Default [Q] Google Hangouts still makes sound on SilentMode

Hi all,

I hope someone has an answer for this. Searched the internet but couldnt find a real one.

When I use a Google Edition ROM and I set my phone in silent mode, google hangouts still vibrates and makes sound while listing to music. it also lowers the music sound. I wasnt able to turn this off in settings of google hangouts, only not to vibrate. but when listing music, it still makes sound notification eventhough i set all in silent mode.

anyone have a solution for this?

when i use HTC ROM on my M8, then it doesnt make sound anymore. Its like HTC turned it off

hope to hear!
thanks in advance!

Haru
HTC ONE M8

"THANKS" you too