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Dolby Digital 5.1 not working - XBMC 13.2 & 13.1 w/ passthrough enabled

OP rrussell50

19th August 2014, 01:20 AM   |  #1  
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I was unaware that the Fire TV XBMC did not play certain MP4 and MKV files with Dobly Digital.

I came across three different files one was a 2 were Mp4's and one was an Mkv that XBMC recognized as 5.1 files.

1 - I made sure that passthrough was enable to goto my receiver along with DTS enabled

2 - I was unable to find an updated media analyzer software to figure out what how the audio was encoded so I know what doesn't play on this system

3 - I then took the same files and I played them on my Midnight Mx2 w/ xbmc 13.1 and they both were identified and played properly in 5.1 on my receiver.

4 - I have used my Firetv with a ton of DTS and Dolby Digital files however these three for some reason do not work.



Does anyone know a good media analyzer software that will give me the correct information?


Also I'm assuming I have to wait for an updated Firetv firmware to fix this issue ?



I am running xbmc 13.2 not rooted but side loaded. Passtrhough is enabled correctly in the audio settings. XBMC recognizes the files as 5.1 but will not play that one my receiver.

Please let me know

thanks
19th August 2014, 05:29 PM   |  #2  
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I use MediaInfo which is updated regularly.
19th August 2014, 07:42 PM   |  #3  
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Quote:
Originally Posted by rrussell50

I was unaware that the Fire TV XBMC did not play certain MP4 and MKV files with Dobly Digital.

I came across three different files one was a 2 were Mp4's and one was an Mkv that XBMC recognized as 5.1 files.

1 - I made sure that passthrough was enable to goto my receiver along with DTS enabled

2 - I was unable to find an updated media analyzer software to figure out what how the audio was encoded so I know what doesn't play on this system

3 - I then took the same files and I played them on my Midnight Mx2 w/ xbmc 13.1 and they both were identified and played properly in 5.1 on my receiver.

4 - I have used my Firetv with a ton of DTS and Dolby Digital files however these three for some reason do not work.



Does anyone know a good media analyzer software that will give me the correct information?


Also I'm assuming I have to wait for an updated Firetv firmware to fix this issue ?



I am running xbmc 13.2 not rooted but side loaded. Passtrhough is enabled correctly in the audio settings. XBMC recognizes the files as 5.1 but will not play that one my receiver.

Please let me know

thanks

That's an interesting find. Do you happen to have a download link or torrent to one of those videos? I'd love to do some testing of my own.
19th August 2014, 08:12 PM   |  #4  
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Use MediaInfo as stated above by @bruce7373,
19th August 2014, 09:17 PM   |  #5  
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Quote:
Originally Posted by AFTVnews.com

That's an interesting find. Do you happen to have a download link or torrent to one of those videos? I'd love to do some testing of my own.

Thanks for the media info, I will post the findings from that audio after I use Mediainfo tonight for all three files
20th August 2014, 03:40 AM   |  #6  
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[U[/U]
Quote:
Originally Posted by rrussell50

Thanks for the media info, I will post the findings from that audio after I use Mediainfo tonight for all three files

FILE 1

D : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : A_AC3
Duration : 2h 42mn
Bit rate mode : Constant
Bit rate : 384 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 44.1 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : 9ms
Stream size : 447 MiB (15%)
Default : Yes
Forced : No



FILE 2

D : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 2h 16mn
Bit rate mode : Variable
Bit rate : 317 Kbps
Maximum bit rate : 430 Kbps
Channel(s) : 2 channels
Channel(s)_Original : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 309 MiB (14%)
Title : English - Xitz (StyLish Release)
Language : English
Encoded date : UTC 2012-10-29 17:33:06
Tagged date : UTC 2012-10-29 17:33:27


FILE 3
: 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 1h 30mn
Bit rate mode : Variable
Bit rate : 384 Kbps
Maximum bit rate : 426 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 244 MiB (16%)
Language : English
Encoded date : UTC 2013-03-25 11:23:22
Tagged date : UTC 2013-03-25 13:33:06

FILE 4

ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : HE-AAC / LC
Codec ID : A_AAC
Duration : 2h 21mn
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz / 24.0 KHz
Compression mode : Lossy
Delay relative to video : 31ms
Language : English
Default : No
Forced : No









All files play properly on my Midnight Mx2 running xbmc 13.1...... however the dolby digital does not work on the amazon fire tv running 13.1 or 13.2

Passthrough is enabled, and I am running a DTS receiver, I would love to hear some insight

thanks
21st August 2014, 01:04 AM   |  #7  
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I thought MP4 only supported 2 channel AAC, or am I misinformed?
24th August 2014, 02:00 PM   |  #8  
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Quote:
Originally Posted by bruce7373

I thought MP4 only supported 2 channel AAC, or am I misinformed?

any one have recommendations on what I should re-encode the tiles as? to get the right audio for the fire tv?
24th August 2014, 04:08 PM   |  #9  
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Try Handbrake. You can change the container from MP4 to MKV and transcode AAC to AC3.
25th August 2014, 04:50 AM   |  #10  
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I'm totally unable to play anything with Dolby Digital, DTS, etc. formats in XBMC 13.2 or 13.1. I am hooking up to an Onkyo receiver using HDMI and through that to a Sony TV via HDMI. Receiver shows 2 channel stereo only and never switches to DD or DTS (let alone HD formats).

If I start using just the Amazon interface, I can stream content from Amazon in DD mode just fine, so I know the basic connections work. Once I start XBMC, it works fine except all output is in 2 channel stereo.

Not only that, once I start XBMC, and then exit and go back to the Amazon interface, all programs that stream from Amazon fail.

Can anyone confirm this behavior?

Thanks in advance

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