1. Vomiting

2. Microphone feedback

3. Many crying babies

4. Train wheels scraping and squeaking on tracks

5. Seesaw squeaking

6. A violin being played badly

7. Farting

8. One baby crying

9. An argument on a TV soap opera

10. Electrical mains humming

11. Tasmanian devil

12. Cast spitting and howling

13. Coughing

14. Mobile ringtones

15. Creaky door

16. Fingernails scraping down on a blackboard

17. Sniffing

18. Dogs barking

19. Polystrene squeak

20. Dentist's drill