ok.. i can explain the process.. lol.. BUT requires some setting up
people saying "xmaconvert 2" are wrong.. lol.. and just using someone else's dead end advice.. go ahead and google for it ;-) bet you wont find it haha..
TOOLS NEEDED:
1. XB SDK
2. AUDACITY
3. mp3 or what ever
Tut:
1. you are gonna wanna copy xwmaencode.exe from with in the SDK install location (typically C:\Program Files (x86)\Microsoft Xbox 360 SDK\bin\win32) to "C:/Windows/System32"
This allows xwmaencoder to be ran from within the system (Command prompt) itself.. and makes life easier (REMEMBER: i said COPY not MOVE)
2. Install Audacity ( it is free ;-) )
3. Take your MP3 and load it up in audacity. Once it is loaded, Hit "FILE" then "EXPORT AUDIO" and under the drop menu for "SAVE AS TYPE:" you select "WAV (Microsoft) signed 16-bit PCM"
4. Once it is done go into the folder where you chose to save this new *.WAV and hold "SHIFT" and "RIGHT-CLICK" your mouse, and from within the context menu that pops up, select "OPEN COMMAND WINDOW HERE" (Win7+ only.. maybe earlier versions.. but if you dont have this option, then you will have to run a command prompt and navigate to selected location)
5. This is where i told you to copy xwmaencode to system32 comes into play: once in command prompt in the folder, type in
xwmaencode *.wav *.xma
the *'s are for what ever names you chose
6. your newly created .xma is done and proper format for xbox..
NOW.. since i assume you are trying to add sound/music to a skin correct?? the "ONLY" purpose converting a WAV to XMA would be to cut back on file size's.. but note that xuitool doesn't say it allows XMA to be added, you have to hit the "ALL FILES" option to show the xma's.. WAV's show up just fine as that is the "accepted" standard in xuitool i guess you can say lol.. and all of this isn't needed to add a song or what ever to a skin mate.. just FYI