When you use a /playsound command to play a sound at above 1 volume, it increases the range in which it can be heard; the sound volume itself gets clamped between 0 and 1, so it never plays louder than the actual audio file. However, the multiplication of the sound sliders happens before clamping, rather than after, making them useless with high-volume /playsound commands.

Steps to reproduce:

1. Turn the hostile mobs slider to 1%
2. /playsound entity.zombie.ambient hostile @s
3. Note how silent it sounds
4. /playsound entity.zombie.ambient hostile @s ~ ~ ~ 1000
5. Note how loud it is

Expected behavior:
The volume would be low due to low % setting.

Actual behavior:
It's just as loud as 100%.

To fix this, all that needs to be done is moving the clamping to before the slider value multiplication.

Fixing this fixes MC-46634 as well as the responsiveness for the ender dragon's wings flapping sound.