[mythtv-users] USB S/PDIF adapters

John P Poet jppoet at gmail.com
Sat Oct 25 20:29:39 UTC 2008

On Sat, Oct 25, 2008 at 2:03 PM, Nick Rout <nick.rout at gmail.com> wrote:
> On Sun, Oct 26, 2008 at 3:31 AM, Rod Smith <mythtv at rodsbooks.com> wrote:
>> On Friday 24 October 2008 05:01:15 pm Chris Niggel wrote:
>>> After getting settled into my new HD-capable myth box, I'd like to
>>> plug it into my stereo.  Has anyone had luck with a USB audio adapter
>>> with optical out?  I've seen a few emails on the subject roll through
>>> in the last few months, but without resolution.
>> Before you buy a USB sound device, you may want to consider another option:
>> Many motherboards have SPDIF connectors on their motherboards. You can buy or
>> build a simple bracket adapter that provides coaxial and/or optical outputs
>> from these motherboard connectors. Examples include:
>> http://www.pc2buy.com/ASUS_Motherboard_Accessories_SPDIF/SPDIF/partinfo-id-3473.html
>> http://www.vidabox.com/store/index.php?main_page=product_info&cPath=5_14&products_id=25
>> I've got an adapter from the latter of those sources and it works fine with my
>> motherboard (a Biostar, IIRC). Check your manual to see if you've got the
>> necessary connector. In some cases it may be necessary to move some wires
>> around, since the pin ordering isn't standardized, but that's a minor task.
>> Of course, you'll also need to have fully functional audio drivers for SPDIF
>> output.
>> Instructions for building your own are on the MythTV wiki:
>> http://www.mythtv.org/wiki/index.php/How_to_build_a_optical_SPDIF_bracket
>> IMHO, building your own is much more hassle than it's worth, unless you just
>> enjoy that sort of thing.
> The XITEL Pro HiFi-Link works fine for this, but they aren't making
> them any more. Try amazon.
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Most USB "sound cards", do not support 44.1KHz, so all of your music
will get resampled to 48KHz -- which is not a good thing.  On a good
stereo system, you will be able to tell the difference.

One of the few USB sound devices I have found which allow for 44.1KHz,
is the "Trends UD-10.1 USB Audio Converter"

A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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