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2010-08-30, 02:00
So I'm having trouble with my Apple TV/XBMC/AV Receiver setup. Files encoded with either AC3 or DTS send the encoded audio stream directly to the AV receiver and it decodes it perfectly, showing "Dolby Digital" and "DTS" in its display.
However, movie files with AAC 5.1 audio do not. I don't get any sound out of my receiver until I select the "Downmix multichannel audio to stereo" box. I have to set my AV receiver to convert the (now downmixed) stereo signal back to either Pro Logic or Pro Logic II to get some sort of 5.1 audio.
Is there a way to fix this? I know my decoder probably can't handle or doesn't understand AAC 5.1, but maybe there's a way I can set XBMC to convert it to AC3 on the fly before passing it to the AVR.
The box is an STR-K1500 by Sony (the first revision, without HDMI). I'm passing audio to it from the Apple TV via optical.
Thanks!
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Thanx blakewry. This was driving me nuts and that fix is totally not intuitive. Glad to have it working again.
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JensGH
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If you get two random channels from a 5.1 aac please try the speaker configuration in audio-midi-setup ( utilities folder ). It is standard stereo and must set to 5.1 manually.
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In case anyone is wondering, the official Eden release still requires setting Optical/Coax instead of HDMI in order to make 5.1 AAC->AC3 transcoding work.
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And AAC passthrough isn't supported on OSX/IOS (dunno for other plattforms)...
AppleTV4/iPhone/iPod/iPad: HowTo find debug logs and everything else which the devs like so much:
click here
HowTo setup NFS for Kodi:
NFS (wiki)
HowTo configure avahi (zeroconf):
Avahi_Zeroconf (wiki)
READ THE IOS FAQ!:
iOS FAQ (wiki)
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I wish I could get this working 100%, the HTPC that my Apple TV 2 replaced could send any audio format with no hiccups.
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2012-05-14, 17:15
(This post was last modified: 2012-05-14, 17:20 by Kheiron2711.)
Gah!!!
Okay so it seems I have the same problem here but the fix doesn't seem to work for me.
I have the following set up in "System -> Audio Output"
Audio Output: Optical/Coax
Speaker Config: 5.1
Boost Volume level on Downmix: True
Dolby Digital (AC#) capable receiver: True
DTS capable receiver: True
Audio Output Device: Defaults
Passthrough Output Device: iec958
Currently all of the following still work: MP3 2.0 / AAC 2.0 / AC3 2.0
However, it doesn't seem to allow ANY 5.1 sound.
I've tried putting the AOD and POD to "hdmi" but then I get a "Failed to initial audio device" when I play ANY file.
I currently have XBMC 10.1 running on a ZBox ID41 connected to a receiver via HDMI.
If I change the output to Analog and the Speaker Config to 2.0, everything works but it's all being downmixed. Meh!!!
Sure, I can get the receiver to do a Pro-Logic 5.1 upmix but obviously that's not the same as having the real thing.
Any idea what I'm doing wrong?