 |
| noise measurements: 60 phrases in 16 subjects |
| Astronautics | 1 |
| Automated equipment | 1 |
| Aviation | 14 |
| Ecology | 13 |
| Geophysics | 1 |
| Household appliances | 1 |
| Makarov | 1 |
| Mass media | 2 |
| Mathematics | 3 |
| Military | 1 |
| Natural resourses and wildlife conservation | 8 |
| Oil / petroleum | 1 |
| Programming | 3 |
| Radio | 1 |
| Technology | 6 |
| Telecommunications | 3 |