Notoriously noisy Maria Sharapova slapped down questions over her loud shrieking Wednesday after she was singled out for criticism during a push for quieter women's tennis at the Australian Open.

As Swiss great Martina Hingis weighed into the controversy, Sharapova, described by rival player Agnieszka Radwanska as "just too loud", told a questioner that that "no one important enough" had told her to be quiet.

"You've obviously asked me this question before," Sharapova said. "I've heard it a few times over my career. You've watched me grow up, you've watched me play tennis.

"I've been the same over the course of my career. No one important enough has told me to change or do something different.

"I've answered it many times before, I'm sure I'll answer it many more times ahead. I'm OK with that."