trouble with sound

[bernard]

hi, im having trouble with auto streams. when i play a mkv.file anime in english, it tends to play with a very loud buzz, thou i can still barely hear the sound of the movie. however, when i change it into japanese, it works perfectly fine. im sure it has nothing to do with the file, because my frd played the very same files in english and they worked fine. does anyone know how i could fix this problem?

bs player version 1.36
build 825,5. sep 2005

thanks a bunch!