 |
| voice recorder: 41 phrases in 12 subjects |
| Aeronautics | 1 |
| Astronautics | 1 |
| Aviation | 19 |
| General | 1 |
| Household appliances | 1 |
| Information technology | 1 |
| Intelligence and security services | 4 |
| Meteorology | 1 |
| Military | 5 |
| Oil / petroleum | 1 |
| Security systems | 4 |
| Technology | 2 |