Picture shows "Use SPDIF (
disabled)"
Maybe check "disallow PCM output in SPDIF mode"
In BS.Player: what is selected at "For AC3 decoding use" under
(rightclick >) Options > Preferences > Audio
(south-east corner of the window)
At the top of the same window maybe uncheck/deselect "Use Dedynamic filter".
Also: what "Output device" is selected under .... Audio > Output ?
Is AC3Filter actually used by BS.Player? To verify (with file loaded!):
(rightclick >) Options > Filters > Advanced ...
Already read this:
AC3Filter & SPDIF | AC3Filter ?
(= http://ac3filter.net/files/docs/ac3filter_1_30b/spdif_eng.html imho this is easier to read as it still has the paragraph-numbers )