What are the supported audio formats that unity can handle?
Audio Clip
Audio Clips are audio data used by Audio Sources. Unity supports mono, stereo and multi (up to 8) channels audio assets. Unity supports importing the following audio file formats: .aif, .wav, .mp3, and .ogg, and the following tracker module file formats: .xm, .mod, .it, and .s3m. The tracker module assets works the same way as any other audio assets in Unity except waveform preview can be rendered to the asset import inspector
. http://unity3d.com/support/documentation/Manual/Sound.html