Despite the events of Star Trek: The Next Generation, you've got to assume that most of that seven-year mission wasn't doing battle with Klingons or Romulans, engaging in Holo adventures as Sherlock Holmes or pon-farring it up on pleasure planets. It was just flying through space, the steady hum of the ship the only constant. Now you can have a day's worth of that hum ... for free.
See, this is why I love fandom: Because someone took a sample of the NCC 1701-D's "travel hum" and looped it. And looped it. And looped it. All so you could, if you wanted, play 24 hours' worth of Enterprise noise and lull yourself into thinking that you're somewhere on board while writing a term paper, having dinner or doing anything that might require one or both of your hands.
If I were YouTube user crysknife007 I'd have buried a blast of red-alert klaxons at the 14-hour mark, just to keep folks on their toes. Heck, he might've, for all I know. I'm not gonna listen to the whole thing to find out.