No sound when typing text with <Improved Usibility for Impaired Persons>

Hello,
i am using Laptop Akoya MD 98920 Hardware 64-bit

Presently installed Win7 dual boot with oS 13.2 32-bit. ( win 7 with Oracle VM 64-bit)

Mid of December 2015 I installed oS Leap 42.1 to try out the system before replacing well running oS 13.2.
My problem: I don’t get the acustic signal when typing a text under

Improved Usibility for impaired persons
In oS 13..2 i am using /usr/share/sounds/pop.wav], sounds like < bipp > which is not in Leap 42.1.
But i can't get any of the offered KDE- signals into the system.Sound system is on, e.g. the <Noscript> acustic signal coming up when a webside is rejected([CODEchrome://noscript/skin/block.wav//CODE]

Some general remarks:

Additional repositories:
[Libdvdcss]]

packmam]
All updates have been installed, likewise by zypper and YaST 2 ( YaST does not accept vendor change and cleanup.
Internet connection o.k. I changed to <Networkmanager>
ssh connections to and from my other 2 laptops oK.
No problems when rebooting.

Would appriciate some advice

From Ebkr, sorry I missed to state that I installed oS Leap 42.1 into Oracle VM on Win 7.