why is audio and video not matching on my device?

[AC Question]

I have micromax canvas fire A096 and I have downloaded Snapchat but it is not working well.why video and audio being mismatched...plz help me to fix this problem

 

[B. Diddy]

Welcome to Android Central! Moved to the Snapchat forum. Does this only happen in the Snapchat app, or does it also happen in other video apps (like YouTube)?