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As mentioned before those series of amps 930, 940 & even the 1070 will not work for ac3 sound out of the atv2 due to way the amp handles the incoming signal. It's an apple hardware issue so there is no chance of an xbmc work around.
I can however confirm that the Sony str-db1080 does work with the ac3 atv2 sound output as this amp has an extra option in the settings and also that the same quality is MUCH better than the 940!
All the setting does is allow to change the PCM decoding to auto and the 1080 works, set it back to PCM and ac3 is silent again set PCM back to auto and it works again, simple.
Guys give up on trying to get the 930 or 940 to work for ac3 it just can't do it with the atv2!
The str-db1080 is a much better sounding amp and goes for around 100 bucks on eBay and yes I got mine for that delivered.
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Fergus
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Thanks mgc_bb. Not the news I was hoping for, but at least you've stopped me from spending any more weekends tinkering to no real effect!
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Fergus
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Weirder still though, I've just confirmed that the DD5.1 Holophone Podcast will play correctly through Frontrow. This suggests to me that the Apple Hardware issue must be a stumbling block rather than an outright killer! All academic in any case though, as it just wont play nicely with XBMC and my old Str-DB930.
Maybe the Audio Engine upgrade will behave differently and 'fluke' a fix for me; will just need to wait it out.
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Hmm there's lots of different settings to try here. If you're just running HDMI to your TV with no receiver, is there a recommended setting? I've noticed my new ATV2 is running at 100% CPU when playing video, hopefully messing with these settings can fix it.
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Sdpbc
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2012-03-17, 18:36
(This post was last modified: 2012-03-17, 18:58 by Sdpbc.)
Seems this thread was started before Eden. Just curious on the settings. I have a Marantz AV7005, the ATV2 is plugged into this via HDMI. A few Qs:
1. Do I need to plug the audio in via an optical cable to get 5.1 or just select HDMI in the Audio Output settings and DD/DTS capable receiver below that?
2. Do I need to adjust the settings on the Apple software at all? I currently have it set to 16 bit output and "Auto" for DD.
I can't seem to get 5.1 at all. If I use HDMI only, I seem to get PCM and it does 2/0/.0 which I assume means 2.0 downmix. Selecting the Optical only and adjusting the input signal on my processor to receive Digital audio from the Optical input shows PCM coming through but doesn't appear to tell me what it is (i.e., 5 channel or 2 channel).
Trying the new Harry Potter movie as the feed which I assume would be 5.1.
Edit: Looking at the manual for the AV7005, it would seem I'm receiving a 2CH PCM stream even when it just shows "PCM" per my comment above given the types of surround modes that are available to select (i.e., I can select Neural which shouldn't be available if this was a multi-ch PCM stream).
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just connect via hdmi, and set ac3/dts capable receiver. set atv2 setting to 16bit output ... that should do it...
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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Sdpbc
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2012-03-18, 14:19
(This post was last modified: 2012-03-18, 14:23 by Sdpbc.)
Get PCM 2.0 if I log in straight from HDMI as you mention above. Have tried about 15 different streamed movies at this point. Will try to see if I can go to that Youtube cut of the DolbyDigital stuff..
Edit: Just tried a Dolby Digital 5.1 clip from Youtube, and a DTS (Piano) intro that is supposed to be 5.1. Same result, PCM 2.0.
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post a log file. Have you set your speaker setup to 5.1 aswell in XBMC audio settings?
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)