Table 3.
Electroacoustic analysis of the PSAPs included in this study
| Device | Electroacoustic analysis result |
|||||
|---|---|---|---|---|---|---|
| OSPL90 Max (dB SPL) | Frequency range (Hz) | EIN (dB SPL) | THD (%) |
|||
| 500 Hz | 800 Hz | 1,600 Hz | ||||
| BeethoSOL (basic) | 115.9 | 293–8,030a) | 32.4a) | 2.4 | 4.5a) | 2.5 |
| EarJJang (basic) | 119.6 | 100–7,178 | 39.0a) | 0.4 | 0.2 | 2.5 |
| Geniesori2 (basic) | 123.7a) | 100–7,735 | 35.4a) | 0.2 | 0.1 | 0.1 |
| Hearing-Able (high-end) | 103.0 | 100–3,717a) | 26.7 | 0.9 | 1.0 | 0.1 |
| Olive Smart Ear (high-end) | 97.2 | 215–6,650 | 27.4 | 1.8 | 0.6 | 0.1 |
| SoriIn (high-end) | 109.6 | 100–7,024 | 26.9 | 0.7 | 0.5 | 0.1 |
PSAP, personal sound amplification product; OSPL90 Max, maximum output sound pressure level at 90 dB SPL; EIN, equivalent input noise; THD, total harmonic distortion.
a)
Indicates measured values that deviated from the tolerance defined in the Methods section.