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Discussion Starter · #1 ·
This is my first post, but I've been using this forum for awhile reading threads and stuff for my HTPC ... I searched, but didn't find anything that would help this issue.


So my problem is trying to play AC3 audio output from my HTPC to my Pioneer receiver. I am using a sound blaster Live external (USB) sound card that has both digital coaxial and optical SPDIF outs. My PC is running windows XP SP2.


The problem is that when I set FFDshow (or MPC's internal AC3 Filter or AC3Filter) AC3 output to SPDIF, I get no audio what so ever. I tried using the optical and coax outs and get the same result. I have zero issues playing DTS content over the SPDIF, and if I set ffDshow to liba52 I get output, but not Dolby Digital obv.


When I got the CPU info tab of ffdshow there is no information listed when I get this problem, no input or output data. As well with AC3filer there is no input data either.


Anyone have any idea on this issue?


I hope this in the right forum, if not can the mods move it please and I apologize.


Thanks ahead a time.
 

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Post a screenshot of your SPDIF configuration page. Preferably as it looks while you're playing the DVD.
 

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Discussion Starter · #4 ·
Ok here they are


First is with AC3 set to spdif:



Second is with AC3 set to lib52 and using spdif output





If there is something else let me know and i'll post that
 

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I'm not sure how the external sound blaster cards work but on the internal one I have (Audigy 2 ZS) there is an Audio HQ menu and in there is an option to either decode AC3/DTS (default) or pass it through SPDIF. This must be changed before the settings in the players/filters can do anything. Something to check into on you card as well.
 

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Discussion Starter · #6 ·
Ok ... where is that adjustment, I don't think there is the same for the external. The weird part is that is passes through DTS with no problems what so ever.
 

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Quote:
Originally Posted by Balagast /forum/post/14183534


ok i'll post them up

No, I meant ac3filter's SPDIF tab. Forget ffdshow for audio.


(You can attach it directly to your post without hosting using the "Manage Attachments" button.)
 
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