Controller - Doubleshock P4

[starlingarrow1]

Hi
Unfortunately I've found myself without my standard PS4 Controller.
However, have decided to try the off brand DoubleShock 4 Controller; generally working well so far although cannot get audio to output through TV - instead the default seems to be for the audio output to be via the gamepad and can't seem to change this in settings.
Has anyone else successfully troubleshooted this?