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AAC passthrough (S/PDIF) solution? (PC to Home Audio)
DOHCtah
post Jun 3 2009, 10:28
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Hi guys,

I've been looking for a solution to output AAC on my PC through S/PDIF to my home audio system. My home audio receiver is capable of independently decoding AAC.

On my computer, I'm using ffdshow. It has options to passthrough AC3 and DTS, but not AAC. If I chose to disable AAC on ffdshow codecs, it still won't work.

I also know of the "convert AAC-to-AC3 on the fly" method, but I really would like to figure out a direct native passthrough to preserve quality.
I've also given thought to switching over to AC3Filter and others, but it doesn't seem like they support it either. If anyone could recommend one that works, it would be helpful

Its possible that I'm missing something very simple here. rolleyes.gif Any help would be appreciated. Thanks!
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slks
post Jul 3 2010, 05:47
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I don't know the technical details of S/PDIF, so I can't say whether or not it's possible to send an AAC stream through it. But even if it is technically possible, I doubt that your equipment would be able to decode it, even if it's configured to decode AAC from discs, flash drives, or however you'd otherwise get it to your receiver. Nobody sends AAC through S/PDIF, so there's little reason for a manufacturer to implement that on their device. Why not just decode the AACs on your PC before sending them down the wire? S/PDIF is perfectly capable of handling 44 or 48 kHz decompressed audio.


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Posts in this topic
- DOHCtah   AAC passthrough (S/PDIF) solution? (PC to Home Audio)   Jun 3 2009, 10:28
- - cowunder   QUOTE (DOHCtah @ Jun 3 2009, 10:28) Hi gu...   Jun 10 2010, 15:57
- - slks   I don't know the technical details of S/PDIF, ...   Jul 3 2010, 05:47
|- - Centauri   QUOTE (slks @ Jul 2 2010, 23:47) I don...   Jul 27 2010, 11:42
|- - andy o   You're sending the decoded AAC and ALAC stream...   Jul 27 2010, 12:14
- - andy o   The Dolby Headphone device SU-DH1 can decode AAC t...   Jul 3 2010, 06:29
- - Centauri   Ah. Well, so long as the receiver's DAC is ge...   Jul 27 2010, 12:30
- - cowunder   i have the same problem. i've searced many sit...   Nov 24 2010, 14:50
|- - KFal   QUOTE (cowunder @ Nov 24 2010, 15:50) i h...   Nov 24 2010, 19:08
|- - cowunder   QUOTE (KFal @ Nov 24 2010, 19:08) QUOTE (...   Nov 25 2010, 12:05
- - ramicio   FFDShow is open source, get to programming. I...   Nov 24 2010, 17:11
- - citylimits   Good timing! I got this working last night, so...   Jan 5 2011, 20:33
- - savantique   What is MCC - Home Theater Edition? I've never...   Apr 7 2012, 07:33
- - andy o   I thought he meant that too, but it doesn't ma...   Apr 7 2012, 08:31
- - savantique   From what I understand, only specific hardware can...   Apr 7 2012, 09:37
- - andy o   I don't think so, but nobody is transmitting A...   Apr 7 2012, 15:36
- - savantique   How would I go about doing that, though? I definit...   Apr 7 2012, 15:51
|- - LOCKDOC   QUOTE (savantique @ Apr 7 2012, 16:51) Ho...   Dec 27 2012, 03:26
- - andy o   Well 3 years later I still don't know if it...   Apr 7 2012, 16:28
- - Pusherman   Have you tried new XBMC? I might remember wrong, b...   Apr 7 2012, 17:34


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