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to snowflake
unfortunately I have discovered right now there is not file /etc/default/bluetooth on the XBMC. I was checking this on my Ubuntu 8.10 machine when I was writing my previous posting and the file exists there. So I have supposed it will be the same on the XBMC.
Any advices?
Petr
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So I guess the real question is what was\is Bahndit using..?
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So In thinking through this a little bit, with sacd what was the bandwith - Frequency it was High I know but it was decoded internally and passed through the 6 channel out on the player.
My LG BH200 outputs 7.1 channel uncompressed audio to my Denon 988 across 7 channels in lpcm and it decodes it.
Did we discuss what the limitation is of just taking the LPCM track and leaving it as is and muxing that with your h264, vc1 etc video file and trying it. We said the codec would not pass TrueHD right now but it does pass dts-hd but I have not tried DTS MA.
Dave
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As i know TODAY stands:
Windows:
- 24bit/192khz stereo LPCM sound through SPDIF works (more channel is not possible because of SPDIF bandwith limitation)
- 24bit/192khz 7.1 Multichannel LPCM sound through HDMI works. (Nvidia 8xxx, 9xxx integrated motherboards or AMD 4xxx dedicated video cards.)
- AC3, DTS 2ch lpcm works with most of the motherboards and soundcards.
- Dolby Digital HD and DTS HD Master audio bitstream pass over HDMI does not work yet. The first card will be Auzentech's new soundcard to make this happen, but only with certain closed source software players.
Linux:
- AC3, DTS, 2ch lpcm works with a lot of soundcards and integrated solutions through SPDIF and HDMI (over hdmi only with ALSA 1.018a)
- 24bit/192khz 7.1 multichannel lpcm over HDMI IS NOT POSSIBLE yet on any linux platform due to driver limitations. Maybe in the future we will have a chance to get a driver update from Nvidia ot AMD.
- Dolby Digital HD and DTS HD master audio bitstream will not be possible for a long long time on Linux platform due to content protection requirements.
So the only way to enjoy HD Ausio right now is getting a good 192khz, 24bit capable ANALOG card, decode the HD stream woth eac3 or ffmpeg and play it through multichannel analog output. For this you have to enable multichannel analog audio in the advancedsettings.xml in XBMC. I can help out with that if someone is interested.
Correct me if i am wrong with something
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Can we list all the formats with HD and BD and what passes and what does not.
This is what I see and I am talking on HDMI
you have
STD DD passes
STD DTS passes
DD plus passes
DD TrueHD - does not
DTS HD 1536 - It works on my system I get the 1536 bit rate in XBMC on playback.
DTS MA - have not tried
5.1, 6.1, 7.1 LPCM - does not pass
DTSHD to FLAC is passed as 2CH PCM. this is what I tried and it plays, I only tested the audio file renamed to .ts
* Now this is confusing to me, when I encoded this way did it take the 6CH and downmix to 2CH. Is that how eac is converting the files. Is there a way to check that FLAC file I encoded to see what information it really does contain. You know thinking about the FLAC file size actually ended up being smaller than the same DTS-HD Demux. *
DD TrueHD to FLAC - I have not tried this but I would think the same as the above with DTSHD.
Dave
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Dave,
use MediaInfo to make sure your .flac file is 6-ch and not 2-ch (I'm guessing it is 6-ch and alsa is only passing 2-ch out via HDMI).
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Check the eac3to thread on Doom9. To do some of the codecs you need 3rd party codecs, the internal codec is all I've used but I know it checks for others. First post in that thread speaks to this as to what is "best" and what is needed for what...