'Snowdome is a tale of two histories. It is the present. Tinnitus is the spirit of the age. William comes home, flicks the radio on, turns it up. His head is full of noise.' William and his friends live in Sydney, a mumbling city. They think about the future, and thinking hurts.
'It is the future. Sydney has been emptied out by economic forces and re-opened as a museum. The museum guide's task is to describe the city's history to tourists. He can no longer tell is that history is true or if he has made it up. He hears the firmness in his voice on the cassette tapes and he keeps his doubts to himself.' (Publisher's blurb)
Tinnitus is metaphorical rather than physiological in the novel.