So weird... Need advise.

Shelby • ! My oldest is two born {1.17.14} & my youngest was born {2.16.16} blessed mommy of two beautiful baby boys!
So my two week old is not bothered at all with loud noises. It does not scare him, he does not budge he stays sound asleep. But as soon as it gets really quiet he is up and crying. I have a love / hate relationship with it bc I can get things done in the house and I have a very active loud two year old. Now the hate comes in at night. Bc I've always had to have it quiet when going to sleep. I just have a hard time when a tv is on or anything like that. Its just So weird with my first it was completely opposite he loved it to be quiet hated it to be loud. But anyways how do you think I can make it better for at night to make sure I get a goodnight sleep. I keep my tv on just so he has noise but it keeps me up. I'm running off of maybe 10 hours of sleep within the last couple days!