In the video, Cora can be seen talking to a doctor about how voices sound "squeaky" and are hard to interpret.
The doctor explains that as she has been deaf for so long, it will take her brain a while to begin to distinguish voices and sounds again.
Then, in a heartwarming moment, James speaks to his wife for the first time.
He asks: "How's my voice sound?
"What do you think?"
Beaming, Cora laughs and says it sounds "loud".
"It's amazing," she says before bursting into tears, overcome with joy at her ability to hear.