This could happen only in cricket

Mahanama backs Harper in controversial decision | Cricket News | South Africa v England 2009/10 | Cricinfo.com:

"Smith was on 15 when he slashed at Ryan Sidebottom and England were convinced they heard an edge. Tony Hill, the on-field official, turned down the appeal and Andrew Strauss asked for a review. Harper upheld Hill's decision because he could not hear a sound on the replay, but it later emerged that he had not increased the volume setting on his monitor. This incensed Andy Flower, the England coach, but Mahanama said the right protocols were followed."

Smith went on to score 105, remember?