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| VIA EPIA and Surround Sound http://forum.linhes.org/viewtopic.php?f=2&t=5393 |
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| Author: | tuatara [ Mon Jul 18, 2005 4:28 am ] |
| Post subject: | VIA EPIA and Surround Sound |
Has anyone got surround sound working on an EPIA with VT1616? I have used the audio out (stereo) plug, but in theory I should be able to either a) enable "smart 5.1" whereby the 3 audio plugs in the back (mic, sound out, sound in) become 5.1 outputs, or b) enable SPDIF and have digital audio goodness flowing to my amp. I have tried b), and do indeed have SPDIF going to my amp, but it seems to only be stereo and not 5.1. I can't find how to do a) inside linux. My question is: has anyone got surround going with an EPIA board? If so, what's the magic incarnation. Thanks Tuatara |
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| Author: | tuatara [ Wed Jul 20, 2005 11:29 pm ] |
| Post subject: | Solved... |
Turns out that xine doesn't seem to like people fooling with its ~/.xine/config file (setting 'Pass Through'), especially while its running. When I did that, my sound got really messed up. So I upped my config UI to 'Advanced' and ran xine config from within xine itself. That fixed the problem and now I have 6 georgeous channels over a digital SPDIF cable to my AMP. |
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| Author: | tuatara [ Sun Jul 24, 2005 6:50 pm ] |
| Post subject: | Surround sound solved... |
Ok: here's what you need to do to get surround sound working on an EPIA via SPDIF. Note that you actually have several problems to solve: a) xine playing 5.1 content *and* stereo content b) mythmusic c) mythtv. First off: - Enable SPDIF output by setting the jumper oyour motherboard. - Then run amixer set "IEC958 Playback AC97-SPSA" 0 Now setting up MythTV: - go to setup -> general. - Turn on ac3 passthrough. - Turn off your mixer. - Set your audio device to be "ALSA:spdif". Yes, thats not one of the options, but you can just type it in. For MythMusic - go to setup -> music - set audio device to be "ALSA:spdif". Same comment as above. For Xine (thanks to: http://www.flaterco.com/kb/audio.html) - right click -> Settings -> Setup. Gui tab: set Configuration experience level to Advanced or higher. Audio tab: o Set device used for mono output (device.alsa_default_device) to iec958. o Set device used for stereo output (device.alsa_front_device) to iec958. o Set device used for 5.1-channel output (device.alsa_passthrough_device) to iec958. o Ignore the other "device used for 5.1-channel output" (device.alsa_surround51_device). o Set speaker arrangement to Pass Through. |
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