Following the Flashplayer version 27 update, you could be hearing from the speakers instead of the headset.
To correct the problem, reach Adobe Flash Player’s parameters by making a right click wherever in the interface of Via, then click on “settings…”
Click on the speaker icon and select the audio output that you want to hear VIA from.
Close the Flashplayer Setting window by clicking on the “X” and you will hear VIA from the selected device.
If not, feel free to contact us, we will gladly come to your help.