Open Access
Table 3.
Summary of a GLM assessing the effects loudness, application type, and device ID on differences in SPL measurements from a standard SLM for measuring the loudness of white noise.
| Term | Estimate | Std. Error | t value | Pr(> |t|) |
|---|---|---|---|---|
| (Intercept) | −9.80536 | 2.04202 | −4.802 | 7.58e−06 |
| Loudness | 0.13898 | 0.02529 | 5.496 | 4.85e−07 |
| Keuwlsoft | 1.73103 | 2.89683 | 0.598 | 0.551886 |
| KTW | 12.55968 | 2.91559 | 4.308 | 4.81e−05 |
| Device | 5.51005 | 2.88785 | 1.908 | 0.060118 |
| Loudness × Keuwlsoft | −0.01879 | 0.03574 | −0.526 | 0.600531 |
| Loudness × KTW | −0.17830 | 0.03596 | −4.958 | 4.14e−06 |
| Loudness × Device | −0.07331 | 0.03576 | −2.050 | 0.043770 |
| Keuwlsoft × Device | −2.62062 | 4.09674 | −0.640 | 0.524277 |
| KTW × Device | −13.52402 | 4.16967 | −3.243 | 0.001748 |
| Loudness × Keuwlsoft × Device | 0.02902 | 0.05055 | 0.574 | 0.567582 |
| Loudness × KTW × Device | 0.18870 | 0.05162 | 3.656 | 0.000466 |
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