Mac Boot Up Sound

Apple have recently brought back the Mac boot up sound.

If you want to re-enable it on your Mac, open up a Terminal and type:

sudo nvram StartupMute=%00
Hit Enter and then type your password.

 

If you want to turn it off. type the following into Terminal:

sudo nvram StartupMute=%01
Hit Enter and then type your password.

 

I am not sure but does it sound a bit different to before?