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Discussion Starter · #1 ·
Hardware used:

E6300 1.86Ghz

MSI P7NGM-Digital (GeForce 9300)

2GB DDR2-667 Micron RAM

X-Fi XtremeGamer connected to Onkyo HTS-R800 via TOSLINK S/PDIF cable to flexijack port

I am playing back 720p/1080p H.264/x.264 MKV files with GPU acceleration using the following (CPU usage is less than 10%):

1) Haali MKV Splitter

2) Cyberlink PowerDVD 7

3) WMP 11 in Vista64

However, I am not getting audio on several files.

I have analyzed the files using graphedit but they show no audio (of course because I don't have the right audio codecs installed).

MatroskaDiag says that some of these files use AAC, Vorbis, etc...

Which audio codecs do I need? I have tried ffdshow (without installing the video components) but had no luck. Also tried AC3 Filter with no luck at all.

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