AAC 5.1 > SPIF ?

macOS specific usage questions
magforall
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AAC 5.1 > SPIF ?

Postby magforall » 09 Jan 2011 14:41

Hello,
I was trying to google my problems, but it seems to be no solution around, so:
Is here any way how to decode AAC multichannel (5.1) audio with VLC and play to to SPIF ? I have new unibody mini mac and this is really nightmare. Using Logitech Z-5500.
VLC with default setup downmix 5.1 to stereo :-(

Any suggestions ?

Thank you.

Jean-Baptiste Kempf
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Re: AAC 5.1 > SPIF ?

Postby Jean-Baptiste Kempf » 09 Jan 2011 16:21

Does it work if you change it in the Audio menu?
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leif81
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Re: AAC 5.1 > SPIF ?

Postby leif81 » 03 May 2011 01:47

Playing mp4's with AAC audio results in just stereo sound for me too. In VLC the audio type is set to SPDIF.

My work around is to use Handbrake to convert the AAC audio track to AC3 passthru.

Jean-Baptiste Kempf
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Re: AAC 5.1 > SPIF ?

Postby Jean-Baptiste Kempf » 03 May 2011 02:03

Is it even legal to use AAC in SPDIF ?
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ajmas
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Re: AAC 5.1 > SPIF ?

Postby ajmas » 03 May 2011 20:15

From what I have read sending AAC over SPDIF is fine, but for it to work you will need an amp that knows how to decode it. For most people I suspect a filter that converts to Dolby Digital 5.1 is what would be required.
Providing logs, messages, configuration info (VLC, OS, Hardware) and a clear explanation of the issue always helps the problem solvers help you, even if they don't end up solving the issue. Just think what you would need if you were solving someone else's problem. Additional: Always looking for eager and capable MacOS X developers to join the VLC team - for more information see here.


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