Open Access
Table 4
Trade-off ratios of MNR after adding four types of water sounds.
| MNR type |
||||
|---|---|---|---|---|
| Type of added water sound | Subjective loudness | Depression | Discomfort | Dissatisfaction |
| Fountain sound | 2.4 | 3.8 | 3.1 | 2.9 |
| Stream sound | 2.9 | 5.4 | 2.8 | 2.8 |
| Water-drop sound | 3.9 | 11.8 | 5.9 | 3.5 |
| Waterfall sound | 1.6 | 3.1 | 2.0 | 2.2 |
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