Across
- 4. ear protection/ear gear
- 6. research/survey/investigation
- 10. compulsory
- 11. ear plugs
- 12. predict/foresee
- 13. db
- 14. volume
- 15. calculations
Down
- 1. hearing
- 2. to loose for good
- 3. violent
- 4. hearing aid
- 5. advice
- 7. music venues
- 8. present time
- 9. surprised