Table 1.
Description of the training, standardized and experimental data sets used in this study. The table represents the number of calls for each call type included in the respective data set. Ncalls number of calls, NInd/groups number of individuals or groups from which the calls were emitted.
| Data set | Trill | Long whistle | Short whistle | Tsak | Zip | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ncalls | NInd/groups | Ncalls | NInd/groups | Ncalls | NInd/groups | Ncalls | NInd/groups | Ncalls | NInd/groups | |
| Training data set | ||||||||||
| Detection (2123 calls) | 326 | 12 | 159 | 4 | 1109 | 6 | 519 | 5 | 10 | 1a |
| Classification and clustering (2257 calls) | 302 | 52 | 186 | 24 | 1158 | 46 | 541 | 34 | 70 | 20 |
| Standardized data set | ||||||||||
| Good-quality (450 calls) | 50 | 42 | 50 | 22 | 150 | 40 | 150 | 29 | 50 | 19 |
| Clipped (80 calls) | 10 | 9 | 10 | 8 | 30 | 9 | 30 | 10 | – | – |
| Low-amplitude (80 calls) | 10 | 7 | 10 | 10 | 30 | 10 | 30 | 10 | – | – |
| Overlaid (80 calls) | 10 | 8 | 10 | 8 | 30 | 8 | 30 | 9 | – | – |
| Original experimental data set | ||||||||||
| M. murinus (3040 calls) | 76 | 7 | 157 | 5 | 2582 | 8 | 195 | 6 | 30 | 7 |
| M. lehilahytsara (1115 calls) | 48 | 5 | 526 | 5 | 240 | 1 | 193 | 3 | 108 | 4 |
aZips occur rarely in a sufficient signal-to-noise ratio. However, because they are highly stereotyped, this low number of Zips turned out to be sufficient to train the detector.