2010-12-08, 15:04
CrystalP Wrote:Does the same thing happen with AC3 soundtracks of different bit rates and channel count?
For example the commentary 2.0 track, a 5.1 downsampled to 384kbps, a 5.1 640kbps converted from Bluray?
CrystalP - I've done some testing on different media files in my system. Note that in all cases I bitstreamed to the pre/pro using the WASAPI / ATI HDMI output. I also made sure that all media files with DD audio tracks worked (bitstreamed) in both MPC and WMP. Here is what I found (debug logs included):
1. DTS audio in no matter what format works.
2. DD audio did not work in XBMC Dharma Rc2. I tried the following DD
media files:
- 6 channel AC3, from VIDEO_TS.IFO on HDD
MediaInfo: http://pastebin.com/fRDWwNpK
Debug Log: http://pastebin.com/dkjQwdct
- 2 channel AC3, from dvd disk
MediaInfo: http://pastebin.com/a3GGgucQ
Debug Log: http://pastebin.com/LUufU20S
- 6 channel AC3, from MKV (converted bluray?)
MediaInfo: http://pastebin.com/wVzaq0PL
Debug Log: http://pastebin.com/TNNhkSaZ
- 6 channel AC3, from Xvid
MediaInfo: http://pastebin.com/S8nxTZ16
Debug Log: http://pastebin.com/U92MD0Ru
I get the same results whether I choose DirectSound or WASAPI. I do get sound if I choose analog, in which case I get multichannel PCM. This isn't an option for me as my pre/pro handles bitstreamed audio much better and produces a vastly different sound when bitstreamed - different sound levels, quality, etc. Any help with the logs would be appreciated. Is there a fundamental difference in audio rendering between Camelot and Dharma? Is dharma using different filters? If so then perhaps it's just a filter issue. I'm going to try loading the DX version of XBMC with DSPlayer again. I wasn't successful the first time but I didn't get a chance to experiment with the filter configuration. I have FFDSHOW 3562 installed and it is bitstreaming AC3, DTS, DTS-MA and TrueHD with no problems. I should be able to get DSPlayer working with it. Cheers.