I've sent this mail once before, but since I've received no response I send it again (only this once, I wont keep spamming...).
I've scoured the net, the alsa-user list and this mailing list for information about how to enable AC3/DTS passthrough on the S/PDIF connector on my new Creative Mp3+ USB box. The only thing I've been able to find is a vague reference saying something that spdif passthrough is not available in usb-audio. Is this the truth? If it is the truth, will it remain so forever, or is anyone working on it? If it is not true, what am I doing wrong? I can get regular stereo output on the digital out. I've got the box set to digital only, which I've worked out is a requirement in windows. I have tried playing stuff both with "aplay -Dspdif" (is this correct?) and with "mplayer -ac hwac3".
Would be very grateful for any help, since the passthrough was really the reason I bought the gadget, and I may be returning it if it's not going to work now or any time soon...
If someone is working on support for this I would be more than willing to help in testing it. I can not volunteer to actually develop it myself, since I've never worked on anything thats even closely related to this stuff. But I will gladly help anyone who's trying!
Lars
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