The Australian of the Year wants the heinous crime of child sexual abuse addressed by Australia's leaders so it is obliterated from society and future generations are protected.

Ms Tame has on Wednesday delivered a follow up speech to remarks she made after accepting the top award in January.

She again detailed the assault she underwent as a high school student by a teacher, who was jailed for his crimes for less than three years.

The Tasmanian ended her speech with another battle cry to abuse survivors, and three key messages for change, including a national definition for consent.

"We need reform on a national scale, both in policy and education," Ms Tame told the National Press Club.

"To address these heinous crimes so they are no longer enabled to be perpetrated."

Her second message was for the Australian public.

"We need to be open, to embrace the conversation, new information, and take guidance from our experiences so we can inform change," Ms Tame said.

"So we can heal and prevent this happening to future generations."

Her third message was to survivors, encouraging them to speak up.

"We need to take this opportunity. We need to be bold and courageous. Recognise that we have a platform on which I stand with you in solidarity and support," she said.

"Share your truth. It is your power. One voice, your voice, and our collective voices can make a difference.

"We are on the precipice of a revolution whose call to action needs to be heard loud and clear."

Ms Tame acknowledged that details of her speech were confronting, but has challenged Australia to shift the shame to perpetrators.

"Do you know what's more confronting than hearing about it? Going through it," she said.

"There's a lot of things in this world that are ugly and dark.

"But we have to remember that we're all human beings. And that ugliness and darkness is unfortunately important because it helps inform how we move into the light."

Ms Tame's speech comes as the federal government faces intense pressure over a senior minister facing rape allegations, and a staffer saying she was assaulted at Parliament House.

She said "cover-up culture" and abuse of power were not unique to parliament.

"It happens everywhere."

The 26-year-old was awarded the top national honour in January, having already been named the Apple Isle's Australian of the Year.

Australian Associated Press