Is this bear attack audio real? (Timothy Treadwell voice comparison)

On Nov 6, 2012, an audio surfaced on YouTube claiming to be the final moments of Timothy Treadwell and his girlfriend Amie Huguenard. Despite garnering millions of views over the span of a decade, its authenticity has yet to be determined, and nobody has fessed up to making it. This video aims to compare the mysterious audio to clips from the documentary. Personally, I think it's a second-hand recording of the original, taken by one of the park rangers that had access to the tape before Jewel. But what do you think? This case has always intrigued me.