Table A1
Prediction models for the mean levels of MNR based on two model forms after adding the four types of water sounds.
| Model form | Type of added water sound | MNR type | Prediction model | R 2 |
|---|---|---|---|---|
| Refined energy summation model | Fountain sound | Subjective loudness | MSlL = 0.134LT − 0.375T − 5.521 | 0.957 |
| Depression | MDeL = 0.133LT − 0.472T − 5.584 | 0.930 | ||
| Discomfort | MDcL = 0.122LT − 0.424T − 5.042 | 0.918 | ||
| Dissatisfaction | MDsL = 0.113LT − 0.370T − 4.542 | 0.915 | ||
| Stream sound | Subjective loudness | MSlL = 0.142LT − 0.261T − 5.894 | 0.938 | |
| Depression | MDeL = 0.136LT − 0.381T − 5.767 | 0.925 | ||
| Discomfort | MDcL = 0.135LT − 0.304T − 5.769 | 0.944 | ||
| Dissatisfaction | MDsL = 0.133LT − 0.303T − 5.715 | 0.949 | ||
| Water-drop sound | Subjective loudness | MSlL = 0.124LT − 0.429T − 5.070 | 0.917 | |
| Depression | MDeL = 0.118LT − 0.478T − 4.747 | 0.859 | ||
| Discomfort | MDcL = 0.107LT − 0.379T − 4.223 | 0.890 | ||
| Dissatisfaction | MDsL = 0.103LT − 0.374T − 4.015 | 0.933 | ||
| Waterfall sound | Subjective loudness | MSlL = 0.145LT − 0.208T − 5.871 | 0.959 | |
| Depression | MDeL = 0.138LT − 0.375T − 5.618 | 0.922 | ||
| Discomfort | MDcL = 0.134LT − 0.277T − 5.415 | 0.933 | ||
| Dissatisfaction | MDsL = 0.132LT − 0.296T − 5.313 | 0.910 | ||
| Modified energy difference model | Fountain sound | Subjective loudness | MSlL = 0.116LT − 0.030WSNR − 4.566 | 0.951 |
| Depression | MDeL = 0.110LT − 0.041WSNR − 4.388 | 0.944 | ||
| Discomfort | MDcL = 0.101LT − 0.035 WSNR − 3.963 | 0.916 | ||
| Dissatisfaction | MDsL = 0.094LT − 0.030WSNR − 3.601 | 0.910 | ||
| Stream sound | Subjective loudness | MSlL = 0.129LT − 0.027WSNR − 5.239 | 0.960 | |
| Depression | MDeL = 0.117LT − 0.039WSNR − 4.809 | 0.976 | ||
| Discomfort | MDcL = 0.119LT − 0.029WSNR − 5.000 | 0.961 | ||
| Dissatisfaction | MDsL = 0.118LT − 0.028WSNR − 4.949 | 0.963 | ||
| Water-drop sound | Subjective loudness | MSlL = 0.103LT − 0.038WSNR − 3.981 | 0.936 | |
| Depression | MDeL = 0.094LT − 0.046WSNR − 3.541 | 0.926 | ||
| Discomfort | MDcL = 0.088LT − 0.036WSNR − 3.266 | 0.936 | ||
| Dissatisfaction | MDsL = 0.084LT − 0.032WSNR − 3.066 | 0.939 | ||
| Waterfall sound | Subjective loudness | MSlL = 0.135LT − 0.015WSNR − 5.340 | 0.954 | |
| Depression | MDeL = 0.119LT − 0.034WSNR − 4.668 | 0.940 | ||
| Discomfort | MDcL = 0.120LT − 0.022WSNR − 4.709 | 0.930 | ||
| Dissatisfaction | MDsL = 0.117LT − 0.025WSNR − 4.560 | 0.911 |
Notes: MSlL: Mean subjective loudness level; MDeL: Mean depression level; MDcL: Mean discomfort level; MDsL: Mean dissatisfaction level; LT: Global LAeq of combined sound; T: Threshold, 1 when WSNR exceeds −3 dBA but is no greater than 6 dBA, and global LAeq levels are between 60 and 65 dBA, otherwise 0; WSNR: Difference between binaural LAeq of water sound and binaural LAeq of secondary radiation noise; R2: Coefficient of determination.
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