[pulseaudio-discuss] AC3 passthrough on SPDIF

Jon Smirl jonsmirl at gmail.com
Sun May 25 20:39:59 PDT 2008

On 5/25/08, Rick W. Chen <stuffcorpse at gmail.com> wrote:
> Jon Smirl said the following on 25/05/08 08:59:
> > After wondering for few hours how my stereo was supporting 5.1 sound
>  > over SPDIF which I thought was only a stereo connection, I discovered
>  > AC3 passthrough over SPDIF.
>  >
>  > I see various references to this in Google, is this supported yet? Is
>  > there a good write up on how to do it?
>  >
> I followed this guide http://ubuntuforums.org/showthread.php?p=4451132.
>  It uses alsa to encode ac3 on the fly for everything except actual ac3
>  or dts audio, which are passthrough.

I sort of have this working. I had a lot of trouble with seg faults
originally but I recompiled libasound2 and installed it and they went

So how do you run speaker-test with this config so that I can check if
it is working? What is the device name?

This should be way easier to set up. Everyone who runs a SPDIF cable
into their stereo needs it.

>  --
>   Rick
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Jon Smirl
jonsmirl at gmail.com

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