QtQuick 2.1 iOS SoundEffect muted doesn't work (Qt 5.2.1)

Hi,

When I try to set muted = false nothing happens. Sound still playing.
The same setting volume = 0.0

The error is on iOS ( iphone5 real device )
Works fine on Windows, OSX and Android.

Example:

SoundEffect

{ id: music source: "sounds/mysound.wav" muted: false }

//...
function turnOffMusic()

{ music.muted = true; }

//...