[mythtv-users] Digital Audio out with Via chipset

David myth at dgreaves.com
Wed Apr 13 16:34:04 UTC 2005


Herman Kuiper wrote:

> Hi,
>
>>             Has anyone ever used the spdif digital audio output on a
>> motherboard?  I have an asus a8v deluxe that uses a Via8237 audio
>> chipset. I would like to use the digital out but the Myth volume 
>> controls
>> are not working on the digital out. It works fine using the analog IE:
>> using the myth volume up and down changes the level. But when I use the
>> digital I get the full volume and no way to control it.
>
>
> I'm thought S/PDIF is always at maximum volume (or better: there is no 
> volume). At least my EPIA is also always on fixed volume, and I use my 
> amps volumeknob to change the level.

since SPDIF sends the raw PCM stream, I'd guess the only way to adjust 
the volume would be to resample or scale the bits on the fly - sounds 
unlikely. I could easily be wrong :)

I'm sending SPDIF to my amp - which has a remote control volume knob...

David


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