Spoiler: Because it’s too loud.
I’ve discussed the insanity of The Loudness Wars many times in this space and it’s a battle I believe that needs to be fought. Here’s another take on the situation from The Aporetic:
Audio engineers manage this with something called “compression.” A compressor is a hardware or software device that sets a limit on how loud a piece of audio can go. It sets a top range, and when the audio signal exceeds that point, it turns it down. Imagine you are listening to a piece of music, and a really loud part is coming up, and you turn the volume knob down just as that part arrives. It’s like that, only automated. How does this make things louder?
It lets you set an overall high level, and squishes everything that was over that level down. So let’s imagine a piece of music. “Ten” is the maximum volume of the loudest parts. The singer is screaming: it’s really loud. And three is the level of the quietest parts. If you increase the volume level so that the quietest parts, formerly 3, are now at 10, and the compressor is squishing the loudest parts so they stay at ten, the result is a recording that comes to your ear at ten and only ten. The hushed and quiet passages are just as loud as the crescendo. Imagine that a whisper and a scream are the same volume. That’s modern music.
If you love music, keep reading.