It seems like there was a problem with the audio conversion to .RAW.
I exported everything with uncompress , headerless , signed 16 bit .raw and that did not work apparently but now i first converted everything to 16 bit and mono and then exported the same way and it seems to work now.
Audacity is a strange program.
I can only export to .raw with " export multiple tracks"
If i do it with one track only i allways get a .aiff file.
Thanks for the help anyway watamacha.