I was able to fix the problem:
1. checking the checkbox "Wave-Kopfdaten schreiben" (write wave header)
==> calling lame works, but II get static noise instead of music
2. check the checkbox "Bytefolge umkehren" (swap byte order)
==> I really get the music i expected
Would be nice, if the update to 8.10 won't break the settings, though
I was able to fix the problem:
1. checking the checkbox "Wave-Kopfdaten schreiben" (write wave header)
==> calling lame works, but II get static noise instead of music
2. check the checkbox "Bytefolge umkehren" (swap byte order)
==> I really get the music i expected
Would be nice, if the update to 8.10 won't break the settings, though