Gable Tostee has told 60 Minutes Australia he was forced to restrain New Zealand woman Warriena Wright because she was attacking him and he "didn't know what else to do".
An Australian court last month found Gable Tostee not guilty of murder or manslaughter, after Ms Wright fell to her death from his 14th floor balcony.
The 30-year-old was accused of causing her death by threatening and intimidating her in the early hours of August 8, 2014, after the pair met through dating app Tinder.
In a 46-second clip released on social media to promote the upcoming 60 Minutes interview, Tostee discusses the events leading up to Ms Wright's death.
"I wanted it to stop," he says.
The clip shows him listening to an audio recording of Ms Wright screaming 'no' 33 times. When questioned about it, he says, "Yeah, she was certainly trying to make a lot of noise."
At one point, Tostee is asked whether he can "understand why many people would think [he's] a cold, heartless, cruel bastard".
"When you put it that way," he says, before the clip cuts off.
While Tostee was acquitted of all charges, questions still remain over his verbal abuse of Ms Wright before her death.
Tostee made an audio recording of the evening. On it, he can be heard to say: "You're lucky I haven't thrown you off the balcony you goddamn psycho little b****. Who the f*** do you think you are?".
The interview is scheduled to air on Channel 9 in Australia on November 13.