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Table 3.
Statistic evaluation of six different (multiple) linear regression models based on the psychoacoustic parameters sharpness, tonality and roughness for the preference-equivalent level Δ Lpref. Given are R2, F-test and p-value of the linear regression.
| Psychoacoustic parameters | Model | R2 | F-test | p-value |
|---|---|---|---|---|
| Sharpness | Δ Lpref = 17.6 − 12.6 S | 0.539 | 11.7 | 0.0066 |
| Tonality | Δ Lpref = 2.8 − 10.6 T | 0.561 | 12.8 | 0.0050 |
| Roughness | Δ Lpref = 1.2 − 17.7 R | 0.311 | 4.5 | 0.0597 |
| Sharpness & Tonality | Δ Lpref = 11.8 − 7.0 S − 6.5 T | 0.641 | 8.0 | 0.0100 |
| Tonality & Roughness | Δ Lpref = 3.2 − 9.0 T − 6.3 R | 0.589 | 6.4 | 0.0184 |
| Sharpness & Roughness | Δ Lpref = 19.6 − 12.1 S − 16.4 R | 0.803 | 18.3 | 0.0007 |
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