Table 1.
Microphones.
| Model | Manufacturer | Technology | Size [mm] | SNR [dBA] | Sensitivity | AOP [dB SPL] |
|---|---|---|---|---|---|---|
| 7BB-35-3L0 [33] | Murata | Piezoelectric diaphragms | 35 Ø | - | - | - |
| EM272Z1 [34] | Primo | Electret Condenser | 10 Ø × 4.5 | 80 1 | −28 ±3 dBV 2,3 | 119 |
| MP23ABS1 [35] | STM | Analog MEMS | 3.5 × 2.65 × 0.98 | 64 1 | −38 ±1 dBV 3 | 130 |
| IMP34DT05 [36] | STM | Digital MEMS | 3 × 4 × 1 | 64 1 | −26 ±3 dBFS 4 | 122.5 |
1 A-weighted @ 1 KHz, 94 dB SPL.; 20 dB = 1 V/Pa.; 3 @ 1 KHz, 94 dB SPL.; 4 Decibels, with respect to digital full scale; more info in [37].