How to get sound on .3g2 videos using a mac

.3g2 is a file format that several cell phones save video files as with the camcorder function. It records both video (usually with poor quality) and audio.

Problem, Audio is not playing on the computer, but the audio for the video file works on the phone. The video, but not the audio works in quicktime and vlc player. The itunes video player, (not quicktime) plays the files with the audio, but there is no converter in itunes.

When uploading the .3g2 videos to youtube, the sound turns into a distorted repetitive deep slapping noise with no coherent words.

Solution: You can use a converter, such as quicktime to change the format of the movie.
File- Save As- Format - choose "iPhone" ( "iPhone(Cellular)" will also work, but it may compress files larger than 2MB down and hurt the video quality. it will give you a small file. < or =2MB I think.) This will convert the .3g2 file to a .m4v that may be three times larger than the original file, but may have a slightly less pixelated picture (better quality) and

Original file = 5.9 MB 3gpp2/ .3g2 -sound not compatible with most media players (only itunes)
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Results when converted into the two available options in quicktime:

iphone (Cellular) = 2 MB 3gpp/ 3gp -sound seems to work on quicktime, vlc player and itunes- worsens already poor video quality - may only hurt video quality for files over 2 MB. Try this first if you have a small file to convert to save on space. I believe the "Cellular" means a 2MB limit so that the files can be sent via mms (cell to cell and cell to e-mail if the plan you have allows it)

iPhone = 16 MB = MPEG-4 Video file - Increases the size of the file (3 times in this case), but is very compatible with most media players. Video quality is slightly better.