Just switched from PS3 to PS4. On first play I noticed the duty commencement sound plays through the speaker on the controller.
I play late at night at can't disturb others at home so turned down the volume of this on the PS4 options. However now, the audio for the duty commence does not play at all, it must solely play through the controller speaker.
I'd still like to be able to hear the audio alert, I often have my tablet fired up to check stuff while waiting for dutys and don't want to miss out due to not looking at the screen when it fires up.