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I am running under OSX 10.4.7 on ATV with the newest 9.11 release, and am unable to get any sound to play from AC3 encoded videos, particularly those who's only audio track is the AC3. Has anybody run into any similar problems? Will I need to downgrade the ATV OS?

Immediately after upgrading to 9.11, the audio in some of my videos stopped working. I just get silence, but the video plays without any other problems. I'm not sure what the format is, but I would imagine it's related to your problem.

shadd22 Wrote:I am running under OSX 10.4.7 on ATV with the newest 9.11 release, and am unable to get any sound to play from AC3 encoded videos, particularly those who's only audio track is the AC3. Has anybody run into any similar problems? Will I need to downgrade the ATV OS?

jtp8736 Wrote:Immediately after upgrading to 9.11, the audio in some of my videos stopped working. I just get silence, but the video plays without any other problems. I'm not sure what the format is, but I would imagine it's related to your problem.

I run ATV with digital out and see no problems on any files(dts,ac3 or mp3). post debug log please, maybe it will reveal something interesting.

No problem, here it is:
http://pastebin.com/fa50686c

I tried a few times with and without passthrough enabled, and successfully got DTS to play perfectly fine. The part I find interesting when trying AC3 Passthrough on and off is this error message in the log here:

Quote:22:03:29 T:43304960 M: 34660352 ERROR: CoreAudioRenderer::InitializeEncoded: Unable to identify suitable output format.

Any thoughts?

Edit: I should also mention using Downmix Multichannel Audio to Stereo does allow me to watch these files in Analogue mode, but it is noticeably un-synced just on these files.

I guess I should also mention trying to play any files encoded in 5.1 sound with the Downmix Multichannel Audio to Stereo turned off will render no sound on the Apple TV at all until a full reboot is done.

I am also having issues with 5.1. I have been using an XBOX with XBMC for years and decided to try it on an Apple TV. I upgraded my ATV to 3.0.1 and installed the latest version of XBMC.

I changed to audio to digital and turned off downmix multichannel audio to stereo. I rebooted the ATV and ran XBMC.

My receiver does not show 5.1 coming in and the sound is not correct. I lose the center channel, all I here is the surround audio coming from the front speakers.

When I reboot the ATV and the start-up animation plays, my receiver shows it is receiving 5.1 and you can definitely tell its Dolby Digital so the receiver is setup correctly.

The movies I am trying to play are direct rips from my own discs and only have 5.1 audio in them. They play perfect on the XBOX in 5.1 but not on the ATV.

I have posted a log file here

http://www.lammers.ca/downloads/xbmc.log

here are some details. The stream is found to be 5.1

20:14:44 T:43323904 M: 26165248 DEBUG: Open - av_find_stream_info finished
20:14:44 T:43323904 M: 26181632 INFO: ffmpeg[2951200]: Input #0, mpeg, from 'smb://SYNERGY/Videos/Movies/Animation/UP/VTS_01_2.VOB':
20:14:44 T:43323904 M: 26181632 INFO: ffmpeg[2951200]: Duration: 00:21:32.50, start: 77.984811, bitrate: 6645 kb/s
20:14:44 T:43323904 M: 26181632 INFO: ffmpeg[2951200]: Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x480 [PAR 32:27 DAR 16:9], 9800 kb/s, 59.94 tbr, 90k tbn, 59.94 tbc
20:14:44 T:43323904 M: 26181632 INFO: ffmpeg[2951200]: Stream #0.1[0x80]: Audio: ac3, 48000 Hz, 5.1, s16, 384 kb/s

