Currently Being ModeratedAug 17, 2011 11:07 AM (in response to MSM126)
Update: I spent quite a bit of time with AppleCare today. Did an SMC reset, and tried a few other changes to resolve the issue; none of which worked. I'm waiting to hear back from next level of support.
Can anyone confirm that they are successfully getting Dolby Digital 5.1 audio out through HDMI on a 2011 Mac mini?
Currently Being ModeratedAug 18, 2011 12:11 PM (in response to MSM126)
I've yet to find anyone here or in other forums that is successfully getting pass through of multichannel audio (AC3 dolby digital and/or DTS) out of the HDMI port on 2011 Mac mini.
My AppleCare case was escalated to the next level of support, and I spent some time with them trying to get audio to work using Audio MIDI Setup and some other steps. None worked.
Please reply if you're successfully getting pass through of multichannel audio with your 2011 Mini.
Currently Being ModeratedAug 20, 2011 2:57 AM (in response to MSM126)
Try setting in Audio Midi Setup under the HDMI
selection, set audio to 2 channel, 24 bit. Do not
set to one of the multichannel modes. Dolby and DTS
are "encoded" streams and not independent channels.
When you set to multichannel in Midi Setup, the source
is expected to be multichannel PCM. Encoded signals
will not pass in this case.
Currently Being ModeratedAug 20, 2011 2:50 PM (in response to MSM126)
I'm not getting 5.1 audio. The video is fine
As a test (to eliminate some of the unknowns) try to play a DVD movie.
If you get audio with a standard DVD, we can look at software issues.
Currently Being ModeratedAug 20, 2011 8:37 PM (in response to Ziatron)
Ziatron, I assume you're referring to playing from a DVD through the receiver to test audio? If so, the receiver properly handles Dolby Digital, DTS, TruHD, etc all fine through the bluray player, and Dolby Digital fine from Directv.
Woodmeister, Apple support took me through all of the Audio Midi setup questions, and it is set correctly.
Thank you both for the suggestions.
Currently Being ModeratedAug 20, 2011 8:54 PM (in response to woodmeister50)
I just setup the Mac mini to multichannel 8bit not sure as to what kHz just took the lowest.
Under 8 channel I was getting to choose option as to what speaker setup I have.
I selected 5.1 and tested the speakers one at a time. The Mac sends test signal to each speakers and it passes!
Any comments? Suggestions?
Currently Being ModeratedAug 23, 2011 11:18 AM (in response to woodmeister50)
Woodmeister50, setting Audio Midi Setup to 2 Channel, 24 bit just results in a 2 channel stereo at the receiver -- at least in my case and according to what I was told by Apple Support.
I've spent a couple of weeks on this with Apple support (Case 239621624), and after multiple escalations of the issue up to engineering, the answer I received is that what I want to do is not supported by Apple software. Here's a summary of what I want to do:
- Connect my 2011 i5 Mac mini through HDMI to my Pioneer SC-05 stereo receiver
- Have the Dolby Digital and DTS audio processed / managed by my the receiver
- Use Audio Midi Setup to set audio to 8 channel, 24 bit
- Click configure speakers option in Audio Midi Setup, and set to 5.1 audio
The Apple recommendation works fine with Quicktime, VLC, DVD playback. Unfortunately, it does not work with Plex as simply launching Plex causes the audio settings to immediately default back to 2 channel stereo.
Currently Being ModeratedAug 24, 2011 12:12 PM (in response to MSM126)
Confirmed today with both of the new i5 Mac mini's that even the toslink setup that used to work with the 2007 mini, no longer works to get encoded Dolby Digital / DTS signal to the receiver. In other words, I reverted back to the same setup I had with the 2007 Mac mini:
- Video through HDMI
- Audio through toslink to optical adapter to the stereo receiver
The toslink connection now results in the same behavior as HDMI -- only way I can get multichannel audio to the receiver is to set Audio Midi Setup to 8 channel, 24 bit with speaker configuration set to 5.1. As with HDMI audio, this works fine for VLC, Quicktime and DVD player; but as soon as Plex is launch audio settings revert back to 2 channel stereo.
It seems like multichannel audio out is #$%Q with OS X Lion and at least the mini's I'm working with. The 2007 mini running Snow Leopard continues to work flawlessly. Hopefully a software update or 3rd party tool will fix this.
BTW, Apple did suggest I try Perian and Soundflower ... neither worked for my setups.
Currently Being ModeratedAug 25, 2011 3:15 AM (in response to MSM126)
Lion is not the issue, it is the new 2011 Mac Minis that are the issue.
I am running just fine with Lion 10.7.1 on my 2010 MacMini.
I get Dolby and DTS passed through to my receiver from
all app sources (iTunes,PLEX,XBMC,VLC) without the use of
any third party software. All the audio is send over HDMI
with video to my receiver.
I'm not defending Lion, as I had my issues with it which
have been solved, but that the new Mini's weren't ready for
Currently Being ModeratedAug 28, 2011 12:15 AM (in response to MSM126)
Hi All, I have the new 2011 macmini to replace the 2010 version. I had issues with HDMI sound as well, but it turns out the issue lies in having AND the HDMI cable in AND a toslink/headphones cable.
In the 2010 version you could select the Sound output to go via HDMI or Analog.
In the 2011 version (if you have plugged-in a cable in the headphones) the HDMI sound output is impossible to choose. It is only selectable when you have unplugged the headphones cable. So what is the use of the Output settings if you cannot select anything if you have more than 1 output.....
The guy form AppleCare told me this is a firmware bug that 'should' be solved.....
When I unplug the headphones and start a movie in Movist, I have DTS and DD. With VLC it does not work, but that has to do with the upgrade to Lion (see the VLC forum).
I assume the firmware upgrade will come soon otherwise I will be VERY dissapointed in Apple quality this time and will certainly stop buying new Apple gadgets when they come out. As this was the reason why I switched from Microsoft to Apple......
Currently Being ModeratedAug 28, 2011 3:01 AM (in response to remkofromnl)
remkofromnl, this sounds very familiar. I do recall, even
with my 2010 Mini, earlier this year trying to debug some
audio issues, I had found that if you plug in an optical
cable, it "overrides" the HDMI, at least on my Mini.
Seems some similar firmware/software carried over
to the new Mini.
Currently Being ModeratedAug 28, 2011 3:21 AM (in response to MSM126)
Although "roaringapps" says that Plex 9 is Lion compatible, there are audio problems discussed in the Plex Forum, especially the 2 channel/8channel thing. I have seen rather complicated workarounds with kextinstallers and pacifist. Too complicatef for me.
Currently Being ModeratedAug 28, 2011 7:25 AM (in response to woodmeister50)
Do you know how to fix this myself? I saw there are applications like Soundflower and JackOSX that can take care of audio outputing.
Is this a way to overrule Apple's firmware/software? Any experience with this?