Why are my internet videos out of sync with the audio?

[AC Question]

why my internet videos are out of sync with the audio?

I recently bought a new phone with android 4.2 jellybean as an operating system and it seems that the videos on the youtube and vine and instagram apps are out of sync with the audio plus the video it self is stuttering and not smooth can someone help and thank you?

 

[spagman]

Re: why my internet videos are out of sync with the audio?

What model phone is it?
Do you have a good Wifi connection?

Is the phone new or second hand?

Sent from my SAMSUNG-SGH-I317