Examples of use of 81db
1. Second in the grunt rankings is Serena Williams, at 88 decibels, followed by her sister Venus (85db), fellow American Lindsay Davenport (84db) and Russian Elena Bovina (81db). By contrast Tim Henman registers 61.6 decibels, while even the noise of a rock band (80db) and a Harley Davidson (85db) would be drowned out by some of the players.