m4a

is there a difference between M4A audio files and AAC audio files or are they exactly the same thing but with a different file extension ? .M4A files typically contain audio only and are formatted as MPEG-4 Part 14 files ( .MP4 container). .AAC is not a container format and instead it is a raw MPEG-4 Part 3 bitstream with audio stream encoded. Note that M4A does not have to contain exactly AAC audio, there are other valid options as well. There are raw video and audio streams, this streams cannot be played directly on most video/audio player, they need to be "encapsulated" on a transport, a

As I understand it, Android will only play AAC format audio if it's encoded as MPEG-4 or 3GPP. I'm able to play AAC audio encoded as M4A when it's local to the app, but it fails when obtaining it from a server. The following works, as the m4a file is held locally in the res/raw directory. MediaPlayer mp = MediaPlayer.create(this, R.raw.*file*); mp.start(); The following doesn't work. (But does with MP3's). Uri uri = Uri.parse("http://*example.com*/blah.m4a"); MediaPlayer mp = MediaPlayer.create(this, uri); mp.start(); Can anyone shed any light on why it fails when the m4a audio file is not