Crèdits

Crèdits de les figures i animacions:

1. http://www.physicsclassroom.com/Class/sound/soundtoc.html

2. http://www.jornada.unam.mx/2001/dic01/011217/cien-gandara.html

3. http://www.physicsclassroom.com/Class/sound/soundtoc.html

4. http://www.imagenysonido.com/audiofilia/a/

5. http://www.rockwool.it/sw49305.asp

6. http://build-a-recording-studio.com/

7. MONDRAGON, M.  http://www.xtec.es/centres/a8019411/caixa

8. MONDRAGON, M.  http://www.xtec.es/centres/a8019411/caixa

9. MONDRAGON, M.  http://www.xtec.es/centres/a8019411/caixa

10. MONDRAGON, M.  http://www.xtec.es/centres/a8019411/caixa

11. MONDRAGON, M.  http://www.xtec.es/centres/a8019411/caixa

12. http://www.provincia.pc.it/ambiente2002/ambiente.htm

13. http://www.fas.org/man/dod-101/sys/ac/f-14.htm

14. http://www.samasiku.com/castellano/menu/clarinete.asp

15. http://build-a-recording-studio.com/

16. http://www.coitt.es/acustica/acustica_body.htm

17. http://www.murcia.es/policialocal/cerca/ecologica/

Crèdits de la música:

OLDFIELD, M. The Songs of Distant Earth. http://tubular.net/midi/index.shtml

Figura 17