I remember an episode from a TV show with a Canadian cop doing this manually based on a recording. This memory from my childhood stuck with me, since I have see

I remember an episode from a TV show with a Canadian cop doing this manually based on a recording. This memory from my childhood stuck with me, since I have seen an interview with the actor saying that was one of the most ridiculous scripts they played—he was saying something like this is impossible. I guess he was wrong!