Then there are some errors here

20:14:54 T:44225024 M: 18866176 NOTICE: Opening audio stream: 1 source: 256
20:14:54 T:44225024 M: 18866176 NOTICE: Finding audio codec for: 86020
20:14:54 T:44225024 M: 18853888 DEBUG: FactoryCodec - Audio: passthrough - Opening
20:14:54 T:44225024 M: 18853888 DEBUG: Loading: /mnt/Scratch/Users/frontrow/Applications/XBMC.app/Contents/Resources/XBMC/system/players/dvdplayer/liba52-x86-osx.so
20:14:54 T:44225024 M: 18841600 DEBUG: FactoryCodec - Audio: passthrough - Opened
20:14:54 T:44225024 M: 18841600 NOTICE: Creating audio thread
20:14:54 T:43586048 M: 18837504 DEBUG: thread start, auto delete: 0
20:14:54 T:43586048 M: 18837504 NOTICE: running thread: CDVDPlayerAudio:rocess()
20:14:54 T:43586048 M: 18837504 DEBUG: CDVDPlayerAudio - CDVDMsg::GENERAL_RESYNC(0.000000, 0)
20:14:54 T:43586048 M: 18837504 DEBUG: ParseFrame - source flags changed flags:17 sr:48000 br:384000
20:14:54 T:43586048 M: 18833408 NOTICE: Creating audio device with codec id: 86020, channels: 2, sample rate: 48000, pass-through
20:14:54 T:43586048 M: 18833408 DEBUG: Error: Requested setting (audiooutput.passthroughdevice) was not found. It must be case-sensitive
20:14:54 T:43586048 M: 18833408 INFO: AudioRendererFactory: not a explicit device, trying to autodetect.
20:14:54 T:43586048 M: 18833408 DEBUG: SetActiveDevice - SetActiveDevice from 1 to 4
20:14:54 T:43586048 M: 18833408 DEBUG: RemoveActiveDevice - Removing device 1
20:14:54 T:43586048 M: 18833408 DEBUG: CCoreAudioHardware::FindAudioDevice: Searching for device - Default.
20:14:54 T:43586048 M: 18399232 DEBUG: CCoreAudioDevice::GetTotalOutputChannels: Found 4 channels in 2 buffers
20:14:54 T:43586048 M: 18399232 DEBUG: CCoreAudioHardware::FindAudioDevice: Device[0x0102] - Name: 'Built-in Line Output', Total Ouput Channels: 4.
20:14:54 T:43586048 M: 18395136 DEBUG: CCoreAudioDevice::Close: Closed device 0x0102
20:14:54 T:43586048 M: 18395136 WARNING: CoreAudioRenderer::Initialize: Unable to locate configured device, falling-back to the system default.
20:14:54 T:43586048 M: 18395136 DEBUG: CCoreAudioStream::Open: Opened stream 0x0103.
20:14:54 T:43586048 M: 18366464 DEBUG: CoreAudioRenderer::InitializeEncoded: Found Output stream - id: 0x0103, Terminal Type: 0x0000
20:14:54 T:43586048 M: 18366464 DEBUG: CoreAudioRenderer::InitializeEncoded: Considering Physical Format: [lpcm] Mixable 2 Channel 16-bit Signed Integer (48000Hz)
20:14:54 T:43586048 M: 18358272 DEBUG: CoreAudioRenderer::InitializeEncoded: Considering Physical Format: [lpcm] Mixable 2 Channel 16-bit Signed Integer (44100Hz)
20:14:54 T:43586048 M: 18358272 DEBUG: CoreAudioRenderer::InitializeEncoded: Considering Physical Format: [lpcm] Mixable 2 Channel 20-bit Signed Integer (48000Hz)
20:14:54 T:43586048 M: 18358272 DEBUG: CoreAudioRenderer::InitializeEncoded: Considering Physical Format: [lpcm] Mixable 2 Channel 20-bit Signed Integer (44100Hz)
20:14:54 T:43586048 M: 18358272 DEBUG: CoreAudioRenderer::InitializeEncoded: Considering Physical Format: [lpcm] Mixable 2 Channel 24-bit Signed Integer (48000Hz)
20:14:54 T:43586048 M: 18358272 DEBUG: CoreAudioRenderer::InitializeEncoded: Considering Physical Format: [lpcm] Mixable 2 Channel 24-bit Signed Integer (44100Hz)
20:14:54 T:43586048 M: 18341888 DEBUG: CCoreAudioStream::Close: Closed stream 0x0103.
20:14:54 T:43586048 M: 18341888 DEBUG: CCoreAudioStream::Open: Opened stream 0x0104.
20:14:54 T:43586048 M: 18341888 DEBUG: CoreAudioRenderer::InitializeEncoded: Found Output stream - id: 0x0104, Terminal Type: 0x0000
20:14:54 T:43586048 M: 18333696 DEBUG: CoreAudioRenderer::InitializeEncoded: Considering Physical Format: [lpcm] Mixable 2 Channel 16-bit Signed Integer (48000Hz)
20:14:54 T:43586048 M: 18333696 DEBUG: CoreAudioRenderer::InitializeEncoded: Considering Physical Format: [lpcm] Mixable 2 Channel 16-bit Signed Integer (44100Hz)
20:14:54 T:43586048 M: 18333696 DEBUG: CCoreAudioStream::Close: Closed stream 0x0104.
20:14:54 T:43586048 M: 18333696 ERROR: CoreAudioRenderer::InitializeEncoded: Unable to identify suitable output format.

Does anyone have any thoughts as to what could be wrong? I am running on ATV OS 2.4, but I don't think that should make any difference, should it? Again, this just seems to be an issue with AC3 Passthrough, since anything DTS plays perfectly fine.

Edit: I am running on a Kenwood receiver, and get AC3 and DTS to play perfectly fine through my Macbook XBMC.

yeah i get the same ssue too, i'[m on atv 3.0, launcher 3.2.1 xbmc 911.

i bought this up in the other thread before, no luck with an answer however.

It was working perfect with older builds of xbmc.

i'm using optical out to my 5.1 decoder amp.

a solution would be good.

For me its seems to be a receiver compatibility issue. On my Sony STR-DE945 the pass through DD5.1 is not decoded properly. I get sound but its only surround sounds, no center, and the receiver does not indicate it is decoding DD5.1

I took my ATV to my other setup with a Pioneer Elite VX-95 receiver and it decodes the 5.1 just fine playing the exact same movie.

But it must be a software issue within XBMC because on my Sony, it does decode the 5.1 output when the ATV boots and presents that start-up animation and it also properly decodes 5.1 on the HD movies and TV shows I have purchased through the ATV and play with the ATV player.

If while playing a movie through XBMC on my Sony I power cycle the receiver while the movie is playing, sometime it will power up and indicate it is receiving DD5.1 but when this happens I get no sound at all.

Shawn

As others no surround with 9.11, the audio plays but some channels are missing, in my case center. It seems like it is only playing front L+R out of the 6 channels

Everyone having this problem should list their receiver.

I have a KEF Audio
As there are many people now with the same problem I would think this is a release problem as in 9.04 I had no issues at all

I tried 9.04 as well and had the same problem with my Sony STR-DE945

I tried a DTS movie last night and confirmed DTS pass through works just fine on my Sony.

Shawn

interceptor121 Wrote:As others no surround with 9.11, the audio plays but some channels are missing, in my case center. It seems like it is only playing front L+R out of the 6 channels

same here...pretty funny to watch a movie with the dialog missing, but everything else works...

receiver: yamaha rx-v750

randy.

I have opened another thread.
It seems that the issue is with AAC encoded audio while AC3 plays fine