Agnieszka Radwanska will need to block out new 'queen of scream' Victoria Azarenka Full scream ahead: Victoria Azarenka is chasing her third Australian Open title. The biggest test for Agnieszka Radwanska in her Australian Open quarter-final against reigning champion Victoria Azarenka could be her ability to shut out her opponent's grunting, which has frustrated her in the past. Radwanska criticised grunting in the women's game after her 2012 Australian Open quarter final loss to Azarenka. The pair have shared their differences in the past with Radwanska admitting she was "angry" and had "lost a lot of respect" for Azarenka after they squared off at the Dubai Open in 2012, where Azarenka appeared to be limping between points and running freely during the points that saw her claim a straight sets victory. Sound barrier: Agnieszka Radwanska takes on Victoria Azarenka, and her grunting, in Wednesday's quarter-final. Russian Maria Sharapova has long been considered the "queen of scream" in women's tennis, but Fairfax Media sat inside Rod Laver Arena and recorded the decibel reading while Sharapova and Azarenka played during the Australian Open to find out who was the loudest. From the same seat inside Rod Laver Arena, about 30 metres from the middle of centre court, it was Azarenka who recorded the loudest grunt of the pair, hitting 90 decibels in her first-round match against Sweden's Johana Larsson. Sharapova's squeals did not register as loudly, reaching a peak of 86dB during her second-round match against Karin Knapp, which was played in 42.4C heat. 126 decibels: Pete Townshend of legendary band The Who making some noise. Azarenka has the wood over Radwanska having won her past seven matches against the 24-year-old. But it was their match in Doha two years ago that created the biggest headlines after Radwanska expressed her dismay over the way Azarenka carried herself on the court when she appeared to have faked an injury. Well, to be honest, I don't think this is worth a comment, but I think after this match . . . [I've] just lost a lot of respect. That's it," Radwanska said at the time. If you do this in the match, if anyone didn't see the match, I think it's just a quick look on YouTube and you'll know what was going on. Yeah, I was angry because I don't think this is the great image for the women's tennis, what was going on there. It came after Radwanska criticised Maria Sharapova for excessive grunting at the Australian Open in 2012. "Of course, everybody can make some noise," Radwanska said. This is tennis. But I think it's just too loud. I don't think it's very necessary to scream that loud. So if they [the WTA] want to do something, why not? Whether it's Azarenka's grunting or her tennis prowess, Radwanska has really struggled against the Belarusian. Since their controversial meeting in Doha two years ago, Radwanska hasn't been able to take a set off the world No.2. But Radwanska wouldn't add fuel to the fire when she was asked about her relationship with Azarenka before their quarter-final battle on Wednesday. "I think we just leave the thing behind us," Radwanska said. I think it was long time ago. We played so many times after that, as well. Azarenka extended her winning streak at Melbourne Park to 18 with her fourth-round victory over Sloane Stephens, another opponent who shares an unsavoury history with the reigning champion. But Radwanska remains focused on the battle on the court and admits she can't wait for her clash with Azarenka. "I think she's very consistent," Radwanska said of Azarenka. She's really playing on the high level all the time. She's not really an up-and-down player - always playing on a good level. The scream queens Victoria Azarenka (Belarus) Loudest grunt recorded during the first round versus Johanna Larsson at 90 decibels. Maria Sharapova (Russia) Loudest grunt recorded during the second round versus Karin Knapp at 86 decibels. How they compare The Tunguska Event (meteor strike): 300-315 decibels. Blue whale: 188 dB Fireworks: 145-150 dB Gunshots: 145-155 dB The Who concert: 126 dB Caution: 90-95 dB sustained exposure can cause permanent ear damage. Twitter @MichaelChammas