[jitsi-dev] no audio out


I have installed windows 10 and wanted an encrypted VoIP instead of Skype but when I installed Jitsi everything works but the audio out. My friend can hear me but I cannot hear him. My mic is working fine as I can see the meter go up and down. I only have one option to put in audio out which is correct cause I am using an on-board sound. My sound on my PC is working perfect as I have checked all sound settings also Skype works fine so I know it is not my PC. Can you help with this issue please I would like to use your app, thanks.. My hardware is as follows
i7 4820kx79-up4 gigabyte16 gig ddr 3 1600and windows 10 is updated