video recorded without sound

[Android Central Question]

hey,
so I was in a music festival yesterday and I recorded videos at 3 pm, 6 pm and 9 pm and my videos from 3 and 6 pm has no sound at all(of couse the videos of my favourite bands) and other one from 9 pm works perfectly... can I fix these videos? what did happend between the videos that caused this? this one the first time that this happened and I have this phone for 2 years and been recording videos all week at this festival. I'd like to be naive and think somehow I can fix these videos. the recording works fine since then, I've tried it.
samsung galaxy a5 2016

 

[Mgh6x37]

Is it possible your phone was connected to a Bluetooth headset and it was attempting to use the microphone on that instead?

 

[siculus]

Mgh6x37 no it was not connected to anything, I was simply recording. it's very weird and my videos are useless without sound so that makes me devastated, any idea how I could get the sound back? is it possible at all?

 

[Mgh6x37]

Have you attempted playing them on anything other than your phone? Maybe there is something wrong with the app playing the videos and is not producing the audio. I would try playing it on your computer with VLC or something similar.