It takes about a day to plug into LifeScore's model the dozens of individually recorded vocal and instrumental microphone tracks, or stems, that go into producing an original song.

将数十个单独录制的声乐和器乐麦克风音轨或主干输入LifeScore的模型中大约需要一天的时间，才能制作出一首原创歌曲。

OK, you're talking about a soundtrack added much later, which has, over time, become part of the film we know. But this recorded track didn't exist then.

好的。你说的是音轨的添加，这个的出现要晚得多。音轨已经变成我们现在所知电影的一部分。但是这个录制好的声道，当时是不存在的。