Android
Android Supported Media Formats : http://developer.android.com/guide/appendix/media-formats.html
iOS
The Basics: Audio Codecs, Supported Audio Formats, and Audio Sessions : http://developer.apple.com/library/ios/#documentation/AudioVideo/Conceptual/MultimediaPG/UsingAudio/UsingAudio.html
to sum up
Comparison Android and iOS supported audio formats, if need cross-platform audio data exchange, and only you can choose AAC and Linear PCM
AAC audio compression, audio data is smaller
Linear PCM audio is not compressed, better real-time, but larger audio data
Reproduced in: https: //www.cnblogs.com/dyingbleed/archive/2013/05/17/3083685.html