Media sound gone!
Last weekend I went to a guitar playing competition and recorded most of the contestants. When I got home and tried to listen to them the sound was not there. I checked all my settings before I recorded to be sure things were like they should be. I have earlier videos that I checked and the sound was fine, however when I checked everything again yesterday the sound was gone from ALL the videos. It's not a speaker because other apps and games are fine. Please Help..
It could be the sound volume setting is too low. Check that. Ring tone, notification and media playback sounds are separate.
Also try copying a file to a PC and see if you can hear anything when you play it there.
I lost sound on videos on my droid razr. I searched Droidforums and found this input suggestion and it worked. (1) I plugged headphones into my phone jack, (2) heard music, (3) then unplugged my headphones. Result: sound came from my YouTube video on my phone. Try it.
I had a problem with media starting and stopping, and no sound from youtube, although I had sound from ringtones, so I knew the physical speaker worked. After some research, I did a factory reset. No luck. I uninstalled all apps. No luck. So I did a 5 minute battery pull. No luck. Finally, I did an overnight battery pull = remove battery for 8 hours. Woke up, and assembled the battery to phone. My homescreen had 2 old icons that were right on right before I deleted the apps the night before. Maybe there is a buffer stack overflow in the droid deletion routine? (question for the devs). And so to continue, I started up my tunein radio and the sound and program work perfectly! Long story short, just try taking the battery out for 8 hours to fix your phone! ;-)