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Table 1.
Frequency-specific repeatability and significance metrics for ILD measurements across angles. RMS error derived from test-retest measurements (ATF with head shell, n = 2). Effect-to-error ratios (Eff/Err) correspond to the relation of mean absolute ILD difference (Fig. 6, right panel) to RMS error.
| Frequency/ | RMS | Artificial | Artificial |
|---|---|---|---|
| Hz | error/ | head vs. | head vs. |
| /dB | ATF | ATF+head shell | |
| (Eff/Err) | (Eff/Err) | ||
| 125 | 0.2 | 2.6 | 2.2 |
| 160 | 0.1 | 3.6 | 3.0 |
| 200 | 0.1 | 5.1 | 4.3 |
| 250 | 0.1 | 6.4 | 4.3 |
| 315 | 0.1 | 8.8 | 4.4 |
| 400 | 0.2 | 7.7 | 3.4 |
| 500 | 0.2 | 10.4 | 4.1 |
| 630 | 0.2 | 10.4 | 4.4 |
| 800 | 0.2 | 8.7 | 4.0 |
| 1000 | 0.3 | 6.8 | 2.8 |
| 1250 | 0.3 | 5.0 | 2.0 |
| 1600 | 0.3 | 3.4 | 3.7 |
| 2000 | 0.4 | 3.5 | 4.0 |
| 2500 | 0.5 | 2.6 | 3.0 |
| 3150 | 0.7 | 2.6 | 1.3 |
| 4000 | 0.6 | 4.1 | 2.1 |
| 5000 | 0.4 | 5.7 | 3.6 |
| 6300 | 0.4 | 5.6 | 3.5 |
| 8000 | 0.7 | 3.1 | 2.1 |
| 10000 | 0.7 | 3.6 | 2.2 |
| Overall | 0.4 | 4.0 | 2.4 |
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