The Audio is to slow

[Quickjumpy]

Hello

I have a Problem. I Play Team Fortress 2 and this is a Scource game as far as i know.
I tryed to make a Audio File for it, but it seems that i do something Wrong.
Because a 4:30 MP3 turns in the end as a 16:45 long WAV. Also it sound very streched and slow. Speeding up doesnt help.

This is what i did (Im using AudiaCity)
1) i switched to 11025 HZ (at this point, the file became 16 minutes long)
2) Splitted the Track
3) deleted the 2 Music thing there (so there is only 1 file)
4) Made this 1 File to "Mono"
5) Changed it to 16-Bit
6) saved as .wav .

As you see, i did it exactly as it says in the tutorital. So what is the Problem?
The MP3 File is 32-Bit (float) and 44100 HZ.

Thanks for you help.

[Renegade]

step #1: you need to change the rate through the drop-down box labeled "Project Rate"
http://hldj.org/manual/tips_tricks.html#hlaudioformat