Table 1: Classification of hyperacusis according to loudness discomfort levels [14].
| Hyperacusis classification | LDL level |
| None/negative | 95 dB or greater in all frequencies |
| Mild | 80-90 dB in 2 or more frequencies |
| Moderate | 65-75 dB in 2 or more frequencies |
| Severe | 60 dB or lower in 2 or more frequencies |