Details about the technology being used to replace Paul Walker with his brothers in Fast and Furious 7 have been revealed.

First Look at Paul Walker's Brothers in Character of Set of Film in Abu Dhabi

An inside source spoke to TMZ revealing how the differences between Walker and his younger brothers, Caleb and Cody, would be done away with using special processes and techniques. 

"The production team for 'FF7' will try something they have never done before ... merging archival audio of Walker's voice with his brothers' voices to fill in some gaps in the movie," the source said. "It will take both brothers, Caleb and Cody, to get everything to match up. Our sources say the production team tested the voice of each brother and learned that certain words sound better coming from one brother, and different ones from the other ... so they will combine them to help make the dialogue work."

Updates About Paul Walker End Scenes and Filming in Abu Dhabi 

The film's Facebook page made the announcement the official on April 15 stating that Walker's younger brothers would be filling in to help finish Walker's character, Brian O'Connor's story in the film:

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"We came together and all felt the only choice was to continue," the statement reads. "We believe our fans want that, and we believe Paul would want that too. Paul had already shot his dramatic scenes and most of his action for FAST & FURIOUS 7, and it's among the strongest work of his career."

Walker is the oldest of five siblings.

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Walker died on Nov. 30 in a car crash in Santa Clarita, Calif. He was the passenger in a car being driven by his friend, race car driver Roger Rodas, who also died in the accident. The speeding car hit a tree and instantly burst into flames, causing both the actor and Rodas to die on the spot. The actor was headed home after attending a charity event for his foundation, Reach Out Worldwide.

Walker is survived by his 15-year-old daughter, Meadow.

Watch a tribute to Walker from F&F here:

Tags: Fast and Furious 7 Paul Walker