Table 6
Effect of feature variations on MAEs and RMSEs in the ITD predictions of Model 3. The errors were calculated by evaluating the predictions of Model 3 using inter- and intra-individual variations when extracting the selected anthropometric and HA features from participant 18 (female) multiple times, see Table 3, in comparison to measurement-based ITD estimations. Deviations with respect to the mean MAEs and RMSEs, cf. Table 4, are indicated by Δμ, with percentage deviations provided in brackets.
| MAE/RMSE |
||||||
|---|---|---|---|---|---|---|
| Inter-individual extractions |
Intra-individual extractions |
|||||
| Dataset | μ | σ | Δμ (Δμ in %) | μ | σ | Δμ (Δμ in %) |
| HRTF | 16.7/21.8 | 1.8/2.6 | −1.3 (−7.2)/−0.6 (−2.7) | 16.1/21 | 2.4/4 | −1.9 (−10.3)/−1.4 (−6.3) |
| HARTF (front) | 26.8/34.1 | 7.1/7.7 | 8.5 (46.7)/11.5 (50.6) | 24.5/31.3 | 0.8/1.4 | 6.2 (34)/8.6 (38.1) |
| HARTF (rear) | 22.2/27.7 | 6/7.7 | 4.1 (22.9)/5.2 (22.8) | 19.6/24.6 | 0.4/0.6 | 1.6 (8.7)/2 (9.1) |
Note: MAEs and RMSEs are provided in μs. μ and σ represent mean and standard deviation, respectively.
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