The vibration of the soft tissue because the inhaled air passes over it leads to noisily snoring.
And the higher level of loosen tissue that is there which vibrates, the heavier the snoring is.
DISCLAIMER: DMOZing.com is not affiliated in any way, shape, or form with DMOZ, AOL, Netscape, their management, entities or their official websites. Links to external websites on this website does not constitute endorsement.