XMA

• Extension: xma
• Company: Microsoft
• Samples: http://samples.mplayerhq.hu/game-formats/xma/
• http://en.wikipedia.org/wiki/XMA_(audio_format)

XMA is the audio container/codec format used on the Microsoft Xbox 360 console. It is thought to be based on WMA Pro.

Resources

• Discussion on HCS Forum
• "xmaencode.exe" from the Xbox 360 XDK provides encoding and (broken?) decoding.
• ToWav.exe is a (closed source) independent decoder.
  • It is packed with UPX. 'mudlord' has unpacked it and annotated the Delphi calls: towav_unpacked.rar
  • It might have just been linked to xmaencoder.lib from an old XDK...
• xma_parse exists to parse and repack the steam for files that ToWav breaks on.
• xma_setup.txt is an annotated disassembly of the xma_setup routine (from xmaencode?).