The ABC has continued its defence of itself with a speech by chair Justin Milne at the Australian Chamber of Commerce today.

It's Milne's first substantial comment on prolonged attacks on the broadcaster since he wrote an opinion piece for Fairfax six weeks ago about how much trust the ABC has among Australians. Echoing many of the same ideas, the speech today repeated again figures that 81 per cent of Australians say they trust the ABC.