Microphone (cm) | Signal at 1st Resonance (mV) | Signal at 2nd Resonance (mV) | Signal at 3rd Resonance (mV) | Signal at 4th Resonance (mV) |
| 2.5 | 4960 | 3800 | 2800 | 1920 |
| 7.5 | 3520 | 1120 | 1400 | 2320 |
| 12.5 | 3120 | 1760 | 3120 | 380 |
| 17.5 | 1080 | 3120 | 380 | 3360 |