Table 3. Detection accuracy using combined LFC, 16–28 Hz and 56–128 Hz amplitudes.
| τ = 0.25 s | τ = 0.5 s | τ = 0.75 s | Ndet | detection errors | ||||||||
| TPR | FPR | FP-rate (min−1) | TPR | FPR | FP-rate (min−1) | TPR | FPR | FP-rate (min−1) | Bias (ms) | TD (ms) | ||
| S1 | 0.75 | 0.26 | 2.5 | 0.92 | 0.10 | 0.9 | 0.97 | 0.05 | 0.4 | 309 | −47 | 265 |
| S2 | 0.50 | 0.36 | 2.7 | 0.69 | 0.12 | 0.9 | 0.74 | 0.05 | 0.4 | 264 | −117 | 362 |
| S3 | 0.75 | 0.25 | 3.1 | 0.91 | 0.08 | 1.0 | 0.96 | 0.03 | 0.4 | 318 | −63 | 271 |
True positive ratio (TPR), false positive ratio (FPR) and false positive rate (FP-rate) are given for three different tolerance values τ, 1.5 s of signal history and a delay of 0 s (cf. figure 5). bias: median detection error over all potentially correct detections (negative values indicate detections are positioned before real events). Ndet: number of detections; TD: temporal deviation, measured as the root mean squared error of (potentially) correct detections (see section ‘Evaluation of detections’).