I get a VERY load noise, like a radio out of tune, when i get a notifaction about a Viber message. This happens even when the headphone are not connected, i.e., comes out of the phone speaker. I don't get this with any other app, e.g., WhatsApp, Messages, etc.

When I uninstall the Sony Headphones Connect app the noise no longer occurs either in the headphone or on the phone speaker. Therefore, it does seem to be issue with the Sony app and not Viber. Also tried re-installing Viber but no difference.

Anybody ele got this or have any ideas how to solve?