[mythtv-users] Digital Audio out with Via chipset

[Chad]

When I initially set mine up (same mobo/chipset) I had quite the
googling experience.  I remember reading several pages on different
lists and websites that said that you can't adjust the volume level on
those digital coax jacks, that it's a set audio stream level.  I
assume it's a limitation of our specific card, not of all cards with
that functionality.  And as other's on the list have noted, I solved
it by running it into my A/V reciever and adjusting that 'knob' volume
(that, as other's noted did seem a bit low) level, not the mixer's
volume level.

Not exactly helpful, but maybe enough to give you an answer.

Good Luck!  And if you find something different, please post it!

Chad

On 4/13/05, Brian Boyle <brian.boyle at toronto1.ca> wrote:
> After checking out the whiki digital howto site I figure that since you
> can resample you should able to change the volume. Sadly the site is
> sound blaster specific.
> 
> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of James Armstrong
> Sent: Wednesday, April 13, 2005 11:41 AM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Digital Audio out with Via chipset
> 
> >>> 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...
> 
> I'm using SPDIF on the Soundblaster Audigy. Controlled by ALSA. Volume
> control works for me. I don't have to mess with the amp. The driver
> probably just changes the amplitude before converting it to a digital
> stream out the SPDIF.
> 
> - James
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> 
> 
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> 
> 
>