Fuji X-T1 Firmware V4.0 now available

[Lightmancer]

'cos people like a choice of sound...?

Ye cannae fight the laws of physics.

 

[KillRamsey]

in this case, why there are 3 available shutter sounds at the menu?

There are two things going on here, and I think we're collectively confused on which you mean.

1. The actual physical shutter makes a light "schlack" sound as it fires.
2. The camera can (I guess) make a digital noise out the little speaker it also uses when you play back video, to add some kind of beep / click / whatever sound, too.

It sounded like you didn't realize #1 was a permanent, physical thing, and thought there was only #2, which you'd be able to silence, leaving NO sound at all. If so, then Bill's right, it's physics. You can silence #2, easily, but when you're using the physical shutter as opposed to the utterly silent Electronic one, you're going to hear the little "schlack." For 100% silent shots, you'd have to use the electronic shutter, and watch out for Rolling Shutter effects.

 

[flysurfer]

Some people use the electronic shutter. Most of them do so with an added sound that signals that an exposure has been taken.