How can I get back the sound of my sound less video which is captured with selfie stick?

[AC Question]

Actualy i recorded a video with my selfie stick yesterday and when I viewed it... there was no sound... I have Samsung galaxy grand prime... it happened because I connected selfie stick in headphone jack... but now please tell me how can I get back sound in video...

 

[hallux]

If there was no sound recorded there is no sound to "get back".